TSC 80251A1
TSC 80251A1
Extended 8–bit Microcontroller
with Analog Interfaces
Datasheet – 1996
TSC 80251A1
Rev. B (20/09/96)
General Introduction
Extended 8–bit Microcontroller with Analog Interfaces 1.. . . . . . . . . . . . . . . . .
Section I: Introduction to TSC80251A1
Chapter 1: Core Features I. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: Product Features I. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: Block Diagram I. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: Pin Description I. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section II: Design Information
Chapter 1: Configuration and Memory Mapping II. 1.1. . . . . . . . . . . . . . . . . .
1.1. Introduction II. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2. Configuration II. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1. Page Mode and Wait States II. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2. External Memory Signals II. 1.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3. Memory Mapping II. 1.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.1. Configuration Bytes II. 1.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.2. Program/Code Memory II. 1.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3.3. Data Memory II. 1.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
TSC 80251A1
Rev. B (20/09/96)
1.3.4. Special Function Registers II. 1.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: Parallel I/O Ports II. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1. Introduction II. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2. I/O Configurations II. 2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3. Port 1 and Port 3 II. 2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4. Port 0 and Port 2 II. 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5. Read–Modify–Write Instructions II. 2.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6. Quasi–Bidirectional Port Operation II. 2.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7. Port Loading II. 2.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8. External Memory Access II. 2.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: Timers/Counters II. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1. Introduction II. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2. Timer/Counter Operations II. 3.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3. Timer 0 II. 3.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.1. Mode 0 (13–bit Timer) II. 3.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.2. Mode 1 (16–bit Timer) II. 3.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.3. Mode 2 (8–bit Timer with Auto–Reload) II. 3.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3.4. Mode 3 (Two 8–bit Timers) II. 3.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4. Timer 1 II. 3.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1. Mode 0 (13–bit Timer) II. 3.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.2. Mode 1 (16–bit Timer) II. 3.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.3. Mode 2 (8–bit Timer with Auto–Reload) II. 3.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.4. Mode 3 (Halt) II. 3.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5. Registers II. 3.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: Serial I/O Port II. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1. Introduction II. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
4.2. Modes of Operation II. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3. Synchronous Mode (Mode 0) II. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.1. Transmission (Mode 0) II. 4.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3.2. Reception (Mode 0) II. 4.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4. Asynchronous Modes (Modes 1, 2 and 3) II. 4.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.1. T ransmission (Modes 1, 2 and 3) II. 4.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4.2. Reception (Modes 1, 2 and 3) II. 4.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5. Framing Bit Error Detection (Modes 1, 2 and 3) II. 4.5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6. Overrun Error Detection (Modes 1, 2 and 3) II. 4.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7. Multiprocessor Communication (Modes 2 and 3) II. 4.6. . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8. Automatic Address Recognition II. 4.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.1. Given Address II. 4.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.2. Broadcast Address II. 4.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8.3. Reset Addresses II. 4.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9. Baud Rates II. 4.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.1. Internal Baud Rate Generator II. 4.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.2. Baud Rate for Mode 0 II. 4.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.3. Transmission Clock Selection II. 4.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.4. Baud Rate for Modes 1 and 3 II. 4.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9.5. Baud Rate for Mode 2 II. 4.11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.10. Registers II. 4.12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5: Pulse Measurement Unit II. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1. Introduction II. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2. Description II. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3. Registers II. 5.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 6: Event and Waveform Controller II. 6.1. . . . . . . . . . . . . . . . . . . . . . .
6.1. Introduction II. 6.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2. Features II. 6.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3. PCA Mode II. 6.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
6.3.1. Timers/Counters II. 6.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.2. Compare/Capture Modules II. 6.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4. Enhanced PCA mode II. 6.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.1. Timers/Counters II. 6.11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5. Registers II. 6.13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7: 8-bit Analog to Digital Converter II. 7.1. . . . . . . . . . . . . . . . . . . . . .
7.1. Introduction II. 7.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2. Description II. 7.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3. Registers II. 7.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8: Monitoring and Power Management II. 8.1. . . . . . . . . . . . . . . . . . .
8.1. Introduction II. 8.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2. Power–On/Off Reset II. 8.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3. Power–Fail Detector II. 8.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4. Power–Off Flag II. 8.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5. Clock Prescaler II. 8.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6. Idle Mode II. 8.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6.1 Entering Idle Mode II. 8.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6.2 Exiting Idle Mode II. 8.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7. Power–Down Mode II. 8.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7.1 Entering Power–Down Mode II. 8.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7.2 Exiting Power–Down Mode II. 8.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8. Registers II. 8.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 9: Interrupt System II. 9.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1. Introduction II. 9.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2. Interrupt System Priorities II. 9.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
9.3. External Interrupts II. 9.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.4. Registers II. 9.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section III: Electrical and Mechanical Information
Chapter 1: DC Characteristics III. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: AC Characteristics III. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: ADC Characteristics III. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: EPROM Programming III. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1. Programming modes III. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2. Verify algorithm III. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5: TSC80C251A1: Packages III. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1. PLCC 44 III. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.1. Mechanical Outline III. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1.2. Pin Assignment III. 5.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2. CQPJ 44 with Window III. 5.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1. Mechanical Outline III. 5.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.2. Pin Assignment III. 5.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3. TQFP 44 III. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1. Mechanical Outline III. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.2. Pin Assignment III. 5.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
Section IV: Ordering Information
Ordering Information IV. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section V: TEMIC Addresses
Sales Offices Addresses V. so.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Representatives Addresses V. rep.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Distributors Addresses V. dist.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
Section I: Introduction to TSC80251A1
Chapter 3: Block Diagram
Figure 3.1. TSC80251A1 block diagram I. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: Pin Description
Figure 4.1. TSC80251A1 pin description I. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section II: Design Information
Chapter 1: Configuration and Memory Mapping
Figure 1.1. Bus structure in non–page mode and page mode II. 1.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.2. External bus cycle: code fetch, non–page mode II. 1.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.3. External bus cycle: code fetch, page mode II. 1.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.4. External bus cycle: code fetch with one RD#/PSEN# wait state in non–page mode II. 1.3. . . . . . . . . . . . .
Figure 1.5. Internal/external memory segments (RD1:0 = 00) II. 1.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.6. Internal/external memory segments (RD1:0 = 01) II. 1.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.7. Internal/external memory segments (RD1:0 = 10) II. 1.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.8. Internal/external memory segments (RD1:0 = 11) II. 1.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.9. Programmable Memory Mapping II. 1.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.10. Data Memory Mapping II. 1.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.11. Configuration byte 0 II. 1.11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.12. Configuration byte 1 II. 1.12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: Parallel I/O Ports
Figure 2.1. Port 1 and Port 3 structure II. 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.2. Port 0 structure II. 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.3. Port 2 structure II. 2.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.4. Internal pull–up configurations II. 2.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: Timers/Counters
Figure 3.1. Timer/Counter x (x = 0 or 1) in mode 0 and mode 1 II. 3.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.2. Timer/Counter x (x = 0 or 1) in mode 1 II. 3.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.3. Timer/Counter x (x = 0 or 1) in mode 2 II. 3.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.4. Timer/Counter in mode 3 : Two 8-bit Counters II. 3.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3.5. TCON register II. 3.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of figures
TSC 80251A1
Rev. B (20/09/96)
Figure 3.6. TMOD register II. 3.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: Serial I/O Port
Figure 4.1. Serial Port block diagram II. 4.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.2. Mode 0 timings II. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.3. Data frames (Modes 1, 2 and 3) II. 4.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.4. Overrun Error (Modes 1, 2 and 3) II. 4.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.5. Clock transmission sources in mode 0 II. 4.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.6. Timer 1 as Baud Rate Generator in modes 1 and 3 II. 4.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.7. Internal Baud Rate Generator in modes 1 and 3 II. 4.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.8. Baud Rate Generator selection II. 4.11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.9. UART in mode 2 II. 4.11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.10. BDRCON register II. 4.12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.11. BRL register II. 4.13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.12. SADDR register II. 4.13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.13. SADEN register II. 4.13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.14. SBUF register II. 4.13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.15. SCON register II. 4.14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5: Pulse Measurement Unit
Figure 5.1. PMU block diagram II. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.2. PMU module n (n = 0, 1, 2) II. 5.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.3. PMU measurement II. 5.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.4. Pulse measurement polarity II. 5.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.5. PMCON register II. 5.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.6. PMPER0 register II. 5.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.7. PMPER1 register II. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.8. PMPER2 register II. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.9. PMSCAL0 register II. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.10. PMSCAL1 register II. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.11. PMSCAL2 register II. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.12. PMSTAT register II. 5.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.13. PMU register II. 5.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.14. PMWID0 register II. 5.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.15. PMWID1 register II. 5.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.16. PMWID2 register II. 5.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 6: Event and Waveform Controller
Figure 6.1. EWC T imer/Counter in PCA mode II. 6.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6.2. PCA 16–bit Capture Mode II. 6.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6.3. PCA Software Timer and High–Speed Output Modes II. 6.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
Figure 6.4. PCA Watchdog Timer mode II. 6.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6.5. PWM mode II. 6.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6.6. PWM variable duty cycle II. 6.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 6.7. EWC Timer/Counter in EPCA mode II. 6.12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7: 8–bit Analog to Digital Converter
Figure 7.1. Analog Digital Converter structure II. 7.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 7.2. ADAT register II. 7.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 7.3. ADCON register II. 7.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8: Power Monitoring and Management
Figure 8.1. Behavior of the reset when the Power Supply is switched on II. 8.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.2. Behavior of the reset when the Power Supply is switched off II. 8.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.3. Power Management timings II. 8.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.4. Block diagram of the digital filter II. 8.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.5. Waveforms of the VDD filtering II. 8.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.6. Block diagram of the on–chip oscillator II. 8.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.7. Symbolic of the on–chip oscillator II. 8.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.8. PCON register II. 8.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.9. PFILT register II. 8.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.10. POWM register II. 8.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 8.11. CKRL register II. 8.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 9: Interruption System
Figure 9.1. Minimum pulse timings. II. 9.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.2. IE0 register II. 9.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.3. IE1 register II. 9.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.4. IPH0 register II. 9.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.5. IPH1 register II. 9.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.6. IPL0 register II. 9.9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 9.7. IPL1 register II. 9.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section III: Electrical and Mechanical Information
Chapter 1: DC Characteristics
Figure 1.1. IPD Test Condition, Power–Down mode III. 1.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.2. IDL Test Condition, Idle mode III. 1.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1.3. IDD Test Condition, Active mode III. 1.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: AC Characteristics
TSC 80251A1
Rev. B (20/09/96)
Figure 2.1. External Instruction Bus Cycle in non–page mode III. 2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.2. External Data Read Cycle in non–page mode III. 2.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.3. External Write Data Bus Cycle in non–page mode III. 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.4. External Instruction Bus Cycle in page mode III. 2.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.5. External Read Data Bus Cycle in page mode III. 2.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.6. External Write Data Bus Cycle in page mode III. 2.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 2.7. Serial Port Waveform – Shift Register mode III. 2.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: ADC Characteristics
Figure 3.1. A/D conversion characteristic III. 3.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: EPROM Programming
Figure 4.1. Setup for EPROM programming III. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.2. Timings for EPROM programming III. 4.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.3. Setup for EPROM verification III. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 4.4. Timings for EPROM verification III. 4.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5: Packages
Figure 5.1. Plastic Lead Chip Carrier III. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.2. Ceramic Quad Pack J III. 5.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5.3. Thin Quad Flat Pack (Plastic) III. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
Rev. B (20/09/96)
Section I: Introduction to TSC80251A1
Chapter 4: TSC80251A1 Pin Description
Table 4.1. TSC80251A1 pin description I. 4.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section II: Design Information
Chapter 1: Configuration and Memory Mapping
Table 1.1. Minimum Times to fetch two bytes of code II. 1.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 1.2. SFR addresses and Reset values II. 1.10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2: Parallel I/O Ports
Table 2.1. Port pin descriptions II. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 2.2. Instructions for external data moves II. 2.8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: Timers/Counters
Table 3.1. Timer/Counter SFRs II. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 3.2. External signals II. 3.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: Serial I/O Port
Table 4.1. Serial Port signals II. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4.2. Serial Port SFRs II. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 6: Event and Waveform Controller
Table 6.1. PCA module modes II. 6.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8: Power Monitoring and Management
Table 8.1. Pin conditions in various modes II. 8.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 9: Interruption System
Table 9.1. Interrupt system signals II. 9.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 9.2. Interrupt System SFRs II. 9.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 9.3. Level of Priority II. 9.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 9.4. Interrupt priority within level II. 9.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section III: Electrical and Mechanical Information
Chapter 1: DC Characteristics
Table 1.2. DC characteristics III. 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of tables
TSC 80251A1
Rev. B (20/09/96)
Chapter 2: AC Characteristics
Table 2.1. AC characteristics (Capacitive Loading = 50 pF) III. 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3: ADC Characteristics
Table 3.1. A/D Converter electrical characteristics III. 3.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4: EPROM Programming
Table 4.1. EPROM programming configuration III. 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4.2. EPROM verifying configuration III. 4.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 4.3. EPROM programming & verification characteristics
( TA = 21 to 275C ; VCC = 5V +/– 0.25V ; VSS= 0 ) III. 4.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5: Packages
Table 5.1. PLCC Chip size III. 5.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5.2. PLCC Pin assignment III. 5.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5.3. CQPJ Chip size III. 5.3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5.4. CQPJ Pin assignment III. 5.4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5.5. TQFP Chip size III. 5.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table 5.6. TQFP Pin assignment III. 5.6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TSC 80251A1
General Introduction
TSC 80251A1
Rev. B (20/09/96) 1.
The TSC80251A1 products are derivatives of the TEMIC Application Specific Microcontroller
family based on the extended 8–bit C251 Architecture described below.
This family of products are tailored to Microcontroller applications requiring analog interface
structures.
Three major peripheral blocks have been implemented to provide this facility to the designer:
Analog to Digital Converter: 4 inputs at 8–bit resolution.
Pulse Measurement Unit (PMU): 3 modules used to interface to smart analog sensors.
Event and Waveform Controller (EWC): 5 programmable Counters e.g. for Pulse Width
Modulation (PWM) or Compare/Capture functions.
1.1. Application focus
Typical applications for these products are CD–ROM, Card or Barcode readers, Monitors, Car
Navigation Systems, Airbag and Brake Systems, as well as all kinds of Industrial Control and
Measurement Equipment. With the high instruction throughput, the TSC80251A1 products are
focussing on all high–end 8–bit to 16–bit applications. They are also well suited to systems where
a lower operating frequency is needed to reduce power consumption or Radio Frequency
Interference (RFI), while maintaining a high level of CPU–power.
1.2. C251 Architecture
The C251 Architecture at its lowest performance level, is Binary Code compatible with the 80C51
Architecture. Due to a 3–stage Instruction Pipeline, the CPU–Performance is increased by up to 5
times, using existing 80C51 code without any modification.
Using the new C251 Instruction Set, the performance will be increased by up to 15 times, at the same
clock rate.
This performance enhancement is based on the 16–bit instruction bus and additional internal 8 and
16–bit data busses. The 24–bit address bus will allow an extension of the address space up to 16
Mbytes for future derivatives.
Programming flexibility and C–code efficiency are both increased by the Register–based
Architecture, the 64–Kbyte extended stack space, combined with the new Instruction Set.
Combining the above features of the C251 core, the final code size could be reduced by a factor of
3, compared to an 80C51 implementation.
All technical information in this document about core features are related to the core revision A
(A–stepping). A new core revision, B/C (B–stepping) is presently in preparation.
Both versions are upward compatible, so that no problem will appear if an A–stepping product is
replaced by a B–stepping one.
The major differences are some additional features in the configuration bytes and a modified
emulator interface which will not affect existing application.
Extended 8–bit Microcontroller with Analog Interfaces
TSC 80251A1
Rev. B (20/09/96)
2.
A new document will be released as soon as the first TSC80251A1 product will be available in
revision C.
1.3. TSC80251A1 Products
The TSC80251A1 is available as a ROMless version (TSC80251A1) or with on–chip Mask
Programmable ROM (TSC83251A1). The TSC87251A1 is an EPROM version or OTPROM (One
Time Programmable) compatible with the Mask ROM version.
The standard production packages are 44 pins PLCC or TQFP.
The products can be delivered as 12 or 16 MHz versions at 5 Volts and in all major temperature
ranges.
1.4. TSC80251A1 Documentation and Tools
The following documentation and Starter tools are available to allow the full evaluation of the
TEMIC TSC80251A1 product range:
D“TSC80251A1 Microcontroller”
Contains all information about the A1 derivatives (Block diagram, Memory mapping, Ports,
Peripheral description, Electrical Mechanical and Ordering Information...).
D“TSC80251 Programmer‘s Guide”
Contains all information for the programmer.
(Architecture, Instruction Set, Programming, Development tools)
D“TSC80251 Design Guide”
Contains a summary of available Application Notes for an easier usage of the TSC80251 and its
major peripherals.
D“TSC80251A1 Starter Kit”
This kit enables the TSC80251A1 to be evaluated by the designer.
It contains the following:
GC–Compiler (limited to 2 Kbytes of code)
GAssembler
GLinker
GTSC80251A1 Simulator
GOptionally TSC80251A1 Evaluation Board with ROM–Monitor
Please visit our WWW for updated versions in ZIP format.
D“TSC80251A1 Development Tools”
See chapter ”Development Tools” in the Programmer’s Guide” (Keil, Tasking, Hitex, Metalink,
Nohau)
DWorld Wide Web
Please contact our WWW for possible updated information at http://www.temic.de
DTSC80251 e–mail hotline: C251@temic.fr
TSC 80251A1
Section I
Introduction to TSC80251A1
TSC 80251A1
Rev. B (20/09/96) I. 1.1
Based on the extended 8–bit C251 Architecture, the TSC80251A1 includes a complete set of new
or improved C51 compatible peripherals as well as a 4 channels 8–bit A/D converter for
communication with the analog environment.
The key features of the new C251 Architecture are:
DRegister–based Architecture:
G40–byte Register File
GRegisters accessible as Bytes, Words, and Double Word.
D3-stage instruction pipeline
DEnriched Instruction Set
G16–bit and 32–bit arithmetic and logic instructions
GCompare and conditional jump instructions
GExpanded set of Move instructions
DReduced Instruction Set
G189 generic instructions
GFree space for additional instructions in the future
GAdditionally all 80C51 instructions are usable in binary mode
D16–bit internal code fetch
D64 Kbytes extended stack space
DMaximum addressable memory 16 Mbytes
The benefits of this new architecture are:
D5 times 80C51 performances in binary mode (80C51 binary code compatibility)
D15 times 80C51 performances in source mode (full architecture performance)
DUp to a factor 3 of code size reduction (when a C for 80C51 program is recompiled in C251
language)
DReduction of RFI and power consumption (reduced operating frequency)
DComplete System Development Support
GCompatible with existing tools
GNew tools available: Compiler, Assembler, Debugger, ICE
DEfficient C language support
Core Features
TSC 80251A1
Rev. B (20/09/96) I. 2.1
D1 Kbyte of internal RAM
DTSC83251A1: 24 Kbytes of on-chip masked ROM
DTSC87251A1: 24 Kbytes of internal programmable ROM (OTP or UV erasable in window
package)
DTSC80251A1: ROMless version
DExternal memory space (Code/Data): 256 Kbytes
DFour 8–bit parallel I/O Ports (Ports 0, 1, 2 and 3 of the standard 80C51)
DTwo 16–bit Timers/Counters (Timers 0 and 1 of the standard 80C51)
DSerial I/O Port : full duplex UART (80C51 compatible)
DThree PMU: Pulse Measurement Unit for smart analog interface
For each of the three modules:
G8–bit prescaler
G8–bit Timer for period and width measurements (duty cycle)
GThe measurement can start either on the rising or on the falling edge
GOne interrupt
GOnly one port line is used
DEWC: Event and Waveform Controller
GHigh-speed output
GCompare/Capture inputs
GPWM: Pulse Width Modulator
GWatchdog Timer capabilities
GCompatible with PCA: Programmable Counter Array (5 x 16–bit modules)
D8–bit Analog to Digital Converter
G4 channels
GConversion time: 600 clock periods (37.5 µs at 16 MHz)
DPower Management
GPower–On reset (integrated on the chip)
GPower–Off flag (cold and warm resets)
GPower-Fail detector
GPower consumption reduction
GSoftware programmable system clock
GIdle and Power–Down modes
DPower Supply: 5V ± 10%
DUp to 16 MHz operation and three temperature ranges(*):
GCommercial (0 to 70°C)
GIndustrial (–40 to +85°C)
GAutomotive (–40 to +125°C)
DPackages: PLCC44, CQPJ44 (window) and TQFP44(**)
*Please contact your sales office for availability of speed options
** Please contact your sales office for TQFP availability
Product Features
TSC 80251A1
Rev. B (20/09/96) I. 3.1
P2 (A15–8) P0 (AD7–0)
PSEN#
RAM
Bus Interface Unit
CPU
Timer 0 and Timer 1
Interrupt Handler
Unit
16–bit Memory Code
16–bit Memory Address
ALE/PROG#
P1(A17)
EA#/VPP
XTAL1 XTAL2
RST
P3(A16)
VDD0 VSS0 VSS1 AVDD AVSS
UART
Event and Waveform
Controller
Pulse Measurement
Unit
Vref
1 Kbyte
Clock Unit
Clock System PrescalerEPROM
24 Kbytes
PORTS
16-bit Inst. Bus
24-bit Prog. Counter Bus
8-bit Data Bus
24-bit Data Address Bus
Peripheral Interface Unit
8-bit Internal Bus
4 x 8–bit ADC
Power–On Reset
ROM
OTPROM
0-3
Figure 3.1. TSC80251A1 block diagram
Block Diagram
TSC 80251A1
Rev. B (20/09/96) I. 4.1
P1.4/CEX1
P3.0/RXD
P3.5/T1
TSC80251A1
P1.6/PMI1/CEX3
P1.5/PMI0/CEX2
P3.4/T0
P3.3/INT1#
P3.2/INT0#
P3.1/TXD
P1.7/A17/PMI2/CEX4
RST
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA#/VPP
ALE/PROG#
PSEN#
P2.7/A15
P2.6/A14
VDD0
VSS0
P1.3/CEX0/AN3
P1.2/ECI/AN2
P1.1/AN1
P1.0/AN0
Vref
AVSS
AVDD
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P3.6/WR#
P3.7/RD#/A16
XTAL2
XTAL1
VSS1
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11/PMI0
P2.4/A12/PMI1
P2.5/A13/PMI2
Figure 4.1. TSC80251A1 pin description
Pin Description
TSC 80251A1
Rev. B (20/09/96)
I. 4.2
Table 4.1. TSC80251A1 pin description
Pin Type Description
P0.0:7 I/O Port 0
This is an 8–bit open–drain bidirectional I/O port. Port 0 pins that have 1s written to
them float and can be used as high–impedance inputs.
It is also Address/Data lines AD0:7, which are multiplexed lower address lines and
data lines for external memory.
External pull–ups are required during pr ogram verification.
P1.0:7 I/O Port 1
This is an 8–bit bidirectional I/O port.
It receives the low–order address byte during EPROM programming and verifica-
tion.
It serves also the functions of various special features:
P1.0 AN0 : Analog Input 0,
P1.1 AN1 : Analog input 1,
P1.2 ECI : EWC External Clock input.
AN2 : Analog input 2,
P1.3 CEX0 : EWC module 0 Capture input/PWM output.
AN3 : Analog input 3,
P1.4 CEX1 : EWC module 1 Capture input/PWM output,
P1.5 PMI0 : Pulse Measurement input 0,
CEX2 : EWC module 2 Capture input/PWM output.
P1.6 EAD6 : External Address line 6,
PMI1 : Pulse Measurement input 1,
CEX3 : EWC module 3 Capture input/PWM output.
P1.7 A17 : Address line for the 256–Kbyte memory space depending on the
byte CONFIG0 (See NO TAG),
PMI2 : Pulse Measurement input 2,
CEX4 : EWC module 4 Capture input/PWM output.
P2.0:7 I/O Port 2
This is an 8–bit bidirectional I/O port with internal pull-ups.
It is also Address lines A8:15, which are upper address lines for external memory.
P3.0:7 I/O Port 3
This is an 8–bit bidirectional I/O port with internal pull-ups.
It receives the high–order address bits during EPROM programming and verifica-
tion.
It serves also the functions of various special features:
P3.0 RXD : Serial Port Receive Data input.
P3.1 TXD : Serial Port Transmit Data output.
P3.2 INT0# : External Interrupt 0.
P3.3 INT1# : External Interrupt 1.
P3.4 T0 : Timer 0 external clock input.
P3.5 T1 : Timer 1 external clock input.
P3.6 WR# : Write signal for external access.
P3.7 A16 : Address line for 128–Kbyte and 256–Kbyte memory space
depending on the byte CONFIG0,
RD# : Read signal for external access, depending on the byte CONFIG0.
TSC 80251A1
Rev. B (20/09/96) I. 4.3
DescriptionTypePin
ALE/PROG# I/O Address Latch Enable/Program Pulse
It signals the start of an external bus cycle and indicates that valid address informa-
tion is available on lines A15:8 and AD7:0. An external latch can use ALE to de-
multiplex the address from address/data bus.
It is also used as the Program Pulse input PROG#, during EPROM programming.
PSEN# O Program Store Enable/Read signal output
This output is asserted for a memory address range that depends on bits RD0 and
RD1 in configuration byte CONFIG0.
EA#/VPP I External Access Enable/Programming Supply Voltage
This input directs program memory accesses to on–chip or off–chip code memory.
For EA# = 0, all program memory accesses are off-chip.
For EA# = 1, an access is on-chip OTPROM/EPROM/ROM if the address is within
the range of the on–chip OTPROM/EPROM/ROM; otherwise the access is off-chip.
The value of EA# is latched at reset. For devices without ROM on-chip, EA# must
be strapped to ground.
It receives also the Programming Supply Voltage VPP during EPROM programming
operation.
Vref I Voltage reference for the Analog to Digital Converter
VSS0 GND Digital Ground
VDD0 PWR Digital Supply Voltage
VSS1 GND Digital Ground
AVSS GND Analog Ground
AVDD PWR Analog Supply Voltage
RST I Reset input to the chip
Holding this pin high for 64 oscillator periods while the oscillator is running resets
the device. The Port pins are driven to their reset conditions when a voltage greater
than VIH1 is applied, whether or not the oscillator is running.
This pin has an internal pull-down resistor which allows the device to be reset by
connecting a capacitor between this pin and VDD0.
Asserting RST when the chip is in Idle mode or Power–Down mode returns the chip
to normal operation.
XTAL1 I Input to the on–chip inverting oscillator amplifier
To use the internal oscillator , a crystal/resonator circuit is connected to this pin. If an
external oscillator is used, its output is connected to this pin. XTAL1 is the clock
source for internal timing.
XTAL2 O Output of the on–chip inverting oscillator amplifier
To use the internal oscillator , a crystal/resonator circuit is connected to this pin. If an
external oscillator is used, leave XTAL2 unconnected.
TSC 80251A1
Section II
Design Information
TSC 80251A1
Rev. B (20/09/96) II. 1.1
1.1. Introduction
The C251 Architecture provides generic configuration and memory addressing capabilities.
However, the products based on this Architecture may provide various derivative features. The
configuration and memory mapping features of the TSC80251A1 derivatives are detailed in this
section.
1.2. Configuration
The TSC80251A1 derivatives provide design flexibility by configuring certain operating features
during the device reset. These features fall into the following categories:
external/internal memory access operation,
external memory interface,
source/binary mode opcodes,
selection of bytes stored on the stack by an interrupt.
The choice of internal program/code or external memory access is made through the External Access
pin (EA#, see paragraph 1.3.2.). The internal memories of the TSC80251A1 derivatives are detailed
in paragraph 1.3. “Memory Mapping”.
The choice of external memory interface is detailed in this section:
Page Mode and Wait States
External Memory Signals
The choice of source or binary mode and the interrupt processing are discussed in the TSC80251
Programmers’ Guide.
These settings are made based on two configuration bytes (CONFIG0 and CONFIG1, see
Figure 1.11. and Figure 1.12. at the end of this chapter).
1.2.1. Page Mode and Wait States
This part discusses the choice of external cycle speed configuration. All the external bus cycles are
based on states which are made of two cycles of the internal oscillator. The external XTAL1
frequency can be internally divided by the oscillator to reduce the power consumption (See “Power
Monitoring and Management” chapter) and the speed of the external cycles is then reduced
accordingly.
TSC80251A1 derivatives use two 8–bit ports (P0, P2) to multiplex a 16–bit address bus and an 8–bit
data bus. The first configuration is multiplexing the lower 8–bit address bus and the 8–bit data bus
on Port 0; this is the non–page mode which is compatible with the 80C51 derivatives. The second
configuration is multiplexing the upper 8–bit address bus and the 8–bit data bus on Port 2; this is the
page mode which improves performance. This bus structure is shown on Figure 1.1 and is configured
by the PAGE bit of CONFIG0 byte.
Configuration and Memory Mapping
TSC 80251A1
Rev. B (20/09/96)
II. 1.2
A15:8
AD7:0
A7:0 A15:8/D7:0
A7:0
A7:0
D7:0
A15:8
A7:0
D7:0
A15:8
Latch Latch
RAM/
EPROM/
Flash
TSC80251A1 TSC80251A1
Non–page
Mode Page Mode
P0
P2
P0
P2
A15:8 RAM/
EPROM/
Flash
D7:0
Figure 1.1. Bus structure in non–page mode and page mode
The Figure 1.2. highlights the non–page mode configuration with a code fetch cycle. One state is
used to latch A7:0 on Port 0, then the data are transferred during the second state.
A7:0 D7:0
A17/A16/A15:8
OSC
ALE
RD#/PSEN#
P0
A17/A16/P2
State 1 State 2
Figure 1.2. External bus cycle: code fetch, non–page mode
TSC 80251A1
Rev. B (20/09/96) II. 1.3
OSC
ALE
RD#/PSEN#
State 1 State 2
A17/A16/A7:0
A17/A16/A7:0
State 3
D7:0 D7:0A15:8
A17/A16/P0
Figure 1.3. External bus cycle: code fetch, page mode
Three configuration bits are provided to introduce Wait States and modulate the access time
depending on the external devices. One wait state can be added to extend the address latch time using
the XALE bit in CONFIG0 byte. Another wait state can also be added to extend the data access time
once the multiplexed addresses have been latched. Figure 1.4. shows a code fetch in non–page mode
with one such wait state. The W ait State A bit (WSA bit in CONFIG0 byte) adds one state for external
program/code and data accesses (See segments FF:, FE:, 00: in paragraph 1.2.2.). The Wait State B
bit (WSB bit in CONFIG1 byte) adds one state for external data accesses only (See segment 01: in
paragraph 1.2.2.).
OSC
ALE
RD#/PSEN#
P0
A17/A16/P2
State 1 State 2
A17/A16/A15:8
D7:0A7:0
State 3
Figure 1.4. External bus cycle: code fetch with one RD#/PSEN# wait state in non–page mode
TSC 80251A1
Rev. B (20/09/96)
II. 1.4
1.2.2. External Memory Signals
For easy reference to the C51 Architecture, it is convenient to consider the 24–bit linear address space
of the C251 Architecture as 256 segments of 64 Kbytes (from segment 00: to segment FF:). Some
of these segments are reserved to map the internal registers and, in this section, we only consider the
segments which allows to access to the external memory. In the TSC80251A1 derivatives only four
segments of the 24–bit internal address space (00:, 01:, FE:, FF:) are implemented to address the
external memory. This allows a maximum program or data memory space of 256 Kbytes. Various
configurations are possible, depending on the Read configuration bits (RD1:0) which are set in
CONFIG0 byte.
1.2.2.1. How to address 256 Kbytes
The maximum external memory is provided when RD1:0 = 00, as shown on Figure 1.5. PSEN# is
used as a read signal and WR# is used as a write signal. Eighteen address bits are provided externally
(P0, P2, A16, A17) to control 256 Kbytes in four segments. In this configuration, the program/code
and data spaces share the same external memory segments.
AddressesRead/Write Signals Segments
FF:
FE:
01:
00:
FF:
FE:
01:
00:
PSEN#
PSEN#/WR#
External Memory
256 Kbytes
A17, A16, P2, P0
FF:
FE:
01:
00:
Internal Spaces
Program/Code
Data
11
10
01
00
11
10
01
00
11
10
01
00
A17/A16
Figure 1.5. Internal/external memory segments (RD1:0 = 00)
1.2.2.2. How to address 128 Kbytes
One I/O pin (P1.7/A17) is saved if 128 Kbytes of external memory are enough, as shown on
Figure 1.6. (RD1:0 = 01). PSEN# is used as a read signal and WR# is used as a write signal.
Seventeen address bits are provided externally (P0, P2, A16) to control 128 Kbytes in two segments.
In this configuration, the program/code and data spaces share the same external memory segments
which are replicated twice in each internal space.
TSC 80251A1
Rev. B (20/09/96) II. 1.5
Segments Addr esses External Memory
FF:
FE:
01:
00:
FF:
FE:
01:
00:
PSEN#
PSEN#/WR#
128 Kbytes
A16, P2, P0
01:, FF:
00:, FE:
Read/Write SignalsInternal Spaces
Program/Code
Data
1
0
1
0
1
0
1
0
1
0
A16
Figure 1.6. Internal/external memory segments (RD1:0 = 01)
1.2.2.3. How to address 64 Kbytes
Two I/O pins (P1.7/A17, P3.7/A16/RD#) are saved if 64 Kbytes of external memory are enough, as
shown on Figure 1.7. (RD1:0 = 10). PSEN# is used as a read signal and WR# is used as a write signal.
Sixteen address bits are provided externally (P0, P2) to control 64 Kbytes in one segment. In this
configuration, the program/code and data share the same external memory segment which is
replicated four times in each internal space.
Segments
FF:
FE:
01:
00:
FF:
FE:
01:
00:
PSEN#
PSEN#/WR#
64 Kbytes
00:, 01:, FE:, FF:
AddressesRead/Write Signals External MemoryInternal Spaces
Program/Code
Data
P2, P0
Figure 1.7. Internal/external memory segments (RD1:0 = 10)
1.2.2.4. How to keep C51 memory compatibility
The last configuration provides a full compatibility with the C51 Architecture, as shown on
Figure 1.8. (RD1:0 = 11). PSEN# is used as a read signal for program/code memory read while RD#
is used as a read signal and WR# is used as a write signal for data memory accesses. Sixteen address
TSC 80251A1
Rev. B (20/09/96)
II. 1.6
bits are provided externally (Port 0, Port 2). In this configuration, the program/code fits in one
read–only external memory segment and the data fits in another read–write external memory
segment. Each segment is replicated four times in one internal space.
FF:
FE:
01:
00:
FF:
FE:
01:
00:
PSEN#
RD#/WR#
2x64 Kbytes
00:, 01:, FE:, FF:
00:, 01:, FE:, FF:
Program/Code
Data
Segments AddressesRead/Write Signals External MemoryInternal Spaces
P2, P0
Figure 1.8. Internal/external memory segments (RD1:0 = 11)
1.3. Memory Mapping
The specific internal memories of the TSC80251A1 derivatives fall into the following categories:
2 Configuration bytes,
24 Kbytes on–chip ROM or EPROM/OTP program/code memory,
1 Kbyte on–chip RAM data memory,
Special Function Registers (SFRs).
1.3.1. Configuration Bytes
The Configuration bytes, CONFIG0 and CONFIG1, are detailed in Figure 1.11. and Figure 1.12.
During reset they are read from a specific ROM area. For the TSC87251A1 EPROM and OTPROM
versions, these bytes are programmable in an EPROM area (See “EPROM programming” chapter).
For the TSC83251A1 masked ROM versions, these bytes are additional information provided in a
masked ROM area. For the TSC80251A1 ROMless versions, these bytes are configured in factory
according to the part number (See “Ordering Information”). These bytes are not accessible by the
user during operation and they do not appear in the Memory Mapping of the TSC80251A1
derivatives.
TSC 80251A1
Rev. B (20/09/96) II. 1.7
FF:5FFFh
Internal Memory
ROM Code
Program/code
Segments
Program/code
External Memory Space FF:FFFFh
FF:6000h
FF:0000h
FE:0000h
01:FFFFh
01:0000h
00:0000h
00:FFFFh
FE:FFFFh
EA#=0 8 Kbytes
16 Kbytes
40 Kbytes
24 Kbytes
FD:FFFFh
02:0000h
Reserved
64 Kbytes
128 Kbytes
Figure 1.9. Programmable Memory Mapping
1.3.2. Program/Code Memory
The split of the internal and external program/code memory space is shown on Figure 1.9. If EA#
is tied to a high level, the 24–Kbyte internal program memory are mapped in the lower part of
segment FF: where the C251 core jumps after reset. The rest of the program/code memory space is
mapped to the external memory (See paragraph 1.2.2. to determine to which external memory
location each segment actually maps). If EA# is tied to a low level, the internal program/code
memory is not used and all the accesses are directed to the external memory. Table 1.1. lists the
minimum times to fetch on–chip and external memory.
Table 1.1. Minimum Times to fetch two bytes of code
Type of code memory State times
On–chip code memory 1
External memory (page mode) 2
External memory (nonpage mode) 4
For the TSC87251A1 EPROM and OTPROM versions, the internal program/code is programmable
in EPROM (See “EPROM programming” chapter). For the TSC83251A1 masked ROM versions,
the internal program/code is provided in a masked ROM. For the TSC80251A1 ROMless versions,
there is no possible internal program/code and EA# must be tied to a low level. In fact, for
TSC83251A1 and TSC87251A1 versions, the upper 8 Kbytes of the internal ROM are also mapped
in the data space (See paragraph 1.3.3.).
TSC 80251A1
Rev. B (20/09/96)
II. 1.8
Note:
Special care should be taken when the Program Counter (PC) increments:
If your program executes exclusively from on–chip ROM/OTPROM/EPROM (not from external memory), beware
of executing code from the upper eight bytes of the on–chip ROM/OTPROM/EPROM (FF:5FF8h–FF:5FFFh).
Because of its pipeline capability, the 80C251A1 may attempt to prefetch code from external memory (at an
address above FF:5FF8H/FF:5FFFH) and thereby disrupt I/O Ports 0 and 2. Fetching code constants from these
eight bytes does not affect Ports 0 and 2.
When PC reaches the end of segment FF:, it loops to the reset address FF:0000h (for compatibility with the C51
architecture). When PC increments beyond the end of segment FE:, it continues at the reset address FF:0000h
(linearity). When PC increments beyond the end of segment 01:, it loops to the beginning of segment 00: (this
prevents it going into the reserved area).
1.3.3. Data Memory
FF:5FFFh
Data External
Memory Space Internal Memory
ROM Code
FF:FFFFh
FF:6000h
FF:0000h
01:0000h
FC:0000h
FE:FFFFh
EA#=0 8 Kbytes
16 Kbytes
1 Kbyte
32 bytes reg.
EMAP=1 00:EFFFh
00:E000h
Data Segments
40 Kbytes
24 Kbytes
8 Kbytes
55 Kbytes
RAM Data
FE:0000h
01:FFFFh
FD:FFFFh
02:0000h
Reserved
64 Kbytes
64 Kbytes
EMAP=0
EA#=1
Figure 1.10. Data Memory Mapping
The split of the internal and external data memory space is shown on Figure 1.10. All the
TSC80251A1 derivatives feature an internal 1 Kbyte RAM. This memory is mapped in the data space
just over the 32 bytes of registers area (See TSC80251 Programmers’ Guide). Hence, the lowermost
96 bytes of the internal RAM are bit addressable. This internal RAM is not accessible through the
program/code memory space.
For computation with the internal ROM code of the TSC83251A1 and TSC87251A1 versions, its
upper 8 Kbytes are also mapped in the data space if the EPROM Map configuration bit is cleared
(EMAP bit in CONFIG1 byte, see Figure 1.2. ). However, if EA# is tied to a low level and the
TSC80251A1 derivative is running as a ROMless, the code is actually fetched in the corresponding
external memory (i.e. the upper 8 Kbytes of the lower 24 Kbytes of segment FF:). If EMAP bit is
set, the internal ROM is not accessible through the data memory space.
TSC 80251A1
Rev. B (20/09/96) II. 1.9
All the accesses to the portion of the data space with no internal memory mapped onto are redirected
to the external memory, see paragraph 1.2.2. to determine to which external memory location each
segment actually maps.
1.3.4. Special Function Registers
The Special Function Registers (SFRs) of the TSC80251A1 derivatives fall into the following
categories:
DC251 core registers (SP, SPH, DPL, DPH, DPXL, PSW, PSW1, ACC, B)
DPort registers (P0, P1, P2, P3)
DTimer registers (TCON, TMOD, TL0, TL1, TH0, TH1)
DSerial Port and Baud Rate Generator registers (SCON, SBUF, SADDR, SADEN, BDRCON,
BRL)
DPulse Measurement Unit registers (PMU, PMCON, PMSCAL0, PMSCAL1, PMSCAL2,
PMPER0, PMPER1, PMPER2, PMWID0, PMWID1, PMWID2)
DEvent and Waveform Controller registers:
GCounters (CCON, CMOD, CMOD0, CMOD1, CMOD2, COF, CRC, CIE, CL0, CL1, CL2,
CL3, CL4, CH0, CH1, CH2, CH3, CH4)
GCompare/Capture (CCAPM0, CCAPM1, CCAPM2, CCAPM3, CCAPM4, CCAPL0,
CCAPL1, CCAPL2, CCAPL3, CCAPL4, CCAPH0, CCAPH1, CCAPH2, CCAPH3,
CCAPH4)
DAnalog to Digital Converter registers (ADCON, ADAT)
DPower monitoring/management and clock control registers (PCON, PFILT, POWM, CKRL)
DInterrupt system registers (IE0, IE1, IPL0, IPL1, IPH0, IPH1)
SFRs are placed in a reserved internal memory segment S: which is not represented in the internal
memory mapping. The relative addresses within S of these SFRs within S: are provided together with
their reset values in T able 1.2. . All the SFRs are bit–addressable using the C251 Instruction Set. The
C251 core registers are in italics in this table and they are described in the TSC80251 Programmers’
Guide. The other registers are detailed in the following sections which fully describe each peripheral
unit.
TSC 80251A1
Rev. B (20/09/96)
II. 1.10
Table 1.2. SFR addresses and Reset values
F8h CH = CH0
0000 0000 CCAP0H
XXXX XXXX CCAP1H
XXXX XXXX CCAP2H
XXXX XXXX CCAP3H
XXXX XXXX CCAP4H
XXXX XXXX CMOD3
0000 0000
F0h B**
0000 0000 CH1
0000 0000 CH2
0000 0000 CH3
0000 0000 CH4
0000 0000
E8h CL = CL0
0000 0000 CCAP0L
XXXX XXXX CCAP1L
XXXX XXXX CCAP2L
XXXX XXXX CCAP3L
XXXX XXXX CCAP4L
XXXX XXXX CMOD2
0000 0000
E0h ACC**
0000 0000 COF
XXX0 0000 CRC
0000 0000 CIE
XXX0 0000 CL1
0000 0000 CL2
0000 0000 CL3
0000 0000 CL4
0000 0000
D8h CCON
0000 0000 CMOD
00XX X000 CCAPM0
X000 0000 CCAPM1
X000 0000 CCAPM2
X000 0000 CCAPM3
X000 0000 CCAPM4
X000 0000 CMOD1
0000 0000
D0h PSW**
0000 0000 PSW1**
0000 0000
C8h
C0h ADCON
XXX0 0X00 ADAT*
XXXX XXXX
B8h IPL0
0000 0000 SADEN
0000 0000 SPH**
0000 0000
B0h P3
1111 1111 IE1
X000 0000 IPL1
0000 0000 IPH1
0000 0000 IPH0
0000 0000
A8h IE0
0000 0000 SADDR
0000 0000 PMSCAL0
XXXX XXXX PMSCAL1
XXXX XXXX PMSCAL2
XXXX XXXX PMCON
X000 X000 PMSTAT
X000 X000
A0h P2
1111 1111 PMPER0*
XXXX XXXXh PMWID0*
XXXX XXXXh PMPER1*
XXXX XXXXh PMWID1*
XXXX XXXXh PMPER2*
XXXX XXXXh PMWID2*
XXXX XXXXh
98h SCON
0000 0000 SBUF
XXXX XXXX BRL
0000 0000 BDRCON
XXX0 0000 PMU
XXXX XXX0
90h P1
1111 1111
88h TCON
0000 0000 TMOD
0000 0000 TL0
0000 0000 TL1
0000 0000 TH0
0000 0000 TH1
0000 0000 CKRL
0000 1000 POWM
0XX0 0000
80h P0
1111 1111 SP**
0000 0111 DPL**
0000 0000 DPH**
0000 0000 DPXL**
0000 0001 PFILT
0000 1000 PCON
000X 0000
0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F
* read only
**C251 core registers described in the TSC80251 Programmer’s Guide
reserved
S:00h – S7Fh unimplemented
S:100h – S:1FFh unimplemented
TSC 80251A1
Rev. B (20/09/96) II. 1.11
CONFIG0
Configuration byte 0
– – WSA XALE RD1 RD0 PAGE SRC
76543210
Bit Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 WSA Wait State A bit
Clear to generate one external wait state for memory regions 00:, FE:, and FF:.
Set for no wait states for these regions.
4 XALE Extend ALE bit
Clear to extend the time of the ALE pulse from TOSC to 3.TOSC, which adds
one external wait state.
Set the time of the ALE pulse to TOSC.
3, 2 RD1, RD0 RD# and PSEN# Function Select bits
RD1 RD0 RD# P1.7 PSEN# Range
0 0 A16 A17 PSEN# is the read signal for both
external data and program address
space (256 Kbytes).
0 1 A16 I/O pin PSEN# is the read signal for both
external data and program address
space (128 Kbytes).
1 0 P3.7 I/O pin PSEN# is the read signal for both
external data and program address
space (64 Kbytes).
1 1 RD# I/O pin 64–Kbyte code memory space
64–Kbyte data memory space
1 PAGE Page Mode Select bit
Clear for page–mode with A15:8/D7:0 on Port 2, and A7:0 on Port0.
Set for non page–mode with A15:8 on Port 2, and A7:0/D7:0 on Port 0
(compatible with 80C51microcontrollers).
0 SRC Source Mode/Binary Mode Select bit
Clear for Binary Mode (Binary Code compatible with 80C51 microcontrollers)
Set for Source Mode.
Figure 1.11. Configuration byte 0
Note:
To configure the TSC80251A1 in C51 microcontroller mode, use the following bit values in CONFIG0: 1 101
1110B.
TSC 80251A1
Rev. B (20/09/96)
II. 1.12
CONFIG1
Configuration byte 1
– – – INTR WSB – – EMAP
76543210
Bit Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 INTR Interrupt Mode bit
Clear so that the interrupts push 2 bytes onto the stack (the 2 lower bytes of
the PC register).
Set so that the interrupts push 4 bytes onto the stack (the 3 bytes of the PC
register and the PSW1 register).
3 WSB Wait State B bit
Clear to generate one external wait state for memory region 01:.
Set for no wait states for region 01:.
2 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
1 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
0 EMAP EPROM Map bit
Clear to map the upper 8 Kbytes of on–chip code memory
(FF:3000h-FF:5FFFh) to 00:C000h-00:FFFFh.
Set to map the upper 12 Kbytes of on–chip code memory
to FF:3000h-FF:5FFFh.
Figure 1.12. Configuration byte 1
Note:
To configure the TSC80251A1 in C51 microcontroller mode, use the following bit values in CONFIG1: 1 110
0111B.
TSC 80251A1
Rev. B (20/09/96) II. 2.1
2.1. Introduction
The TSC80251A1 uses input/output (I/O) Ports to exchange data with external devices. In addition
to performing general–purpose I/O, some Ports are capable of external memory operations; others
allow for alternate functions. All four TSC80251A1 I/O Ports are bidirectional. Each Port contains
a latch, an output driver and an input buffer. Port 0 and Port 2 output drivers and input buffers
facilitate external memory operations. Port 0 drives the lower address byte onto the parallel address
bus and Port 2 drives the upper address byte onto the bus. In non–page mode, the data is multiplexed
with the lower address byte on Port 0. In page mode, the data is multiplexed with the upper address
byte on Port 2. All Port 1 and Port 3 pins serve for both general–purpose I/O and alternate functions
(See Table 2.1. ).
Table 2.1. Port pin descriptions
Pin Name Type Alternate Pin Name Alternate Description Alternate Type
P0.0 I/O AD0 Address/Data line 0 (Non–page mode)
Address line 0 (Page mode) I/O
P0.1 I/O AD1 Address/Data line 1 (Non–page mode)
Address line 1 (Page mode) I/O
P0.2 I/O AD2 Address/Data line 2 (Non–page mode)
Address line 2 (Page mode) I/O
P0.3 I/O AD3 Address/Data line 3 (Non–page mode)
Address line 3 (Page mode) I/O
P0.4 I/O AD4 Address/Data line 4 (Non–page mode)
Address line 4 (Page mode) I/O
P0.5 I/O AD5 Address/Data line 5 (Non–page mode)
Address line 5 (Page mode) I/O
P0.6 I/O AD6 Address/Data line 6 (Non–page mode)
Address line 6 (Page mode) I/O
P0.7 I/O AD7 Address/Data line 7 (Non–page mode)
Address line 7 (Page mode) I/O
Parallel I/O Ports
TSC 80251A1
Rev. B (20/09/96)
II. 2.2
Pin Name Type Alternate Pin Name Alternate Description Alternate Type
P1.0 I/O AN0 Analog input 0 I
P1.1 I/O AN1 Analog input 1 I
P1.2 I/O ECI
AN2 EWC external clock input
Analog input 2 I
I
P1.3 I/O CEX0
AN3 EWC module 0 Capture input/PWM output
Analog input 3 I/O
I
P1.4 I/O CEX1 EWC module 1 Capture input/PWM output I/O
P1.5 I/O PMI0
CEX2 PMU input 0
EWC module 2 Capture input/PWM output I
I/O
P1.6 I/O PMI1
CEX3 PMU input 1
EWC module 3 Capture input/PWM output I
I/O
P1.7 I/O A17
PMI2
CEX4
Address line 17
PMU input 2
EWC module 4 Capture input/PWM output
I/O
I
I/O
Pin Name Type Alternate Pin Name Alternate Description Alternate Type
P2.0 I/O A8 Address line 8 (Non–page mode)
Address/Data line 8 (Page mode) I/O
P2.1 I/O A9 Address line 9 (Non–page mode)
Address/Data line 9 (Page mode) I/O
P2.2 I/O A10 Address line 10 (Non–page mode)
Address/Data line 10 (Page mode) I/O
P2.3 I/O A11 Address line 11 (Non–page mode)
Address/Data line 11 (Page mode) I/O
P2.4 I/O A12 Address line 12 (Non–page mode)
Address/Data line 12 (Page mode) I/O
P2.5 I/O A13 Address line 13 (Non–page mode)
Address/Data line 13 (Page mode) I/O
P2.6 I/O A14 Address line 14 (Non–page mode)
Address/Data line 14 (Page mode) I/O
P2.7 I/O A15 Address line 15 (Non–page mode)
Address/Data line 15 (Page mode) I/O
TSC 80251A1
Rev. B (20/09/96) II. 2.3
Pin Name Type Alternate Pin Name Alternate Description Alternate Type
P3.0 I/O RXD Serial Port Receive Data input I
P3.1 I/O TXD Serial Port Transmit Data output O
P3.2 I/O INT0# External Interrupt 0 I
P3.3 I/O INT1# External Interrupt 1 I
P3.4 I/O T0 Timer 0 input I
P3.5 I/O T1 Timer 1 input I
P3.6 I/O WR# Write signal to external memory O
P3.7 I/O RD#
A16 Read signal to external memory
Address line 16 O
I/O
Notes:
EWC = Event Waveform Controller
PMU = Pulse Measurement Unit
PWM = Pulse Width Modulation
2.2. I/O Configurations
Each Port SFR operates via type–D latches, as illustrated in Figure 2.1. for Ports 1 and 3. A CPU
“write to latch” signal initiates transfer of internal bus data into the type–D latch. A CPU “read latch”
signal transfers the latched Q output onto the internal bus. Similarly , a “read pin” signal transfers the
logical level of the Port pin. Some Port data instructions activate the “read latch” signal while others
activate the “read pin” signal. Latch instructions are referred to as Read–Modify–W rite instructions
(See “Read–Modify–Write Instructions” paragraph). Each I/O line may be independently
programmed as input or output.
2.3. Port 1 and Port 3
Figure 2.1. shows the structure of Ports 1 and 3, which have internal pull–ups. An external source
can pull the pin low. Each Port pin can be configured either for general–purpose I/O or for its alternate
input or output function (See Table 2.1. ).
To use a pin for general–purpose output, set or clear the corresponding bit in the Px register (x = 1
or 3). To use a pin for general–purpose input, set the bit in the Px register. This turns off the output
driver FET.
To configure a pin for its alternate function, set the bit in the Px register. When the latch is set, the
“alternate output function” signal controls the output level (See Figure 2.1. ). The operation of Ports
1 and 3 is discussed further in “Quasi–Bidirectional Port Operation” paragraph.
TSC 80251A1
Rev. B (20/09/96)
II. 2.4
Read
Latch
Internal
Bus
Write to
Latch
Read
Pin Alternate
Input
Function
Alternate
Output
Function
Internal
pull–up
VDD
DQ
CL Q#
P1.x
P3.x
Latch
P3.x
P1.x
Figure 2.1. Port 1 and Port 3 structure
2.4. Port 0 and Port 2
Ports 0 and 2 are used for general–purpose I/O or as the external address/data bus. Port 0, shown in
Figure 2.2. , differs from the other Ports in not having internal pull–ups. Figure 2.3. shows the
structure of Port 2. An external source can pull a Port 2 pin low.
To use a pin for general–purpose output, set or clear the corresponding bit in the Px register (x = 0
or 2). T o use a pin for general–purpose input set the bit in the Px register to turn of f the output driver
FET.
DQ
CL Q#
Read
Latch
Internal
Bus
Write to
Latch
Read
Pin
Address
Data
P0.x
Latch
VDD
P0.x
Control
1
0
Figure 2.2. Port 0 structure
TSC 80251A1
Rev. B (20/09/96) II. 2.5
DQ
CL Q#
Read
Latch
Internal
Bus
Write to
Latch
Read
Pin
Address Data
P2.x
Latch
VDD
P2.x
Control
1
0
Figure 2.3. Port 2 structure
When Port 0 and Port 2 are used for an external memory cycle, an internal control signal switches
the output–driver input from the latch output to the internal address/data line. “External Memory
Access” paragraph discusses the operation of Port 0 and Port 2 as the external address/data bus.
Notes:
Port 0 and Port 2 are precluded from use as general purpose I/O Ports when used as address/data bus drivers.
Port 0 internal pull–ups assist the logic–one output for memory bus cycles only. Except for these bus cycles, the
pull–up FET is off. All other Port 0 outputs are open–drain.
2.5. Read–Modify–W rite Instructions
Some instructions read the latch data rather than the pin data. The latch based instructions read the
data, modify the data and then rewrite the latch. These are called “Read–Modify–Write” instructions.
Below is a complete list of these special instructions. When the destination operand is a Port or a Port
bit, these instructions read the latch rather than the pin:
Instruction Description Example
ANL logical AND ANL P1,A
ORL logical OR ORL P2,A
XRL logical EX–OR XRL P3,A
JBC jump if bit = 1 and clear bit JBC P1.1, LABEL
CPL complement bit CPL P3.0
INC increment INC P2
TSC 80251A1
Rev. B (20/09/96)
II. 2.6
ExampleDescriptionInstruction
DEC decrement DEC P2
DJNZ decrement and jump if not zero DJNZ P3, LABEL
MOV Px.y, C move carry bit to bit y of Port x MOV P1.5, C
CLR Px.y clear bit y of Port x CLR P2.4
SET Px.y set bit y of Port x SET P3.3
It is not obvious the last three instructions in this list are Read–Modify–Write instructions. These
instructions read the Port (all 8 bits), modify the specifically addressed bit and write the new byte
back to the latch. These Read–Modify–Write instructions are directed to the latch rather than the pin
in order to avoid possible misinterpretation of voltage (and therefore, logic) levels at the pin. For
example, a Port bit used to drive the base of an external bipolar transistor cannot rise above the
transistor’s base–emitter junction voltage (a value lower than VIL). With a logic one written to the
bit, attempts by the CPU to read the Port at the pin are misinterpreted as logic zero. A read of the
latch rather than the pin returns the correct logic–one value.
2.6. Quasi–Bidir ectional Port Operation
Port 1, Port 2 and Port 3 have fixed internal pull–ups and are referred to as “quasi–bidirectional”
Ports. When configured as an input, the pin impedance appears as logic one and sources current in
response to an external logic zero condition. Port 0 is a “true bidirectional” pin. The pin floats when
configured as input. Resets write logical one to all Port latches. If logical zero is subsequently written
to a Port latch, it can be returned to input conditions by a logical one written to the latch.
Read Port Pin
VDD VDD VDD
2 Osc. Periods
Input data
Q#
from
Port
Latch
p1 p2 p3
n
Figure 2.4. Internal pull–up configurations
Note:
Port latch values change near the end of Read–Modify–Write instruction cycles. Output buffers (and therefore the
pin state) update early in the instruction after the Read–Modify–Write instruction cycle.
TSC 80251A1
Rev. B (20/09/96) II. 2.7
Logical zero–to–one transitions in Port 1, Port 2 and Port 3 use an additional pull–up to aid this logic
transition (See Figure 2.4. ). This increases switch speed. The extra pull–up briefly sources 100 times
normal internal circuit current. The internal pull–ups are field–effect transistors rather than linear
resistors. Pull–ups consist of three p–channel FET (pFET) devices. A pFET is on when the gate
senses logical zero and off when the gate senses logical one. pFET #1 is turned on for two oscillator
periods immediately after a zero–to–one transition in the Port latch. A logical one at the Port pin turns
on pFET #3 (a weak pull–up) through the inverter . This inverter and pFET pair form a latch to drive
logical one. pFET #2 is a very weak pull–up switched on whenever the associated nFET is switched
off. This is traditional CMOS switch convention. Current strengths are 1/10 that of pFET #3.
2.7. Port Loading
Output buffers of Port 1, Port 2 and Port 3 can each sink 1.6 mA at logic zero. These Port pins can
be driven by open–collector and open–drain devices. Logic zero–to–one transitions occur slowly as
limited current pulls the pin to a logic–one condition (See Figure 2.4. ). A logic–zero input turns off
pFET #3. This leaves only pFET #2 weakly in support of the transition. In external bus mode, Port
0 output buffers each sink 3.2 mA at logic zero. However, the Port 0 pins require external pull–ups
to drive external gate inputs. External circuits must be designed to limit current requirements to these
conditions.
2.8. External Memory Access
The external bus structure is different for page mode and non–page mode. In non–page mode (used
by 80C51 microcontrollers), Port 2 outputs the upper address byte; the lower address byte and the
data are multiplexed on Port 0. In page mode, the upper address byte and the data are multiplexed
on Port 2, while Port 0 outputs the lower address byte.
The TSC80251A1 CPU writes FFh to the Port 0 register for all external memory bus cycles. This
overwrites previous information in Port 0. In contrast, the Port 2 register is unmodified for external
bus cycles. When address bits or data bits are not on the Port 2 pins, the bit values in Port 2 appear
on the Port 2 pins.
In non–page mode, Port 0 uses a strong internal pull–up FET to output ones or a strong internal
pull–down FET to output zeros for the lower address byte and the data. Port 0 is in a high–impedance
state for data input. In page mode, Port 0 uses a strong internal pull–up FET to output ones or a strong
internal pull–down FET to output zeros for the lower address byte or a strong internal pull–down
FET to output zeros for the upper address byte.
In non–page mode, Port 2 uses a strong internal pull–up FET to output ones or a strong internal
pull–down FET to output zeros for the upper address byte. In page mode, Port 2 uses a strong internal
pull–up FET to output ones or a strong internal pull–down FET to output zeros for the upper address
byte and data. Port 2 is in a high–impedance state for data input.
Note:
In external bus mode Port 0 outputs do not require external pull–ups.
There are two types of external memory accesses: external program memory and external data
memory. External program memories use signal PSEN# as a read strobe. 80C51 microcontrollers
TSC 80251A1
Rev. B (20/09/96)
II. 2.8
use RD# (read) or WR# (write) to strobe memory for data accesses. Depending on its RD0 and RD1
configuration bits, the TSC80251A1 uses PSEN# or RD# for data reads (See “Configuration bits
RD0 and RD1”).
During instruction fetches, external program memory can transfer instructions with 16–bit addresses
for binary compatible code or with the external bus configured for extended memory addressing
(17–bit or 18–bit).
External data memory transfers use an 8–bit, 16–bit, 17–bit or 18–bit address bus, depending on the
instruction and the configuration of the external bus. T able 2.2. lists the instructions that can be used
for the these bus widths.
Table 2.2. Instructions for external data moves
Bus width Instructions
8MOVX @Ri
MOV @Rm
MOV dir8
16 MOVX @DPTR
MOV @WRj
MOV @WRj+dis
MOV dir16
17 MOV @DRk
MOV @DRk+dis
18 MOV @DRk
MOV @DRk+dis
Note:
Avoid MOV P0 instructions for external memory accesses. These instructions can corrupt input code bytes at
Port 0.
External signal ALE (address latch enable) facilitates external address latch capture. The address
byte is valid after the ALE pin drives VOL . For write cycles, valid data is written to Port 0 just prior
to the write pin (WR#) asserting VOL . Data remains valid until WR# is undriven. For read cycles,
data returned from external memory must appear at Port 0 before the read pin (RD#) is undriven.
Waits states, by definition, affect bus–timing.
TSC 80251A1
Rev. B (20/09/96) II. 3.1
3.1. Introduction
The TSC80251A1 contains two general–purpose, 16–bit Timers/Counters. Although they are
identified as Timer 0 and Timer 1, you can independently configure each to operate in a variety of
modes as a Timer or as an event Counter. Each Timer employs two 8–bit Timer registers, used
separately or in cascade, to maintain the count. Timer registers and associated control and capture
registers are implemented as addressable special function registers (SFRs). Table 3.1. briefly
describes the SFRs referred to in this chapter . T wo of the SFRs provide programmable control of the
Timers as follows:
Timer/Counter Mode Control register (TMOD).
Timer/Counter Control register (TCON) for Timer 0 and Timer 1.
These registers are described at the end of this chapter.
Table 3.1. Timer/Counter SFRs
Mnemonic Description Address
TL0
TH0 Timer 0 registers
Used separately as two 8–bit Counters or in cascade as one 16–bit Counter.
Counts an internal clock signal with frequency FOSC /12 (Timer operation)
or an external input (event Counter operation).
S:8Ah
S:8Ch
TL1
TH1 Timer 1 registers
Used separately as two 8–bit Counters or in cascade as one 16–bit Counter.
Counts an internal clock signal with frequency FOSC /12 (Timer operation)
or an external input (event Counter operation).
S:8Bh
S:8Dh
TCON Timer 0/1 Control register
Contains the run control bits, overflow flags, interrupt flags and interrupt
type control bits for Timer 0 and Timer 1.
S:88h
TMOD Timer 0/1 Mode Control register
Contains the mode select bits, Counter/Timer select bits and external control
gate bits for Timer 0 and Timer 1.
S:89h
Timers/Counters
TSC 80251A1
Rev. B (20/09/96)
II. 3.2
Table 3.2. describes the external signals referred to in this chapter.
Table 3.2. External signals
Mnemonic Type Description Multiplexed
With
INT0# I External Interrupt 0
This input sets the IE0 interrupt flag in TCON register. IT0 selects the
triggering method: IT0 = 1 selects edge–triggered (high–to–low);
IT0 = 0 selects level–triggered (active low). INT0# also serves as
external run control for Timer 0, when selected by GATE0 bit in
TCON register.
P3.2
INT1# I External Interrupt 1
This input sets the IE1 interrupt flag in TCON register. IT1 selects the
triggering method: IT1 = 1 selects edge–triggered (high–to–low);
IT1 =0 selects level–triggered (active low). INT1# also serves as
external run control for Timer 1, when selected by GATE1 bit in
TCON register.
P3.3
T0 I Timer 0 External Clock Input
When Timer 0 operates as a Counter , a falling edge on the T0 pin
increments the count.
P3.4
T1 I Timer 1 External Clock Input
When Timer 1 operates as a Counter , a falling edge on the T1 pin
increments the count.
P3.5
3.2. Timer/Counter Operations
For example, a basic operation is T imer registers THx and TLx (x = 0 or 1) connected in cascade to
form a 16–bit Timer. Setting the run control bit (TRx) turns the Timer on by allowing the selected
input to increment TLx. When TLx overflows it increments THx; when THx overflows it sets the
T imer overflow flag (TFx) in TCON register. Setting the run control bit does not clear the THx and
TLx Timer registers. Timer registers can be accessed to obtain the current count or to enter preset
values. Timer 0 and Timer 1 can also be controlled by external pin INTx# to facilitate pulse width
measurements.
The C\Tx# control bit selects T imer operation or Counter operation by selecting the divided–down
system clock or external pin Tx as the source for the counted signal.
For Timer operation (C/Tx# = 0), the Timer register counts the divided–down system clock. The
T imer register is incremented once every peripheral cycle, i.e. once every six states. Since six states
equals 12 oscillator periods (clock cycles), the Timer clock rate is FOSC /12.
For Counter operation (C/Tx# = 1), the Timer register counts the negative transitions on the Tx
external input pin. When the sample of the external inputs is high in one cycle and low in the next,
the Counter is incremented. Since it takes 12 states (24 oscillator periods) to recognize a negative
transition, the maximum count rate is 1/24 of the oscillator frequency. There are no restrictions on
TSC 80251A1
Rev. B (20/09/96) II. 3.3
the duty cycle of the external input signal, but to ensure that a given level is sampled at least once
before it changes, it should be held for at least one full peripheral cycle.
3.3. Timer 0
Timer 0 functions as either a Timer or event Counter in four modes of operation. Figure 3.1. ,
Figure 3.3. and Figure 3.4. show the logical configuration of each mode.
Timer 0 is controlled by the four low–order bits of TMOD register (See Figure 3.6. ) and bits 0, 1,
4 and 5 of TCON register (See Figure 3.5. ). TMOD register selects the method of Timer gating
(GATE0), Timer or Counter operation (T/C0#), and mode of operation (M10 and M00). TCON
register provides Timer 0 control functions: overflow flag (TF0), run control bit (TR0), interrupt flag
(IE0), and interrupt type control bit (IT0).
For normal Timer operation (GATE0 = 0), setting TR0 allows TL0 to be incremented by the selected
input. Setting GATE0 and TR0 allows external pin INT0# to control T imer operation. This setup can
be used to make pulse width measurements.
Timer 0 overflow (count rolls over from all 1s to all 0s) sets TF0 flag generating an interrupt request.
3.3.1. Mode 0 (13–bit Timer)
Mode 0 configures T imer 0 as an 13–bit Timer which is set up as an 8–bit T imer (TH0 register) with
a modulo 32 prescaler implemented with the lower five bits of TL0 register (See Figure 3.1. ). The
upper three bits of TL0 register are indeterminate and should be ignored. Prescaler overflow
increments TH0 register.
OSC 12
C/Tx = 0
C/Tx = 1
Tx
TRx
GATEx
INTx#
THx
(8 bits) TFx Timer Interrupt x
OVERFLOW
TLx
(5 bits)
Figure 3.1. Timer/Counter x (x = 0 or 1) in mode 0 and mode 1
TSC 80251A1
Rev. B (20/09/96)
II. 3.4
3.3.2. Mode 1 (16–bit Timer)
Mode 1 configures Timer 0 as a 16–bit Timer with TH0 and TL0 connected in cascade (See
Figure 3.2. ). The selected input increments TL0.
OSC 12
C/Tx = 0
C/Tx = 1
Tx
TRx
GATEx
INTx#
THx
(8 bits) TFx Timer Interrupt x
OVERFLOW
TLx
(8 bits)
Figure 3.2. Timer/Counter x (x = 0 or 1) in mode 1
3.3.3. Mode 2 (8–bit Timer with Auto–Reload)
Mode 2 configures Timer 0 as an 8–bit Timer (TL0 register) that automatically reloads from TH0
register (See Figure 3.3. ). TL0 overflow sets TF0 flag in TCON register and reloads TL0 with the
contents of TH0, which is preset by software. When the interrupt request is serviced, hardware clears
TF0. The reload leaves TH0 unchanged.
OSC 12
C/Tx = 0
C/Tx = 1
Tx
GATEx
INTx#
CONTROL
TLx
(8 bits)
THx
(8 bits)
TFx Timer Interrupt x
RELOAD
TRx
Figure 3.3. Timer/Counter x (x = 0 or 1) in mode 2
TSC 80251A1
Rev. B (20/09/96) II. 3.5
3.3.4. Mode 3 (Two 8–bit Timers)
Mode 3 configures Timer 0 such that registers TL0 and TH0 operate as separate 8–bit T imers (See
Figure 3.4. ). This mode is provided for applications requiring an additional 8–bit Timer or Counter .
TL0 uses the Timer 0 control bits C/T0# and GATE0 in TMOD register , and TR0 and TF0 in TCON
register in the normal manner. TH0 is locked into a Timer function (counting FOSC /12) and takes
over use of the Timer 1 interrupt (TF1) and run control (TR1) bits. Thus, operation of Timer 1 is
restricted when Timer 0 is in mode 3.
OSC 12 C/T0 = 0
C/T0 = 1
T0
GATE0
INT0#
CONTROL
TL0
(8 bits)
TR0
TF0 Timer Interrupt 0
CONTROL
TF1
TH0
(8 bits)
TR1
OSC 12 Timer Interrupt 1
Figure 3.4. Timer/Counter in mode 3 : Two 8-bit Counters
3.4. Timer 1
Timer 1 functions as either a Timer or event Counter in three modes of operation. Figure 3.1. and
Figure 3.3. show the logical configuration for modes 0, 1, and 2. T imer 1’s mode 3 is a hold–count
mode.
T imer 1 is controlled by the four high–order bits of TMOD register (See Figure 3.6. ) and bits 2, 3,
6 and 7 of TCON register (See Figure 3.5. ). TMOD register selects the method of Timer gating
(GATE1), Timer or Counter operation (C/T1#), and mode of operation (M11 and M01). TCON
register provides Timer 1 control functions: overflow flag (TF1), run control bit (TR1), interrupt flag
(IE1), and interrupt type control bit (IT1).
Timer 1 operation in modes 0, 1 and 2 is identical to Timer 0. Timer 1 can serve as the Baud Rate
Generator for the Serial Port. Mode 2 is best suited for this purpose.
For normal Timer operation (GATE1 = 0), setting TR1 allows T imer register TL1 to be incremented
by the selected input. Setting GATE1 and TR1 allows external pin INT1# to control Timer operation.
This setup can be used to make pulse width measurements.
TSC 80251A1
Rev. B (20/09/96)
II. 3.6
Timer 1 overflow (count rolls over from all 1s to all 0s) sets the TF1 flag generating an interrupt
request.
When T imer 0 is in mode 3, it uses Timer 1’ s overflow flag (TF1) and run control bit (TR1). For this
situation, use Timer 1 only for applications that do not require an interrupt (such as a Baud Rate
Generator for the Serial Port) and switch Timer 1 in and out of mode 3 to turn it off and on.
3.4.1. Mode 0 (13–bit Timer)
Mode 0 configures T imer 1 as a 13–bit T imer , which is set up as an 8–bit T imer (TH1 register) with
a modulo–32 prescaler implemented with the lower 5 bits of the TL1 register (See Figure 3.1. ). The
upper 3 bits of TL1 register are ignored. Prescaler overflow increments TH1 register.
3.4.2. Mode 1 (16–bit Timer)
Mode 1 configures Timer 1 as a 16–bit Timer with TH1 and TL1 connected in cascade (See
Figure 3.2. ). The selected input increments TL1.
3.4.3. Mode 2 (8–bit Timer with Auto–Reload)
Mode 2 configures Timer 1 as an 8–bit Timer (TL1 register) with automatic reload from TH1 register
on overflow (See Figure 3.3. ). Overflow from TL1 sets overflow flag TF1 in TCON register and
reloads TL1 with the contents of TH1, which is preset by software. The reload leaves TH1
unchanged.
3.4.4. Mode 3 (Halt)
Placing T imer 1 in mode 3 causes it to halt and hold its count. This can be used to halt Timer 1 when
TR1 run control bit is not available, i.e. when Timer 0 is in mode 3.
TSC 80251A1
Rev. B (20/09/96) II. 3.7
3.5. Registers
TCON (088h)
Timer/Counter Control register
TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0
76543210
Bit
Number Bit
Mnemonic Description
7 TF1 Timer 1 Overflow flag
Cleared by hardware when processor vectors to interrupt routine.
Set by hardware on Timer/Counter overflow.
6 TR1 Timer 1 Run Control bit
Clear to turn off Timer/Counter 1.
Set to turn on Timer/Counter 1.
5 TF0 Timer 0 Overflow flag
Cleared by hardware when processor vectors to interrupt routine.
Set by hardware on Timer/Counter overflow.
4 TR0 Timer 0 Run Control bit
Clear to turn off Timer/Counter 0.
Set to turn on Timer/Counter 0.
3 IE1 Interrupt 1 Edge flag
Cleared by hardware when interrupt is processed if edge-triggered (See IT1).
Set by hardware when external interrupt is detected out INT1# pin.
2 IT1 Interrupt 1 Type Control bit
Clear to select low level active (level triggered) for external interrupt 1.
Set to select falling edge active (edge triggered) for external interrupt 1.
1 IE0 Interrupt 0 Edge flag
Cleared by hardware when interrupt is processed if edge-triggered (See IT0).
Set by hardware when external interrupt is detected out INT0# pin.
0 IT0 Interrupt 0 Type Control bit
Clear to select low level active (level triggered) for external interrupt 0.
Set to select falling edge active (edge triggered) for external interrupt 0.
Reset value = 0000 0000B
Figure 3.5. TCON register
TSC 80251A1
Rev. B (20/09/96)
II. 3.8
TMOD (089h)
Timer/Counter Mode register
GATE1 C/T1# M11 M01 GATE0 C/T0# M10 M00
76543210
Bit
Number Bit
Mnemonic Description
7 GATE1 Timer 1 Gating Control bit
Clear to enable Timer 1 whenever TR1 bit is set.
Set to enable Timer/Counter 1 only while INT1# pin is high and TR1 bit is set.
6 C/T1# Timer 1 Counter/Timer Select bit
Cleared for Timer operation (input from internal system clock).
Set for Counter operation (input from T1 input pin).
5 M11 Timer 1 Mode Select bits
M11 M01 Operating mode
0 0 Mode 0: 8–bit Timer/Counter (TH1) with 5–bit prescalar (TL1)
0 1 Mode 1: 16 bit Timer/Counter
4 M01 0 1 Mode 1: 16–bit Timer/Counter
1 0 Mode 2: 8–bit auto–reload Timer/Counter (TL1). Reloaded from
TH1 at overflow
1 1 Mode 3: Timer 1 halted. Retains count.
3 GATE0 Timer 0 Gating Control bit
Clear to enable Timer 0 whenever TR0 bit is set.
Set to enable Timer/Counter 0 only while INT0# pin is high and TR0 bit is set.
2 C/T0# Timer 0 Counter/Timer Select bit
Cleared for Timer operation (input from internal system clock)
Set for Counter operation (input from T0 input pin).
1 M10 Timer 0 Mode Select bit
M10 M00 Operating mode
0 0 Mode 0: 8–bit Timer/Counter (TH0) with 5–bit prescalar (TL0).
0 1 Mode 1: 16–bit Timer/Counter.
0 M00
0 1 Mode
1:
16 bit
Timer/Counter
.
1 0 Mode 2: 8–bit auto–reload Timer/Counter (TL0). Reloaded from
TH0 at overflow.
1 1 Mode 3: TL0 is an 8–bit timer/counter. TH0 is an 8–bit timer using
timer 1’s TR1 and TF1 bits.
Reset value = 0000 0000B
Figure 3.6. TMOD register
TSC 80251A1
Rev.B (20/09/96) II. 4.1
4.1. Introduction
This chapter provides instructions on programming the Serial Port and generating the Serial I/0 Baud
Rates with Timer 1 and the internal Baud Rate Generator. The Serial Input/Output Port supports
communication with modems and other external peripheral devices.
The Serial Port provides both synchronous and asynchronous communication modes. It operates as
a Universal Asynchronous Receiver and Transmitter (UAR T) in three full–duplex modes (Modes 1,
2 and 3). Asynchronous transmission and reception can occur simultaneously and at different Baud
Rates. The UART supports framing–bit error detection, overrun error detection, multiprocessor
communication, and automatic address recognition. The Serial Port also operates in a single
synchronous mode (Mode 0).
The synchronous mode (Mode 0) operates either at a single Baud Rate (80C51 compatibility) or at
a variable Baud Rate with an independent and internal Baud Rate Generator. Mode 2 can operate at
two Baud Rates. Modes 1 and 3 operate over a wide range of Baud Rates, which are generated by
Timer 1 and internal Baud Rate Generator.
The Serial Port signals are defined in Table 4.1. and the Serial Port special function registers are
described in Table 4.2. Figure 4.1. is a block diagram of the Serial Port.
Table 4.1. Serial Port signals
Name Type Description Multiplexed with
TXD O Transmit Data
In mode 0, TXD transmits the clock signal.
In modes 1, 2 and 3, TXD transmits serial data.
P3.1
RXD I/O Receive Data
In mode 0, RXD transmits and receives serial data.
In mode 1,2 and 3, RXD receives serial data.
P3.0
For the three asynchronous modes, the UART transmits on the TXD pin and receives on the RXD
pin. For the synchronous mode (Mode 0), the UART outputs a clock signal on the TXD pin and sends
and receives messages on the RXD pin (See Figure 4.1. ). SBUF register, which holds received bytes
and bytes to be transmitted, actually consists of two physically different registers. To send, software
writes a byte to SBUF; to receive, software reads SBUF. The receive shift register allows reception
of a second byte before the first byte has been read from SBUF. However , if software has not read
the first byte by the time the second byte is received, the second byte will overwrite the first. The
UAR T sets interrupt bits TI and RI on transmission and reception, respectively . These two bits share
a single interrupt request and interrupt vector.
Table 4.2. Serial Port SFRs
Mnemonic Description Address
SBUF Serial Buffer
Two separate registers comprise the SBUF register. Writing to SBUF loads the
transmit buffer and reading SBUF accesses the receive buffer.
S:99h
Serial I/O Port
TSC 80251A1
Rev.B (20/09/96)
II. 4.2
AddressDescriptionMnemonic
SCON Serial Port Control register
Selects the Serial Port operating mode. SCON enables and disables the receiver,
framing bit error detection, overrun error detection, multiprocessor
communication, automatic address recognition and the Serial Port interrupt bits.
S:98h
SADDR Serial Address
Defines the individual address for a slave device connected on the serial lines. S:0A9h
SADEN Serial Address Enable register
Specifies the mask byte that is used to define the given address for a slave
device.
S:0B9h
BDRCON Baud Rate Control register
Enables and configures the internal Baud Rate register. S:09Bh
BRL Baud Rate Reload register
Contains the auto–reload value of the Baud Rate Generator. S:09Ah
TXD
RXD
SBUF
Transmitter
SBUF
Receiver
IB Bus
Mode 0 Transmit
Receive
Shift register
Load SBUF
Read SBUF
Write SBUF
SCONRI TI
Interrupt Request
Serial Port
Figure 4.1. Serial Port block diagram
TSC 80251A1
Rev.B (20/09/96) II. 4.3
4.2. Modes of Operation
The Serial Port can operate in one synchronous and three asynchronous modes.
4.3. Synchronous Mode (Mode 0)
Mode 0 is a half–duplex, synchronous mode, which is commonly used to expand the I/0 capabilities
of a device with shift registers. The transmit data (TXD) pin outputs a set of eight clock pulses while
the receive data (RXD) pin transmits or receives a byte of data. The 8–bit data are transmitted and
received least–significant bit (LSB) first. Shifts occur in the last phase (S6P2) of every peripheral
cycle, which corresponds to a Baud Rate of FOSC/12. Figure 4.2. shows the timing for transmission
and reception in mode 0.
D0 D1 D2 D7
D6
S6P2
S3P1 S6P1
TxD
Write to
SBUF
S6P2 S6P2 S6P2 S6P2
Shift
RxD
S6P2
Transmit
TI
S1P1
Receive
TxD
S3P1 S6P1
Set REN, Clear RI
Write to
SCON
S6P2 S6P2 S6P2 S6P2
Shift
S5P2
D0 D1 D6 D7
RxD
RI
Figure 4.2. Mode 0 timings
TSC 80251A1
Rev.B (20/09/96)
II. 4.4
4.3.1. Transmission (Mode 0)
Follow these steps to begin a transmission:
DWrite to SCON register clearing bits SM0, SM1 and REN.
DWrite the byte to be transmitted to the SBUF register. This write starts the transmission.
Hardware executes the write to SBUF in the last phase (S6P2) of a peripheral cycle. At S6P2 of the
following cycle, hardware shifts the LSB (D0) onto the RXD pin. At S3P1 of the next cycle, the TXD
pin goes low for the first clock–signal pulse. Shifts continue every peripheral cycle. In the ninth cycle
after the write to SBUF, the MSB (D7) is on the RXD pin. At the beginning of the 10th cycle,
hardware drives the RXD pin high and asserts TI to indicate the end of the transmission.
4.3.2. Reception (Mode 0)
To start a reception in mode 0, write to the SCON register. Clear bits SM0, SM1 and RI and set the
REN bit.
Hardware executes the write to SCON in the last phase (S6P2) of a peripheral cycle (See
Figure 4.2. ). In the second peripheral cycle clock–signal pulse, and the LSB (D0) is sampled on the
RXD pin at S5P2. The D0 bit is then shifted into the shift register . After eight shifts at S6P2 of every
peripheral cycle, the LSB (D7) is shifted into the shift register, and hardware asserts RI to indicate
acompleted reception. Software can then read the received byte from SBUF.
4.4. Asynchronous Modes (Modes 1, 2 and 3)
The Serial Port has three asynchronous modes of operation:
DMode 1
Mode 1 is a full–duplex, asynchronous mode. The data frame (See Figure 4.3. ) consists of 10 bits:
one start, eight data bits, and one stop bit. Serial data is transmitted on the TXD pin and received
on the RXD pin. When a message is received, the stop bit is read in the RB8 bit in SCON register .
The Baud Rate is generated either by overflow of timer 1 or by overflow of the internal Baud Rate
Generator (see “Baud Rate Generator” paragraph).
DModes 2 and 3
Modes 2 and 3 are full–duplex, asynchronous modes. The data frame (See Figure 4.3. ) consists
of 1 1–bit: one start bit, 8–bit data (transmitted and received LSB first), one programmable ninth
data bit, and one stop bit. Serial data is transmitted on the TXD pin and received on the RXD pin.
On receive, the ninth bit is read from RB8 bit in SCON register. On transmit, the ninth data bit
is written to TB8 bit in SCON register. (Alternatively, you can use the ninth bit as a command/data
flag.)
GIn mode 2, the Baud Rate is programmable to 1/32 or 1/64 of the oscillator frequency.
GIn mode 3, the Baud Rate is generated either by overflow of Timer 1 or by overflow of internal
Baud Rate Generator.
TSC 80251A1
Rev.B (20/09/96) II. 4.5
Start
Start
D0 D1 D2 D3 D4 D5 D5 D6 D7
D0 D1 D2 D3 D4 D5 D5 D6 D7 D8
8–bit data
9–bit data
Stop
Stop
Mode 1
Mode 2 and 3
Figure 4.3. Data frames (Modes 1, 2 and 3)
4.4.1. Transmission (Modes 1, 2 and 3)
Follow these steps to initiate a transmission:
Write to SCON register. Select the mode with SM0 and SM1 bits and clear REN bit. For modes
2 and 3, also write the ninth bit to TB8 bit.
Write the byte to be transmitted to SBUF register. This write starts the transmission.
4.4.2. Reception (Modes 1, 2 and 3)
To prepare for a reception, set REN bit in SCON register. The actual reception is then initiated by
a detected high–to–low transition on the RXD pin.
4.5. Framing Bit Error Detection (Modes 1, 2 and 3)
Framing bit error detection is provided for the three asynchronous modes. To enable the framing bit
error detection feature, set SMOD0 bit in PCON register . When this feature is enabled, the receiver
checks each incoming data frame for a valid stop bit. An invalid stop bit may result from noise on
the serial lines or from simultaneous transmission by two CPUs. If a valid stop bit is not found, the
software sets FE bit in SCON register.
Software may examine FE bit after each reception to check for data errors. Once set, only software
or a reset clear FE bit. Subsequently received frames with valid stop bits cannot clear FE bit.
4.6. Overrun Error Detection (Modes 1, 2 and 3)
Overrun error detection is provided for the three asynchronous modes. To enable the overrun error
detection feature, set SMOD0 bit in PCON register.
TSC 80251A1
Rev.B (20/09/96)
II. 4.6
This error occurs when a character received and not read by the CPU is overwritten by a new one.
Figure 4.4. shows an example of Overrun Error.
Character 1 Character 2
RXD
RI
OVR
Character 1 is overwritten
by the Character 2
Figure 4.4. Overrun Error (Modes 1, 2 and 3)
In this example Character 1 is received and RI is set. Then a second Character is sent before the CPU
has read the first one. The First Character is overwritten by Character 2 and the Overrun Error bit
(OVR) is set in SCON register to indicate the error.
4.7. Multiprocessor Communication (Modes 2 and 3)
Modes 2 and 3 provide a ninth–bit mode to facilitate multiprocessor communication. To enable this
feature, set SM2 bit in SCON register. When the multiprocessor communication feature is enabled,
the Serial Port can differentiate between data frames (ninth bit clear) and address frames (ninth bit
set). This allows the microcontroller to function as a slave processor in an environment where
multiple slave processors share a single serial line.
When the multiprocessor communication feature is enabled, the receiver ignores frames with the
ninth bit clear. The receiver examines frames with the ninth bit set for an address match. If the
received address matches the slaves address, the receiver hardware sets RB8 and RI bits in SCON
register, generating an interrupt.
Note:
ES bit must be set in IE register to allow RI bit to generate an interrupt.
The addressed slave’s software then clears SM2 bit in SCON register and prepares to receive the data
bytes. The other slaves are unaffected by these data bytes because they are waiting to respond to their
own address.
4.8. Automatic Address Recognition
The automatic address recognition feature is enabled when the multiprocessor communication
feature is enabled (SM2 bit in SCON register is set).
Implemented in hardware, automatic address recognition enhances the multiprocessor
communication feature by allowing the Serial Port to examine the address of each incoming
TSC 80251A1
Rev.B (20/09/96) II. 4.7
command frame. Only when the Serial Port recognizes its own address, the receiver sets RI bit in
SCON register to generate an interrupt. This ensures that the CPU is not interrupted by command
frames addressed to other devices.
If desired, you may enable the automatic address recognition feature in mode 1. In this configuration,
the stop bit takes the place of the ninth data bit. Bit RI is set only when the received command frame
address matches the device’s address and is terminated by a valid stop bit.
Notes:
GThe multiprocessor communication and automatic address recognition features cannot be enabled in mode 0
(i.e, setting SM2 bit in SCON register in mode 0 has no effect).
To support automatic address recognition, a device is identified by a given address and a broadcast
address.
4.8.1. Given Address
Each device has an individual address that is specified in SADDR register; the SADEN register is
a mask byte that contains don’t–care bits (defined by zeros) to form the device’s given address. The
don’t–care bits provide the flexibility to address one or mores slaves at a time. The following
example illustrates how a given address is formed.
To address a device by its individual address, the SADEN mask byte must be 1111 1111B.
For example:
SADDR = 0101 0110B
SADEN = 1111 1100B
Given = 0101 01XXB
The following is an example of how to use given addresses to address different slaves:
Slave A: SADDR = 1111 0001B
SADEN = 1111 1010B
Given = 1111 0X0XB
Slave B: SADDR = 1111 0011B
SADEN = 1111 1001B
Given = 1111 0XX1B
Slave C: SADDR = 1111 0010B
SADEN = 1111 1101B
Given = 1111 00X1B
The SADEN byte is selected so that each slave may be addressed separately.
For slave A, bit 0 (the LSB) is a don’t–care bit; for slaves B and C, bit 0 is a 1. To communicate with
slave A only, the master must send an address where bit 0 is clear (e.g. 1111 0000B).
For slave A, bit 1 is a 0; for slaves B and C, bit 1 is a don’t care bit. To communicate with slaves A
and B, but not slave C, the master must send an address with bits 0 and 1 both set (e.g.
1111 0011B).
To communicate with slaves A, B and C, the master must send an address with bit 0 set , bit 1 clear ,
and bit 2 clear (e.g. 1111 0001B).
TSC 80251A1
Rev.B (20/09/96)
II. 4.8
4.8.2. Broadcast Address
A broadcast address is formed from the logical OR of the SADDR and SADEN registers with zeros
defined as don’t–care bits, e.g.:
SADDR = 0101 0110B
SADEN = 1111 1100B
(SADDR) or (SADEN) = 1111 111XB
The use of don’t–care bits provides flexibility in defining the broadcast address, however in most
applications, a broadcast address is 0FFh.
The following is an example of using broadcast addresses:
Slave A: SADDR = 1111 0001B
SADEN = 1111 1010B
Given = 1111 1X11B
Slave B: SADDR = 1111 0011B
SADEN = 1111 1001B
Given = 1111 1X11B
Slave C: SADDR = 1111 0010B
SADEN = 1111 1101B
Given = 1111 1111B
For slaves A and B, bit 2 is a don’t care bit; for slave C, bit 2 is set. To communicate with all of the
slaves, the master must send an address FFh.
To communicate with slaves A and B, but not slave C, the master can send and address FBh.
4.8.3. Reset Addresses
On reset, the SADDR and SADEN registers are initialized to 00h, i.e. the given and broadcast
addresses are XXXX XXXXB (all don’t–care bits). This ensures that the Serial Port is backwards
compatible with the 80C51 microcontrollers that do not support automatic address recognition.
4.9. Baud Rates
4.9.1. Internal Baud Rate Generator
The Baud Rate Control register (BDRCON, see Figure 4.9. is added to the TSC80251A1 derivatives
in order to manage the new functionality of the UART. Two Baud Rate Generators can supply the
transmission clock to the UART: Timer 1 and the internal Baud Rate Generator as detailed below
4.9.2. Baud Rate for Mode 0
The transmission clock is either the internal Baud Rate Generator or the internal fixed prescaler. This
selection is done by setting bit SRC in BDRCON register. The transmission clock is shown in
Figure 4.5.
TSC 80251A1
Rev.B (20/09/96) II. 4.9
By default, after a reset, the bit SRC is cleared and the transmission clock is compatible with 80C51
microcontrollers. Setting this bit to one, selects the internal Baud Rate Generator . The 8–bit register
BRL is the reload register of the Baud Rate Generator.
4.9.3. Transmission Clock Selection
DWhen SRC = 0, the Baud Rate is fully compatible with 80C51 microcontrollers. The 1/12 clock
frequency supplies the Baud Rate: Baud_Rate = FOSC/12
DWhen SRC = 1, the Baud Rate Generator is selected and is variable in two ranges:
GWhen SPD = 1, the Fast mode is selected: Baud_Rate = Fosc/[4x(256–BRL)]
GWhen SPD = 0, the Slow mode is selected: Baud_Rate = Fosc/[24x(256–BRL)].
SPD=0
BRR
SRC
SPD
OSC 26
2BRG
SPD=1
UART
SRC=0
SRC=1
BRL
Figure 4.5. Clock transmission sources in mode 0
4.9.4. Baud Rate for Modes 1 and 3
Two Baud Rate Generators can supply the Baud Rate to the UART: Timer 1 and the internal Baud
Rate Generator. It is possible to have two different transmission clocks for the transmission and
reception.
4.9.4.1. Timer 1
When T imer 1 is used as Baud Rate Generator , the Baud Rates in Modes 1 and 3 are determined by
the Timer 1 overflow and the value of SMOD1 as follows:
Mode 1 and 3,
Baud_Rate +2SMOD1 FOSC
12 32 [256 *(TH1)]
and if the Baud Rate is known the value of TH1 is:
TH1 +256 *2SMOD1 fOSC
384 Baud_Rate
The configuration is shown in Figure 4.6.
TSC 80251A1
Rev.B (20/09/96)
II. 4.10
T1
GATE0 Control
C/T1=1
TR1
INT0#
TL1
OSC 12
2SMOD1=0
SMOD1=1
TH1
TIMER1_BR
G
C/T1=0
SMOD1
Figure 4.6. Timer 1 as Baud Rate Generator in modes 1 and 3
4.9.4.2. Internal Baud Rate Generator
When the internal Baud Rate Generator is used, the Baud Rates are determined by the BRG overflow,
the value of SPD bit (Speed Mode) and the value of the SMOD1 bit (Serial Mode).
Baud_Rate +2SMOD1 FOSC
2 32 [256 *(BRL)]
BRL +256 *2SMOD1 FOSC
64 Baud_Rate
If the slow Mode is selected (SPD = 0, default mode), the Baud Rate is as follows:
Baud_Rate +2SMOD1 FOSC
12 32 [256 *(BRL)]
BRL +256 *2SMOD1 FOSC
384 Baud_Rate
The configuration is shown in the Figure 4.7.
OSC 2
BRR
SPD
6SPD=0
SPD=1 2SMOD1=0
SMOD1=1
BRL
BRG INT_BRG
SMOD1
Figure 4.7. Internal Baud Rate Generator in modes 1 and 3
Baud_Rate +2SMOD1 FOSC
64
TSC 80251A1
Rev.B (20/09/96) II. 4.11
4.9.4.3. Baud Rate Selection
The Baud Rate Generator for transmit and receive clocks can be selected separately via the BDRCON
register (See Figure 4.10. )
Figure 4.8. gives the configuration of RBCK and TBCK bits to select the source of RX Clock and
TX Clock.
16
16
RBCK = 1
TBCK = 1
TIMER1_BRG TX Clock
INT_BRG
TBCK
TBCK = 0
RX Clock
INT_BRG
RBCK
RBCK = 0
TIMER1_BRG
Figure 4.8. Baud Rate Generator selection
4.9.5. Baud Rate for Mode 2
The Baud Rate in mode 2 depends on the value of SMOD1 bit in PCON register. If SMOD1 = 0
(default value on reset), the Baud Rate is 1/64 the oscillator frequency . If SMOD1 = 1, the Baud Rate
is 1/32 the oscillator frequency.
The formula is given below:
The configuration is shown in Figure 4.9.
2
SMOD1 = 1
OSC 2
UART
SMOD1 = 0
SMOD1
16
Figure 4.9. UART in mode 2
TSC 80251A1
Rev.B (20/09/96)
II. 4.12
4.10. Registers
BDRCON (9Bh)
Baud Rate Control register
– – – BRR TBCK RBCK SPD SRC
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 BRR Baud Rate Run control bit
Clear to stop the Baud Rate
Set to start the Baud Rate
3 TBCK Transmission Baud Rate Generator Selection bit
Clear to select Timer 1 for the Baud Rate Generator
Set to select Internal Baud Rate Generator
2 RBCK Reception Baud Rate Generator Selection bit
Clear to select Timer 1 for the Baud Rate Generator
Set to select Internal Baud Rate Generator
1 SPD Baud Rate Speed control bit
Clear to select the SLOW Baud Rate Generator when SRC = 0
Set to select the FAST Baud Rate Generator when SRC = 1
0 SRC Baud Rate Sour ce select bit in MODE 0
= 1, selects the INTERNAL Baud Rate Generator,
= 0, selects teh 1/12 clock as the Baud Rate Generator (fixed transmission
clock in Mode 0)
Reset value = XXX0 0000B
Figure 4.10. BDRCON register
TSC 80251A1
Rev.B (20/09/96) II. 4.13
BRL (9Ah)
Baud Rate Reload register (8–bit)
76543210
Reset value = 0000 0000B Figure 4.11. BRL register
SADDR (0A9h)
Serial Address register
76543210
Reset value = 0000 0000B Figure 4.12. SADDR register
SADEN (0B9h)
Serial Address Enable register
76543210
Reset value = 0000 0000B Figure 4.13. SADEN register
SBUF (099h)
Serial Buffer register
76543210
Reset value = XXXX XXXXB Figure 4.14. SBUF register
TSC 80251A1
Rev.B (20/09/96)
II. 4.14
SCON (098h)
Serial Control register
FE/SM0 OVR/SM1 SM2 REN TB8 RB8 TI RI
76543210
Bit
Number Bit
Mnemonic Description
7 FE
SM0
Framing Error bit
To select this function, set SMOD0 bit in PCON register.
Set by hardware to indicate an invalid stop bit.
Must be cleared by software.
Serial Port Mode bit 0
To select this function, clear SMOD0 bit in PCON register.
Software writes to bits SM0 and SM1 to select the Serial Port operating mode.
Refer to SM1 bit for the mode selections.
6 OVR
SM1
Overrun error bit
To select this function, set SMOD0 bit in PCON register.
Set by hardware to indicate an overwrite of the receive buffer.
Must be cleared by software
Serial Port Mode bit 1
To select this function, clear SMOD0 bit in PCON register.
Software writes to bits SM1 and SMO to select the Serial Port operating mode.
SMO SM1 Mode Description Baud Rate
0 0 0 Shift register FOSC/12 or variable if SRC bit
BDRCON register is set
0 1 1 8–bit UART Variable
1 0 2 9–bit UART FOSC/32 or FOSC/64
1 1 3 9–bit UART Variable
5 SM2 Serial Port Mode bit 2
Software writes to bit SM2 to enable and disable the multiprocessor
communication and automatic address recognition features.
This allows the Serial Port to differentiate between data and command frames
and to recognize slave and broadcast addresses.
4 REN Receiver Enable bit
Clear to enable transmission. Set to enable reception.
3 TB8 Transmit bit 8
Modes 0 and 1: Not used.
Modes 2 and 3: Software writes the ninth data bit to be transmitted to TB8.
2 RB8 Receiver bit 8
Mode 0: Not used.
Mode 1 (SM2 cleared): Set or cleared by hardware to reflect the stop bit received.
Modes 2 and 3 (SM2 set): Set or cleared by hardware to reflect the ninth bit
received.
1 TI Transmit Interrupt flag
Set by the transmitter after the last data bit is transmitted.
Must be cleared by software.
0 RI Receive Interrupt flag
Set by the receiver after the stop bit of a frame has been received.
Must be cleared by software.
Reset value = 0000 0000B Figure 4.15. SCON register
TSC 80251A1
Rev. B (20/09/96) II. 5.1
5.1. Introduction
This chapter describes the Pulse Measurement Unit (PMU) which allows to measure the width and
the period of pulses. It is useful for each application using a smart analog sensor which provide a
Pulse Width Modulated information.
With standard peripherals, measuring both the period and the width of pulses series involve two
Timers, hence two I/O Port lines. The PMU is specially designed to measure the period and the width
of pulses using only one Timer and one I/O Port line. Compared to the standard solution, this new
one saves one I/O Port line.
5.2. Description
Just after reset, the Pulse Measurement Mode selection bit (PMMOD) bit is equal to zero which
places the PMU in test mode (PMU register, see Figure 5.13. ). This bit must be set to one before
any PMU configuration, otherwise the TSC80251A1 behavior is unpredictable.
The PMU includes three identical modules, as shown in Figure 5.1. Each module features one Pulse
Measurement Input (PMIn) connected to one pin of Port 1 which provides the pulses to measure. The
internal oscillator provide a clock reference common to all the modules to count cycles between pulse
edges. When a new measurement is detected, the corresponding Pulse Measurement Finished flag
(PMFn) is set. However, if the PMU Timer overflows before the measurement completion, the
corresponding PMU overflow flags (PMVn) is set. When any of these flags is set, the PMU interrupt
request which is shared by the three modules is sent to the Interrupt System (see IS in section 9).
PMU
Interrupt
Request
OSC 2PMV2
PMI2/P1.7
PMU module 1 PMF1
PMV1
PMV0
PMI1/P1.6
PMU module 0
PMI0/P1.5
PMU module 2
PMF0
PMF2
Figure 5.1. PMU block diagram
Pulse Measurement Unit
TSC 80251A1
Rev. B (20/09/96)
II. 5.2
The PMU module structure is detailed in Figure 5.2. Each module features its own 8–bit Pulse
Measurement prescaler (PMSCALn) which allows to adapt the PMU time base to the sensor. If the
PMSCALn value is well chosen, the PMPERn value will be comprised between 128 and 255. Using
the TSC80251A1 at its nominal speed, the prescaler then allows to achieve a measurement accuracy
better than 1% while managing wave periods ranging from 20 s to 1 ms.
The PWM ratio is simply obtained by dividing the 8–bit PMU width value (PMWIDn) by the 8–bit
PMU Period value (PMPERn). As shown on Figure 5.3. , the Timer is set to zero at the beginning
of one measurement, hence the errors on the PMPERn value and on the PMWIDn value are both
negative (+0/–1 LSB). However , due to the division, the maximum relative error on the PWM ratio
then will be +/–1 LSB.
PMIn
2OSC
Load
Rst 8–bit Timer
8–bit PMPERn
Load
Load
8–bit PMWIDn
PMSCALn
PMRn
Clk
8–bit
Temp Register
PMEn
PMCON
PMFn PMVn
PMSTAT
Figure 5.2. PMU module n (n = 0, 1, 2)
PMFn
PMIn
PMPERn
PMWIDn
Timer 00
Wn–1
Period Tn
Wn
Temporary
register Wn–1 Wn
Tn–1 Tn
Width Wn
Reset by the Interrupt Service Routine
Figure 5.3. PMU measurement
TSC 80251A1
Rev. B (20/09/96) II. 5.3
All the status information regarding each module are gathered in the Pulse Measurement Status
register (PMSTAT, See Figure 5.12. ). When an overflow occurs in one PMU, its PMSCALn value
must be increased to slow down the PMU time base until the measured period is less than 256 PMU
time base clock cycles.
The Pulse Measurement Control register (PMCON, See Figure 5.5. ) allows to enable or disable each
PMU module operation through the Pulse Measurement Run control bits (PMRn, n = 0, 1, 2). When
PMUn is stopped, its Timer is disabled and its PMPERn and PMWIDn registers are frozen. When
PMUn is running, its PMPERn and PMWIDn registers are periodically updated. Hence, in order to
get a consistent measurement from PMUn (i.e. PMPERn and PMWIDn values relating to the same
period), its flags must be reset by software before any measurement and its measurement must be
read as soon as possible after completion (i.e. when PMFn is set and before the end of the next
period). When PMUn overflows, it should be stopped before resetting its flag to prevent a false
measurement update if the measurement is not yet completed.
The PMCON register also allows to define the input polarity for each PMU through the Pulse
Measurement Edge select bits (PMEn). The width measurement is performed either on the low level
or the high level state as shown on Figure 5.4.
Period
Width
Width
Period
(PMEn = 0)
(PMEn = 1)
PMIn
Figure 5.4. Pulse measurement polarity
TSC 80251A1
Rev. B (20/09/96)
II. 5.4
5.3. Registers
PMCON (0ADh)
Pulse Measurement Control register
– PME2 PME1 PME0 – PMR2 PMR1 PMR0
76543210
Bit Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 PME2 Pulse Measurement 2 edge select bit
Clear this bit to start PMU module n (n = 2) on falling edge.
Set this bit to start PMU module n (n = 2) on rising edge.
5 PME1 Pulse Measurement 1 edge select bit
Clear this bit to start PMU module n (n = 1) on falling edge.
Set this bit to start PMU module n (n = 1) on rising edge.
4 PME0 Pulse Measurement 0 edge select bit
Clear this bit to start PMU module n (n = 0) on falling edge.
Set this bit to start PMU module n (n = 0) on rising edge.
3 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
2 PMR2 Pulse Measurement 2 run control bit
Clear this bit to stop PMU module n (n = 2).
Set this bit to start PMU module n (n = 2).
1 PMR1 Pulse Measurement 1 run control bit
Clear this bit to stop PMU module n (n = 1).
Set this bit to start PMU module n (n = 1).
0 PMR0 Pulse Measurement 0 run control bit
Clear this bit to stop PMU module n (n = 0).
Set this bit to start PMU module n (n = 0).
Reset Value = X000 X000B Figure 5.5. PMCON register
PMPER0 (0A2h)
Pulse Measurement Period register 0 (8–bit read only)
76543210
Reset Value = X000 X000B Figure 5.6. PMPER0 register
TSC 80251A1
Rev. B (20/09/96) II. 5.5
PMPER1 (0A4h)
Pulse Measurement Period register 1 (8–bit read only)
76543210
Reset Value = XXXX XXXXB Figure 5.7. PMPER1 register
PMPER2 (0A6h)
Pulse Measurement Period register 2 (8–bit read only)
76543210
Reset Value = XXXX XXXXB Figure 5.8. PMPER2 register
PMSCAL0 (0AAh)
Pulse Measurement Prescaler register (8–bit)
76543210
Reset Value = XXXX XXXXB Figure 5.9. PMSCAL0 register
PMSCAL1 (0ABh)
Pulse Measurement Prescaler register (8–bit)
76543210
Reset Value = XXXX XXXXB Figure 5.10. PMSCAL1 register
PMSCAL2 (0ACh)
Pulse Measurement Prescaler register (8–bit)
76543210
Reset Value = XXXX XXXXB Figure 5.11. PMSCAL2 register
TSC 80251A1
Rev. B (20/09/96)
II. 5.6
PMSTAT (0AEh)
Pulse Measurement Status register
– PMV2 PMV1 PMV0 – PMF2 PMF1 PMF0
76543210
Bit Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 PMV2 PMU Overflow flag
Set by hardware when an overflow of the Counter has occured during the
pulse measurement.
Must be cleared by software.
5 PMV1 PMU Overflow flag
Set by hardware when an overflow of the Counter has occured during the
pulse measurement.
Must be cleared by software.
4 PMV0 PMU Overflow flag
Set by hardware when an overflow of the Counter has occured during the
pulse measurement.
Must be cleared by software.
3 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
2 PMF2 Pulse Measurement flag
Cleared by hardware when PMU module 2 is stopped.
Set by hardware when PMU module 2 detects a transition.
Must be cleared by software to allow a new measurement.
1 PMF1 Pulse Measurement flag
Cleared by hardware when PMU module 1 is stopped.
Set by hardware when PMU module 1 detects a transition.
Must be cleared by software to allow a new measurement.
0 PMF0 Pulse Measurement flag
Cleared by hardware when PMU module 0 is stopped.
Set by hardware when PMU module 0 detects a transition.
Must be cleared by software to allow a new measurement.
Reset Value = X000 X000B Figure 5.12. PMSTAT register
TSC 80251A1
Rev. B (20/09/96) II. 5.7
PMU (09Fh)
Pulse Measurement Unit Mode Control register
– – – – – – – PMU.0
76543210
Bit Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
3 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
2 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
1 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
0 PMMOD Pulse Measurement Unit
Must be set to one before any PMU configuration, otherwise the
TSC80C251A1 behavior is unpredictable.
Reset Value = XXXX XXX0B Figure 5.13. PMU register
PMWID0 (0A3h)
Pulse Measurement Width register (8–bit read only)
76543210
Reset Value = XXXX XXX0B Figure 5.14. PMWID0 register
TSC 80251A1
Rev. B (20/09/96)
II. 5.8
PMWID1 (0A5h)
Pulse Measurement Width register (8–bit read only)
76543210
Reset Value = XXXX XXXXB Figure 5.15. PMWID1 register
PMWID2 (0A7h)
Pulse Measurement Width register (8–bit, read only)
76543210
Reset Value = XXXX XXXXB Figure 5.16. PMWID2 register
TSC 80251A1
Rev. B (20/09/96) II. 6.1
6.1. Introduction
This chapter describes the Event and Waveform Controller (EWC) which is a superset of the
Programmable Counter Array (PCA) found in some 80C51 microcontrollers. This is an on–chip
peripheral of the TSC80251A1 which performs a variety of timing and counting operations,
including Pulse Width Modulation (PWM).
The EWC can be configured in two modes:
DPCA
DEnhanced PCA (EPCA)
The PCA mode has up to five Compare/Capture modules using the same time base and event Counter.
The EPCA mode has the Compare/Capture modules using their own time base and event Counter.
The EWC also provides the capability for a software Watchdog Timer (WDT).
6.2. Features
DCompatible with PCA: Programmable Counter Array (PCA mode)
DEnhanced PCA (EPCA mode)
DProgrammable Counter mode with 8–bit parallel output on Port 1 (External Counter mode)
DFive 16–bit Counter
DFive 16–bit Compare/Capture modules
DThe last module can also be programmed as a Watchdog Timer (WDT)
DEach module may use up to seven clock sources:
G1/12 of the clock frequency
G1/4 of the clock frequency
GTimer 0 overflow (Modes 1, 2 and 3 )
GExternal input on ECI (P1.2)
GFOSC/2 (EPCA mode)
GTimer 1 overflow (EPCA mode)
GBaud Rate Generator (EPCA mode)
DEach module can be programmed in any of the following modes:
GRising and/or falling edge Capture
GSoftware Timer
GHigh-speed Output
GPulse Width Modulation (PWM)
Event and Waveform Controller
TSC 80251A1
Rev. B (20/09/96)
II. 6.2
6.3. PCA Mode
6.3.1. Timers/Counters
Figure 6.1. depicts the basic logic of the Timer/Counter portion of the PCA. The CH/CL special
function register pair operates as a 16–bit Timer/Counter. The selected input increments CL (low
byte) register. When CL overflows, CH (high byte) register increments after two oscillator periods;
when CH overflows, it sets the PCA overflow flag (CF in CCON register) generating a PCA interrupt
request if ECF bit in CMOD register is set.
CPS1 and CPS0 bits in CMOD register select one of four signals as the input to the T imer/Counter
(See Figure 6.1. ):
FOSC /12
Provides a clock pulse at S5P2 of every peripheral cycle. With FOSC = 16 MHz, the Timer/Counter
increments every 750 ns.
FOSC /4
Provides clock pulses at S1P2, S3P2, and S5P2 of every peripheral cycle. W ith FOSC = 16 MHz,
the Timer/Counter increments every 250 ns.
Timer 0 overflow
The CL register is incremented at S5P2 of the peripheral cycle when Timer 0 overflows. This
selection provides the PCA with a programmable frequency input.
External signal on Port 1.2/ECI
The CPU samples the ECI pin at S1P2, S3P2 and S5P2 of every peripheral cycle. The first clock
pulse (S1P2, S3P2 or S5P2) that occurs following a high–to–low transition at the ECI pin
increments the CL register. The maximum input frequency for this input selection is FOSC /8.
Setting the run control bit (CR in CCON register) turns the PCA T imer/Counter on, if the output of
the NAND gate (See Figure 6.1. ) equals logic 1. The PCA Timer/Counter continues to operate
during idle mode unless CIDL bit of CMOD register is set. CPU can read the contents of CH and
CL registers at any time. However, writing to them is inhibited while they are counting i.e., when
CR bit is set.
TSC 80251A1
Rev. B (20/09/96) II. 6.3
CH
(8 bits)
Processor
in Idle Mode
CF EWC
Interrupt
ECF
Timer/Counter
CR
CIDL
FOSC/2
FOSC/4
Timer 0
P1.2/ECI
00
01
10
11
CL
(8 bits)
CPS1 CPS0
CMOD
Module 0
Module 1
Module 2
Module 3
Module 4
CMOD
Figure 6.1. EWC Timer/Counter in PCA mode
6.3.2. Compare/Capture Modules
Each Compare/Capture module is made up of a Compare/Capture register pair (CHx/CLx; x = 0, 1, 2,
3, 4), a 16–bit comparator and various logic gates and signal transition selectors. The registers store
the time or count at which an external event occurred (capture) or at which an action should occur
(comparison). For example, in the PWM mode, the low–byte register Counter the duty cycle of the
output waveform. The logical configuration of a Compare/Capture module controls depends on its
mode of operation.
Each module can be independently programmed for operation in any of the following modes:
D16–bit Capture mode with triggering on the positive edge, negative edge or either edge
DCompare modes:
G16–bit software Timer
G16–bit high–speed output
G16–bit Watchdog Timer (module 4 only)
G8–bit Pulse Width Modulation
The Compare function provides the capability for operating the five modules as Timers, event
Counters or Pulse Width Modulators. Four modes employ the Compare function: 16–bit software
Timer mode, high–speed output mode, WDT mode and PWM mode. In the first three of these, the
Compare/Capture module continuously compares the 16–bit PCA Timer/Counter value with the
16–bit value pre–loaded into the module’s CCAPxH/CCAPxL register pair. In the PWM mode, the
module continuously compares the value in the low–byte PCA T imer/Counter register (CL) with an
8–bit value in the CCAPxL module register . Comparisons are made three times per peripheral cycle
to match the fastest PCA Timer/Counter clocking rate (FOSC/4).
TSC 80251A1
Rev. B (20/09/96)
II. 6.4
Setting ECOMx bit in a module’s mode register (CCAPMx) selects the Compare function for that
module. To use the modules in the Compare modes, observe the following general procedure:
GSelect the module’s mode of operation.
GSelect the input signal for the PCA Timer/Counter.
GLoad the comparison value into the module’s Compare/Capture register pair.
GSet the PCA Timer/Counter run Counter bit.
GAfter a match causes an interrupt, clear the module’s Compare/Capture flag.
DNo operation
Bit combinations programmed into a Compare/Capture module’s mode register (CCAPMx)
determine the operation mode. Figure 6.10. provides bit definition and Table 6.1. lists the bit
combinations of the available modes. Other bit combinations are invalid and produce undefined
results.
The Compare/Capture modules perform their programmed functions when their common time base,
the PCA Timer/Counter, runs. The Timer/Counter is turned on and off with CR bit in CCON register.
To disable any given module, program it for the “no operation” mode. The occurrence of a Capture,
software Timer, or high–speed output event in a Compare/Capture module sets the module’s
Compare/Capture flag (CCFx) in CCON register and generates a PCA interrupt request if the
corresponding enable bit in CCAPMx register is set.
The CPU can read or write CCAPxH and CCAPxL registers at any time.
Table 6.1. PCA module modes
ECOMx CAPPx CAPNx MATx TOGx PWMx ECCFx Module Mode
0 0 0 0 0 0 0 No operation
X (2) 1 0 0 0 0 X (2) 16–bit Capture
on positive–edge trigger at CEXx
X (2) 0 1 0 0 0 X (2) 16–bit Capture
on negative–edge trigger at CEXx
X (2) 1 1 0 0 0 X (2) 16-bit Capture
on positive/negative-edge trigger at CEXx
1 0 0 1 0 0 X (2) Compare: software T imer
1 0 0 1 1 0 X (2) Compare: high–speed output
1 0 0 0 0 1 0 Compare: 8–bit PWM
1 0 0 1 X (2) 0X (2) Compare: PCA WDT (CCAPM4 only) (3)
Notes:
1. This table shows the CCAPMx register bit combinations for selecting the operating modes of the PCA
Compare/Capture modules. Other bit combinations are invalid.
2. X = indetermined; x = 0, 1, 2, 3, 4.
3. For the PCA WDT mode, set also WDTE bit in CMOD register to enable the reset output signal.
6.3.2.1. 16-bit Capture Mode
The Capture mode (See Figure 6.2. ) provides the PCA with the ability to measure periods, pulse
widths, duty cycles and phase differences at up to five separate inputs. External I/0 pins CEXO
through CEX4 are sampled for signal transitions (positive and/or negative as specified). When a
TSC 80251A1
Rev. B (20/09/96) II. 6.5
Compare/Capture module programmed for the Capture mode detects the specified transition, it
captures the PCA Timer/Counter value. This records the time at which an external event is detected,
with a resolution equal to the Timer/Counter clock period.
To program a Compare/Capture module for the 16–bit Capture mode, program the CAPPx and
CAPNx bits in the module’s CCAPMx register as follows:
To trigger the Capture on a positive transition, set CAPPx and clear CAPNx
To trigger the Capture on a negative transition, set CAPNx and clear CAPPx
To trigger the Capture on a positive or negative transition, set both CAPPx and CAPNx
Table 6.1. lists the bit combinations for selecting module modes. For modules in the Capture mode,
detection of a valid signal transition at the I/O pin (CEXx) causes hardware to load the current PCA
Timer/Counter value into the Compare/Capture registers (CCAPxH/CCAPxL) and to set the
module’ s Compare/Capture flag (CCFx) in the CCON register. If the corresponding interrupt enable
bit (ECCFx) in the CCAPMx register is set, a the PCA sends an interrupt request to the EWC interrupt
handler.
Since hardware does not clear the event flag when the interrupt is processed, the user must clear the
flag by software. A subsequent Capture by the same module overwrites the existing captured value.
To preserve a captured value, save it in RAM with the interrupt service routine before the next
Capture event occurs.
CEX
x = 0, 1, 2, 3, 4
PCA Timer/Counter
Count
Input CH
(8bits) CL
(8bits)
CCAPxH CCAPxL
CCFx
CCON Register Enable
EWC
Interrupt
Capture
– 0 CAPPx CAPNx 0 0 0 ECCFx
70
CCAPMx Mode Register
(x = 0, 1, 2, 3, 4)
Figure 6.2. PCA 16–bit Capture Mode
TSC 80251A1
Rev. B (20/09/96)
II. 6.6
6.3.2.2. 16–bit Software Timer Mode
To program a Compare/Capture module for the 16–bit software Timer mode (See Figure 6.3. ), set
the ECOMx and MATx bits in the module’s CCAPMx register. Table 6.1. lists the bit combinations
for selecting module modes.
A match between the PCA Timer/Counter and the Compare/Capture registers (CCAPxH/CCAPxL)
sets the module’s Compare/Capture flag (CCFx in CCON register). This generates an interrupt
request if the corresponding interrupt enable bit (ECCFx in CCAPMx register) is set. Since hardware
does not clear the Compare/Capture flag when the interrupt is processed, the user must clear the flag
in software. During the interrupt routine, a new 16–bit Compare value can be written to the
Compare/Capture registers (CCAPxH/CCAPxL).
CCAPxL
(8 bits)
CCAPxH
(8 bits)
– ECOMx 0 0 MATx TOGx 0 ECCFx
70
CCAPMx Mode Register
CH
(8 bits) CL
(8 bits)
16-Bit
Comparator
Match
Count
Enable CCFx
CCON Enable
EWC
Interrupt
CEXx
Compare/Capture ModulePCA Timer/Counter
“0”
“1”
Reset
Write to
CCAPxL
Write to CCAPxH
x = 0, 1, 2, 3, 4
For software Timer mode, set ECOMx and MATx.
For high speed output mode, set ECOMx, MATx
and TOGx.
Toggle
Figure 6.3. PCA Software Timer and High–Speed Output Modes
Note:
To prevent an invalid match while updating these registers, user software should write to CCAPxL first, then
CCAPxH. A write to CCAPxL clears the ECOMx bit disabling the Compare–function, while a write to CCAPxH
sets the ECOMx bit re–enabling the Compare function.
6.3.2.3. High-Speed Output Mode
The high–speed output mode (See Figure 6.3. ) generates an output signal by toggling the module’s
I/0 pin (CEXx) when a match occurs. This provides greater accuracy than toggling pins in software
because the toggle occurs before the interrupt request is serviced. Thus, interrupt response time does
not affect the accuracy of the output.
To program a Compare/Capture module for the high–speed output mode, set the ECOMx, MATx,
TOGx bits in the module’s CCAPMx register. Table 6.1. lists the bit combinations for selecting
module modes. A match between the PCA Timer/Counter and the Compare/Capture registers
(CCAPxH/CCAPxL) toggles the CEXx pin and sets the module’s Compare/Capture flag (CCFx in
TSC 80251A1
Rev. B (20/09/96) II. 6.7
CCON register). By setting or clearing the CEXx pin in software, the user selects whether the match
toggles the pin from low to high or vice versa.
6.3.2.4. Watchdog Timer mode
A Watchdog Timer (WDT) provides the means to recover from routines that do not complete
successfully. A WDT automatically invokes a device reset if it does not regularly receive hold–off
signals. W atchdog Timers are used in applications that are subject to electrical noise, power glitches,
electrostatic discharges, etc., or where high reliability is required.
The PCA provides a 16–bit programmable frequency WDT as a mode option on Compare/Capture
module 4. This mode generates a device reset when the count in the PCA Timer/Counter matches the
value stored in the module 4 Compare/Capture registers. A PCA WDT reset has the same effect as an
external reset.
Module 4 is the only PCA module that has the WDT mode (See Figure 6.4. ). When not programmed
as a WDT, it can be used in the other modes.
To program module 4 for the PCA WDT mode:
DSet ECOM4 and MAT4 bits in CCAPM4 register and WDTE bit in CMOD register.
Table 6.1. lists the bit combinations for selecting module modes.
DSelect the desired input for the PCA Timer/Counter by programming CPS0 and CPS1 bits in
CMOD register (See Figure 6.15. ).
DEnter a 16–bit comparison value in the Compare/Capture registers (CCAP4H/CCAP4L).
DEnter a 16–bit initial value in the PCA Timer/Counter (CH/CL) or use the reset value (0000h).
DThe difference between these values multiplied by the PCA input pulse rate determines the
running time to ”expiration.”
DSet the Timer/Counter run Counter bit (CR in CCON register) to start the PCA WDT.
DThe PCA WDT generates a reset signal each time a match occurs.
DTo hold off a PCA WDT reset, the user has three options:
GPeriodically change the comparison value in CCAP4H/CCAP4L so a match never occurs.
GPeriodically change the PCA Timer/Counter value so a match never occurs.
GDisable the module 4 reset output signal by clearing WDTE bit before a match occurs, then
later re–enable it.
The first two options are more reliable because the Watchdog Timer is not disabled as in the third
option. The second option is not recommended if other PCA modules are in use, since the five
modules share a common time base. Thus, in most applications the first option is the best one.
TSC 80251A1
Rev. B (20/09/96)
II. 6.8
CH
(8 bits) CL
(8 bits) CCAPxH
(8 bits) CCAPxL
(8 bits)
16-Bit
Comparator
Match
– ECOM4 0 0 1 – 0 –
70
CCAPM4 Mode Register
Count
Enable
Compare/Capture Module
PCA Timer/Counter
“0”
“1”
Reset
Write to
CCAP4L
Write to
CCAP4H
For software Timer mode, set ECOMx and MAT
x
For high speed output mode, set ECOMx, M
A
TOGx.
WDTE
CMOD.6
PCA WDT
Reset
Figure 6.4. PCA Watchdog Timer mode
6.3.2.5. Pulse Width Modulator Mode
The five PCA Compare/Capture modules can be independently programmed to function as Pulse
Width Modulators (PWM). The modulated output, which has an 8–bit pulse width resolution is
available on CEXx pin. The PWM output can be used to convert digital data to an analog signal with
simple external circuitry.
In this mode, the value in the low byte of the PCA Timer/Counter (CL) is continuously compared
with the value in the low byte of the Compare/Capture register (CCAPxL; x = 0, 1, 2, 3, 4). When
CL < CCAPxL, the output waveform is low (See Figure 6.6. ). When a match occurs (CL =
CCAPxL), the output waveform goes high and remains high until CL register rolls over from FFh to
00h, ending the period. At roll–over the output returns to low, the value in CCAPxH register is loaded
into CCAPxL register, and a new period begins.
The value in CCAPxL register determines the duty cycle of the current period.
The value in CCAPxH register determines the duty cycle of the following period.
Changing the value in CCAPxL over time modulates the pulse width. As depicted in Figure 6.6. , the
8–bit value in CCAPxL can vary from 0 (100% duty cycle) to 255 (0.4% duty cycle).
TSC 80251A1
Rev. B (20/09/96) II. 6.9
To program a Compare/Capture module for the PWM mode:
Set ECOMx and PWMx bits in the module’s CCAPMx register. Table 6.1. lists the bit
combinations for selecting module modes.
Select the desired input for the PCA Timer/Counter by programming CPS0 and CPS1 bits in
CMOD register.
Enter an 8–bit value in CCAPxL to specify the duty cycle of the first period of the PWM output
waveform.
Enter an 8–bit value in CCAPxH to specify the duty cycle of the second period.
Set the Timer/Counter run Counter bit (CR in CCON register) to start the PCA Timer/Counter.
Note:
To change the value in CCAPxL without glitches, write the new value to the high byte register (CCAPxH). This
value is shifted by hardware into CCAPxL when CL rolls over from FFh to 00h.
The frequency of the PWM output equals the frequency of the PCA Timer/Counter input signal
divided by 256. The highest frequency occurs when the FOSC/4 input is selected for the PCA
Timer/Counter. For FOSC = 16 MHz, this is 15.6 KHz.
CL rollover from FFH TO 00h
loads CCAPxH contents into
CCAPxL
CCAPxL
CCAPxH
8-Bit
Comparator
CL (8 bits)
“0”
“1”
CL < CCAPxL
CL >= CCAPxL
CEX
x = 0, 1, 2 or 4
– ECOMx 0 0 0 0 PWMx 0
7 0
CCAPMx Mode Register
Figure 6.5. PWM mode
TSC 80251A1
Rev. B (20/09/96)
II. 6.10
CCAPxL Duty Cycle 1Output Waveform
255 0.4%
0
230 10%
0
1
0
128 50%
0
1
0
25 90%
0
1
0
0 100%
1
0
Figure 6.6. PWM variable duty cycle
6.4. Enhanced PCA mode
The Enhanced PCA mode (EPCA) provides all the PCA functionalities with additional features. It
has the five Compare/Capture modules using their own EPCA Timer/Counter. One Timer/Counter
and its Capture/Compare module form an EPCA unit. These five EPCA units may be linked to form a
Time Base Array (TBA).
The EPCA mode is enabled by EPCA bit in CRC register. After reset, EPCA mode is disabled and the
EWC is configured in PCA mode.
Please notice that the external Counter mode (See NO TAG) takes precedence over the EPCA mode
and should be disabled to have the EPCA working.
TSC 80251A1
Rev. B (20/09/96) II. 6.11
6.4.1. Timers/Counters
EPCA mode features five identical Timers/Counters instead of one in PCA mode. Each
T imer/Counter is dedicated to one module. The structure of the EPCA unit is shown on Figure 6.7.
EPCA Timers/Counters are very similar to PCA Timer/Counter. The behavior of the
Capture/Compare module is exactly the same as in PCA mode. All the differences are highlighted
below:
DIndependent Counter High and Counter Low registers (CHx and CLx; x = 0, 1, 2, 3, 4). In fact, in
EPCA mode, CL is used as CL0 and CH is used as CH0.
DIndependent Counter Run Counter bits (CRx; x = 0, 1, 2, 3, 4). These flags are gathered in the
Counter Run Counter register (CRC). CR bit of CCON register is not used in EPCA mode.
DIndependent Counter Idle Counter bits (CIDLx; x = 0, 1, 2, 3, 4). These flags are in the Counter
Mode registers (CMODx; x = 1, 2, 3). CIDL bit of CMOD register is not used in EPCA mode.
DUp to seven different clock sources instead of four. They are selected independently for each
Timer/Counter by the Count Pulse Select bits (CPx(2:0); x = 0, 1, 2, 3, 4). Three bits encode seven
possible choice and one reserved. If CPx2 = 0, CPx(1:0) is performing the same selection as would
CPS1:0 in PCA mode. The three new choices are provided by CPx2 set to one:
GFastest clock: FOSC/4 is selected by CPx(1:0)=00.
GTimer 1 overflow: Timer 1 is selected by CPx(1:0)=01.
GBaud Rate Generator: it is selected by CPx(1:0)=11.
DIndependent Counter Overflow flags (CFx; x = 0, 1, 2, 3, 4). These flags are gathered in the
Counter Overflow Flag register (COF). CF bit of CCON register is not used in EPCA mode. When
a flag is set, it produces an EWC interrupt request if the corresponding Enable Counter Overflow
flag (ECFx; x = 0, 1, 2, 3, 4) is set. These flags are gathered in the Enable Counter Overflow Flag
register (ECOF). ECF bit of CMOD register is not used in EPCA mode. They must be cleared by
software.
DFour independent Compare/Capture interrupt request for CCFx (x = 1, 2, 3, 4). Each of them has
its own interrupt vector (See “Interrupt System” chapter). Nevertheless CCF0 bit shares the
general EWC interrupt request with the Counter Overflow flags (CFx; x = 0, 1, 2, 3, 4). All CCFx
(x = 0, 1, 2, 3, 4) bits are gathered in CCON register as in PCA mode. The Enable CCFx interrupt
bits (ECCFx; x = 0, 1, 2, 3, 4) are in the Compare/Capture Module mode registers (CCAPMx; x =
0, 1, 2, 3, 4) which works exactly the same as in PCA mode.
TSC 80251A1
Rev. B (20/09/96)
II. 6.12
CPn0CPn2
CHn
(8 bits)
Processor
in Idle Mode
CFn EWC
Interrupt
ECFn
Capture/Compare
Modules n
Timer/Counter
CRn
CIDL
FOSC/12
FOSC/4
Timer 0
P1.2/ECI
000
001
010
011 CLn
(8 bits)
CPn1
100
101
110
111
FOSC/2
Timer 1
reserved
BRG
CMODx (x = 1, 2, 3)
CCFn EWCn
Interrupt
Module (n = 1, 2, 3, 4)
ECCFn
COF
CIE
CCON
CCAPMn
CP00CP02
CH0
(8 bits)
Processor
in Idle Mode
CF0
EWC
Interrupt
ECF0
Capture/Compare
Module 0
Timer/Counter
CR0
CIDL
FOSC/12
FOSC/4
Timer 0
P1.2/ECI
000
001
010
011 CL0
(8 bits)
CP01
100
101
110
111
FOSC/2
Timer 1
reserved
BRG
CCF0
Module 0
ECCF0
CMOD
CCAPM0
COF
CIE
CCON
Figure 6.7. EWC Timer/Counter in EPCA mode
TSC 80251A1
Rev. B (20/09/96) II. 6.13
6.5. Registers
CCAP0H (0FAh)
CCAP1H (0FBh)
CCAP2H (0FCh)
CCAP3H (0FDh)
CCAP4H (0FEh)
Compare/Capture Module x (x = 0, 1, 2, 3, 4) High registers
76543210
Reset Value = 0000 0000B
Figure 6.8. EWC CCAPxH registers (x = 0, 1, 2, 3, 4)
CCAP0L (0EAh)
CCAP1L (0EBh)
CCAP2L (0ECh)
CCAP3L (0EDh)
CCAP4L (0EEh)
Compare/Capture Module x (x = 0, 1, 2, 3, 4) Low registers
76543210
Reset Value = 0000 0000B
Figure 6.9. EWC CCAPxL registers (x = 0, 1, 2, 3, 4)
TSC 80251A1
Rev. B (20/09/96)
II. 6.14
CCAPM0 (0DAh)
CCAPM1 (0DBh)
CCAPM2 (0DCh)
CCAPM3 (0DDh)
CCAPM4 (0DEh)
Compare/Capture Module x (x = 0, 1, 2, 3, 4) Mode registers
– ECOMx CAPPx CAPNx MATx TOGx PWMx ECCFx
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
6 ECOMx Enable Compare Mode bit
Clear to disable the Compare function. Set to enable the Compare function.
The Compare function is used to implement the software Timer , high-speed output,
PWM and WDT modes.
5 CAPPx Capture Mode (Positive) bit
Clear to disable the Capture function triggered by a positive edge on CEXx pin.
Set to enable the Capture function triggered by a positive edge on CEXx pin.
4 CAPNx Capture Mode (Negative) bit
Clear to disable the Capture function triggered by a negative edge on CEXx pin.
Set to enable the Capture function triggered by a negative edge on CEXx pin.
3 MATx Match bit
Set by hardware when a match of the PCA Timer/Counter with the
Compare/Capture register sets the CCFx bit in the CCON register, flagging an
interrupt.
Must be cleared by software.
2 TOGx Toggle bit
The toggle mode is configured by setting ECOMx, MATx and TOGx bits.
Set by hardware when a match of the PCA Timer/Counter with the
Compare/Capture register toggles the CEXx pin.
Must be cleared by software.
1 PWMx Pulse Width Modulation Mode bit
Set to configure the module for operation as an 8-bit Pulse Width Modulator with
output waveform on CEXx pin.
Must be cleared by software.
0 ECCFx Enable CCFx Interrupt bit
Set to enable Compare/Capture flag CCFx in CCON register to generate an
interrupt request.
Must be cleared by software.
Reset Value = X000 0000B
Figure 6.10. EWC CCAPMx (x = 0, 1, 2, 3, 4) registers
TSC 80251A1
Rev. B (20/09/96) II. 6.15
CCON (0D8h)
Timer/Counter Control register
CF CR – CCF4 CCF3 CCF2 CCF1 CCF0
76543210
Bit
Number Bit
Mnemonic Description
7 CF PCA T imer/Counter Overflow flag
Set by hardware when the PCA Timer/Counter rolls over. This generates a PCA
interrupt request if the ECF interrupt enable bit in CMOD register is set.
CF can be set by hardware or software but must be cleared by software.
6 CR PCA Timer/Counter Run Control bit
Clear to turn the PCA Timer/Counter off.
Set to turn the PCA Timer/Counter on.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 CCF4 PCA Module 4 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt
request if the ECCF4 interrupt enable bit in the corresponding CCAPM4 register is
set.
Must be cleared by software.
3 CCF3 PCA Module 3 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt
request if the ECCF3 interrupt enable bit in the corresponding CCAPM3 register is
set.
Must be cleared by software.
2 CCF2 PCA Module 2 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt
request if the ECCF2 interrupt enable bit in the corresponding CCAPM2 register is
set.
Must be cleared by software.
1 CCF1 PCA Module 1 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt
request if the ECCF1 interrupt enable bit in the corresponding CCAPM1 register is
set.
Must be cleared by software.
0 CCF0 PCA Module 0 Compare/Capture flag
Set by hardware when a match or capture occurs. This generates a PCA interrupt
request if the ECCF0 interrupt enable bit in the corresponding CCAPM0 register is
set.
Must be cleared by software.
Reset Value = 00X0 0000B
Figure 6.11. EWC CCON register
TSC 80251A1
Rev. B (20/09/96)
II. 6.16
CH0=CH (0F9h)
CH1 (0F4h)
CH2 (0F5h)
CH3 (0F6h)
CH4 (0F7h)
Counter x (x = 0, 1, 2, 3, 4) High registers
76543210
Reset Value = 0000 0000B
Figure 6.12. EWC CHx registers (x = 0, 1, 2, 3, 4)
CIE (0E3h)
Timer/Counter Interrupt Enable register
– – – ECF4 ECF3 ECF2 ECF1 ECF0
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
4 ECF4 Enable Counter 4 Overflow bit
Clear to disable the interrupt generated by CF4 bit in COF register.
Set to enable CF4 bit in COF register to generate an interrupt.
3 ECF3 Enable Counter 3 Overflow bit
Clear to disable the interrupt generated by CF3 bit in COF register.
Set to enable CF3 bit in COF register to generate an interrupt.
2 ECF2 Enable Counter 2 Overflow bit
Clear to disable the interrupt generated by CF2 bit in COF register.
Set to enable CF2 bit in COF register to generate an interrupt.
1 ECF1 Enable Counter 1 Overflow bit
Clear to disable the interrupt generated by CF1 bit in COF register.
Set to enable CF1 bit in COF register to generate an interrupt.
0 ECF0 Enable Counter 0 Overflow bit
Clear to disable the interrupt generated by CF0 bit in COF register.
Set to enable CF0 bit in COF register to generate an interrupt.
Reset Value = XXX0 0000B
Figure 6.13. EWC CIE register
TSC 80251A1
Rev. B (20/09/96) II. 6.17
CL0=CL (0E9h)
CL1 (0E4h)
CL2 (0E5h)
CL3 (0E6h)
CL4 (0E7h)
Counter x (x = 0, 1, 2, 3, 4) Low registers
76543210
Reset Value = 0000 0000B
Figure 6.14. EWC CLx registers (x = 0, 1, 2, 3, 4)
TSC 80251A1
Rev. B (20/09/96)
II. 6.18
CMOD (0D9h)
Counter Mode register
CIDL WDTE – – – CPS1 CPS0 ECF
76543210
Bit
Number Bit
Mnemonic Description
7 CIDL Counter Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
6 WDTE Watchdog Timer Enable bit
Clear to disable the Watchdog Timer function on EWC module 4.
Set to enable the Watchdog Timer function on EWC module 4.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
3 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
2 CPS1 EWC Count Pulse Select bits
CPS1 CPS0 Clock source
0 0 Internal Clock, Fosc/12
1 CPS0
,
0 1 Internal Clock, Fosc/4
1 0 Timer 0 overflow
1 0 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
0 ECF Enable Counter Overflow Interrupt bit
Clear to disable the interrupt generated by CF bit in CCON register.
Set to enable CF bit in CCON register to generate an interrupt.
Figure 6.15. EWC CMOD register
TSC 80251A1
Rev. B (20/09/96) II. 6.19
CMOD1 (0DFh)
Counter 1 Mode register
CID1 CP12 CP11 CP10 CID0 CP02 CP01 CP00
76543210
Bit
Number Bit
Mnemonic Description
7 CID1 Timer/Counter 1 Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
6 CP12 EWC Module 1 Count Pulse Select bits
CP12 CP1 1 CP10 Clock source
0 0 0 Internal clock, Fosc/12
5 CP11
0 0 0 Internal
clock,
Fosc/12
0 0 1 Internal clock, Fosc/4
0 1 0 Timer 0 overflow
0 1 1 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
1 0 0 Internal clock, Fosc/2
4 CP10
1 0 0 Internal
clock
,
Fosc/2
1 0 1 Timer 1 overflow
1 1 0 Reserved
1 1 1 Baud Rate Generator overflow
3 CID0 Timer/Counter 0 Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
2 CP02 EWC Module 0 Count Pulse Select bits
CP02 CP01 CP00 Clock source
0 0 0 Internal clock, Fosc/12
1 CP01
0 0 0 Internal
clock,
Fosc/12
0 0 1 Internal clock, Fosc/4
0 1 0 Timer 0 overflow
0 1 1 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
1 0 0 Internal clock, Fosc/2
0 CP00
1 0 0 Internal
clock
,
Fosc/2
1 0 1 Timer 1 overflow
1 1 0 Reserved
1 1 1 Baud Rate Generator overflow
Reset Value = 0000 0000B
Figure 6.16. EWC CMOD1 register
TSC 80251A1
Rev. B (20/09/96)
II. 6.20
CMOD2 (0EFh)
Counter 2 Mode register
CID3 CP32 CP31 CP30 CID2 CP22 CP21 CP20
76543210
Bit
Number Bit
Mnemonic Description
7 CID3 Timer/Counter 3 Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
6 CP32 EWC Module 3 Count Pulse Select bits
CP32 CP31 CP30 Clock source
0 0 0 Internal clock, Fosc/12
5 CP31
0 0 0 Internal
clock,
Fosc/12
0 0 1 Internal clock, Fosc/4
0 1 0 Timer 0 overflow
0 1 1 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
1 0 0 Internal clock, Fosc/2
4 CP30
1 0 0 Internal
clock
,
Fosc/2
1 0 1 Timer 1 overflow
1 1 0 Reserved
1 1 1 Baud Rate Generator overflow
3 CID2 Timer/Counter 2 Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
2 CP22 EWC Module 2 Count Pulse Select bits
CP22 CP21 CP20 Clock source
0 0 0 Internal clock, Fosc/12
1 CP21
0 0 0 Internal
clock,
Fosc/12
0 0 1 Internal clock, Fosc/4
0 1 0 Timer 0 overflow
0 1 1 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
1 0 0 Internal clock, Fosc/2
0 CP20
1 0 0 Internal
clock
,
Fosc/2
1 0 1 Timer 1 overflow
1 1 0 Reserved
1 1 1 Baud Rate Generator overflow
Reset Value = 0000 0000B
Figure 6.17. EWC CMOD2 register
TSC 80251A1
Rev. B (20/09/96) II. 6.21
CMOD3 (0FFh)
Counter 3 Mode register
– – – – CID4 CP42 CP41 CP40
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
3 CID4 Timer/Counter 4 Idle Control bit
Clear to let the EWC running during Idle mode.
Set to stop the EWC running when Idle mode is invoked.
2 CP42 EWC Module 4 Count Pulse Select bits
CP42 CP41 CP40 Clock source
0 0 0 Internal clock, Fosc/12
1 CP41
0 0 0 Internal
clock,
Fosc/12
0 0 1 Internal clock, Fosc/4
0 1 0 Timer 0 overflow
0 1 1 External clock at ECI/P1.2 pin (Max. Rate = Fosc/8)
1 0 0 Internal clock, Fosc/2
0 CP40
1 0 0 Internal
clock
,
Fosc/2
1 0 1 Timer 1 overflow
1 1 0 Reserved
1 1 1 Baud Rate Generator overflow
Reset Value = 0000 0000B
Figure 6.18. EWC CMOD3 register
TSC 80251A1
Rev. B (20/09/96)
II. 6.22
COF (0E1h)
Timer/Counter Overflow Flag register
– – – CF4 CF3 CF2 CF1 CF0
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 CF4 EWC Timer/Counter 4 Overflow flag
Set by hardware when the Counter rolls over.
CF4 flags an interrupt if ECF4 bit in ECF register is set.
CF4 can be set by hardware or software but must be cleared by software
3 CF3 EWC Timer/Counter 3 Overflow flag
Set by hardware when the Counter rolls over.
CF3 flags an interrupt if ECF3 bit in ECF register is set.
CF3 can be set by hardware or software but must be cleared by software.
2 CF2 EWC Timer/Counter 2 Overflow flag
Set by hardware when the Counter rolls over.
CF2 flags an interrupt if ECF2 bit in ECF register is set.
CF2 can be set by hardware or software but must be cleared by software.
1 CF1 EWC Timer/Counter 1 Overflow flag
Set by hardware when the Counter rolls over.
CF1 flags an interrupt if ECF1 bit in ECF register is set.
CF1 can be set by hardware or software but must be cleared by software.
0 CF0 EWC Timer/Counter 0 Overflow flag
Set by hardware when the Counter rolls over.
CF0 flags an interrupt if ECF0 bit in ECF register is set.
CF0 can be set by hardware or software but must be cleared by software.
Reset Value = XXX0 0000B
Figure 6.19. EWC COF register
TSC 80251A1
Rev. B (20/09/96) II. 6.23
CRC (0E2h)
Counter Run Control register
STPM – MODE CR4 CR3 CR2 CR1 CR0
76543210
Bit
Number Bit
Mnemonic Description
7 STPM Stop Mode bit
Clear to stop the Counter immediately upon a reset of the CR0 bit.
Set to stop the Counter after the roll-over upon a reset of the CR0 bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 MODE PCA/EPCA bit
Clear to configure the EWC in PCA mode (configuration per default, after a
hardware reset).
Set to configure the EWC in EPCA mode. In that case, CR bit in CCON register is
don’t care.
4 CR4 EWC Timer/Counter 4 Run bit
If the MODE bit is cleared, setting this bit is irrelevant.
Clear to turn the EWC Timer/Counter 4 off.
Set to turn the EWC Timer/Counter 4 on.
3 CR3 EWC Timer/Counter 3 Run bit
If the MODE bit is cleared, setting this bit is irrelevant.
Clear to turn the EWC Timer/Counter 3 off.
Set to turn the EWC Timer/Counter 3 on.
2 CR2 EWC Timer/Counter 2 Run bit
If the MODE bit is cleared, setting this bit is irrelevant.
Clear to turn the EWC Timer/Counter 2 off.
Set to turn the EWC Timer/Counter 2 on.
1 CR1 EWC Timer/Counter 1 Run bit
If the MODE bit is cleared, setting this bit is irrelevant.
Clear to turn the EWC Timer/Counter 1 off.
Set to turn the EWC Timer/Counter 1 on.
0 CR0 EWC Timer/Counter 0 Run bit
If the MODE bit is cleared, setting this bit is irrelevant.
Clear to turn the EWC Timer/Counter 0 off.
Set to turn the EWC Timer/Counter 0 on.
Reset Value = 0000 0000B
Figure 6.20. EWC CRC register
TSC 80251A1
Rev. B (20/09/96) II. 7.1
7.1. Introduction
This chapter describes the Analog to Digital Converter (ADC) and the relating SFR. This ADC is
a key for digital processing of real world phenomena when electronic sensors providing a voltage
analogy to physical phenomena are used.
7.2. Description
Figure 7.1. shows the ADC structure. It consists of a 4–input analog multiplexer followed by a
sample and hold and an 8–bit successive approximation Analog/Digital (A/D) converter. It only
requires an external Voltage Reference (Vref) with no other support component. This pin is next to
the Analog ground pin (AVSS) to optimize its decoupling. The analog inputs (AN0 to AN3) are next
to Vref which allows to easily shield all the analog pins using an AVSS guard ring.
AN0 to AN3 are alternate function of Port 1. Digital inputs on Port 1 can be read any time during
an A/D conversion. However, special care should be taken in mixing analog and digital signals on
these pins, which may cause cross–talk and degrades the ADC accuracy . Furthermore, if one of these
pins is selected to perform a conversion, it will return a digital one when read while the conversion
is in progress.
The acquisition is controlled by the ADC Control register (ADCON, See Figure 7.3. ). The
multiplexer selects one of the four possible analog inputs according to the number coded in two
address bits (ADDR1 and ADDR0). Then the ADC Start bit (ADCS) allows to begin an acquisition
by setting it to one. It remains set until the end of the conversion, then it automatically reset. This
may takes up to 600 oscillator clock periods. This conversion time includes an acquisition time: this
is the sum of the times required for the muxed analog signal to settle after the multiplexer command
is selected and for the sample and hold procedure to complete.
Analog
MUX S/H +
–
SAR
R/2R DAC
ADAT
– – – ADCI ADCS – ADDR1 ADDR0
ADC Interrupt
70
ADCON
Vref
AN0/P1.0
AN1/P1.1
AN2/P1.2
AN3/P1.3
Figure 7.1. Analog Digital Converter structure
8-bit Analog to Digital Converter
TSC 80251A1
Rev. B (20/09/96)
II. 7.2
No new acquisition can begin while ADCS bit is set (i.e. a conversion is in progress) and this bit
cannot be reset by software. When a new result is ready in the 8–bit ADC Data register (ADA T), when
the conversion is completed, the ADC Interrupt bit (ADCI) is set and an ADC interrupt request is
sent to the Interrupt System (see “Interrupt System” chapter). This bit must be reset by software when
the contents of ADAT register can be disposed of (i.e. after it has been read by the interrupt service
routine). Then a new acquisition can be requested (i.e. ADCS bit cannot be set while ADCI bit is set).
ADCI bit and ADAT register are preserved in Idle mode and in Power–Down mode (see “Power
Monitoring and Management”chapter), hence an already completed conversion is not lost. A
conversion in progress will be aborted when entering the Idle mode, while it may not be aborted when
entering in Power–Down mode. Therefore, it is recommended to wait for ADCS bit is zero before
going into this mode, otherwise ADCI bit and ADAT register may change and a false interrupt may
occur when this mode is exited through an interrupt. After an hardware reset, ADCON is set to its
default value and the Analog to Digital Converter is inactive.
TSC 80251A1
Rev. B (20/09/96) II. 7.3
7.3. Registers
ADAT (0C6h)
Analog Data register (8–bit, read only)
76543210
Reset value = XXXX XXXXB Figure 7.2. ADAT register
ADCON (0C5h)
ADC Control register
– – – ADCI ADCS – ADDR1 ADDR0
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 ADCI ADC Interrupt flag
Set by hardware when an A/D result is ready to be read. An interrupt is invoked if
the ADC interrupt flag is enabled.
Must be cleared by software.
3 ADCS ADC Start and Status bit
Cleared by hardware when the A/D conversion is completed, then ADCI is set.
Set to start an A/D conversion.
2 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
1 ADDR1 Input Channel Selection bits
ADDR1 ADDR0 Input pin selection
0 0 AN0 (P1.0)
0 ADDR0
0 0 AN0
(P1.0)
0 1 AN1 (P1.1)
1 0 AN2 (P1.2)
1 1 AN3 (P1.3)
Reset Value = 0000 0000B Figure 7.3. ADCON register
TSC 80251A1
Rev. B (20/09/96) II. 8.1
8.1. Introduction
These features can be used to supervise the Power Supply (VDD) and to start up properly the
microcontroller when the power is up.
The power monitoring and management consist of the main features listed below and explained
hereafter
Power–On/Off reset
Power–Fail detector
Power–Off flag
Clock Prescaler
Idle Mode
Power–Down Mode
All these features are controlled by four 8–bit registers, the Power Management register (POWM),
the Power Filter register (PFILT), the Power Control register (PCON) and the Clock Reload register
(CKRL).
8.2. Power–On/Off Reset
The Power–On reset ensures a proper starting of the microcontroller.
As long as VDD has not reached the VRST+ threshold, the microcontroller is left under reset and
the oscillator is not enabled. As soon as VDD has reached VRST+, the oscillator is enabled and starts
up.
When the oscillator level on pin XTAL1 has reached the trigger level of the digital monostable, the
reset counter is incremented by the oscillator. When the counter rolls off, it stops the reset system.
This system is not sensitive to the VDD rise time, because the oscillator is only enabled when the
Power Supply (VDD) is stabilized over a reference level.
It is not either sensitive to the frequency, because the width of the reset pulse: tRST is proportional
to the crystal frequency. So this system guarantees a proper starting of the TSC80251A1 by
protecting the reset against random conditions of VDD (See Figure 8.1. ).
VRST+
VDD
VSS
RST
tRST=64xTOSC
Duration of the reset
Figure 8.1. Behavior of the reset when the Power Supply is switched on
Power Monitoring and Management
TSC 80251A1
Rev. B (20/09/96)
II. 8.2
The Power–Off reset ensures a proper stopping of the TSC80251A1 when VDD fails or the Power
Supply is switched off. If VDD reaches the VRST+ threshold, the microcontroller is maintained under
reset until the Power Supply is completely off or VDD has reached again the VRST+ threshold.
This system avoids the TSC80251A1 running while the Power Supply is below the VDD
specification.
It also guarantees a correct behavior of the microcontroller for the external components (See
Figure 8.2. ).
VSS
VRST–
VDD
VRST+
RST
Figure 8.2. Behavior of the reset when the Power Supply is switched off
8.3. Power–Fail Detector
This mechanism is useful for applications which need to save system variables in a non–volatile
memory. This feature monitors VDD and warns the TSC80251A1 by generating an early warning
Power–Fail interrupt when VDD has dropped below the threshold level VFAIL–. In that case
Power–Fail Interrupt Enable bit (PFIE) in IE1 register has to be set and Power–Fail Disable bit (PFD)
has to be cleared. Power–Fail Interrupt Enable bit (PFIE) should have the highest priority (see IS
in paragraph 9).
If VDD drops below VFAIL– and then recovers and reaches VFAIL+ a new interrupt is generated and
Power–Fail flag (PFF) is set in POWM register. The sequence waveform is shown in Figure 8.3.
To improve the noise immunity on VDD, glitches are filtered through a digital filter to allow only
a persistent condition to trigger the internal reset. The filter consists of an 8–bit programmable
counter incremented by the system clock as shown in Figure 8.4. The filtering window is
programmable from 0 to 255 x 2TOSC and is equal to 8 x 2TOSC by default (after reset).
TSC 80251A1
Rev. B (20/09/96) II. 8.3
flag
Power Fail
Interrupt
VFAIL–
VRST+
TRST
VRST+
VDD
RST (Internal)
Power–Off
Power–Fail
flag
cleared by the interrupt service routine
VFAIL+
cleared by the interrupt service routine
cleared by software
Figure 8.3. Power Management timings
VDD Detector Control PFF
VFAIL+
OSC 2
Power–Fail
PFILT register
8–bit counter
Power–Fail
Interrupt request
VFAIL–
PFI
POWM
Figure 8.4. Block diagram of the digital filter
Figure 8.5. shows the principle of in the VDD filtering. A signal is considered as a glitch when its
width is smaller than the time set–up in the 8–bit PFILT register. In this example filtering period is
equal to 6 system clock periods and the A signal is considered as a glitch because its width is less
TSC 80251A1
Rev. B (20/09/96)
II. 8.4
than 6 system clock periods. The B signal is not considered as a glitch and asserts the Power–Fail
interrupt request.
Interrupt request
B
VDD
VFAIL+
VFAIL–
tFILT = 6 x 2 TOSC
width < tFILT (= 6 x 2TOSC)
width > tFILT (= 6 x 2TOSC)
Power–Fail
Window
A
B
A
A
B
Power–Fail
Figure 8.5. Waveforms of the VDD filtering
8.4. Power–Off Flag
The POF bit in PCON register is set to 1 when a hardware reset has been applied during the power
is up. This reset is called ”Cold reset”. If a hardware reset is applied during the microcontroller is
running, POF bit is not set. This reset is called ”Warm reset”. This flag allows to distinguish a cold
from a warm reset and initialization. POF bit is useful in Power–Down mode when it is completed
by a hardware reset. When used, this bit must be cleared by software after “Cold reset”.
8.5. Clock Prescaler
In order to optimize the consumption and the execution time needed for a specific task , an internal
clock prescaler feature has been implemented to program the system clock frequency. It is possible
to work at full speed for all tasks requiring quick response time at low frequency for background tasks
which do not need CPU power but consumption optimizing. Figure 8.6. shows the diagram of the
on–chip oscillator where the clock programming block clearly appears. The CPU clock can be
programmed via 8–bit CKRL register and by setting to one CKSRC bit in POWM register:
FOSC +FXTAL
2(CXRL )1)
TSC 80251A1
Rev. B (20/09/96) II. 8.5
Clock Prescaler
OSC output
CKSRC
CKRL
8–bit Divider
CKSRC
XTAL1
XTAL2
CPU
IDL#
PD# Figure 8.6. Block diagram of the on–chip oscillator
The on–chip oscillator is used to be symbolized by Figure 8.7. in all this datasheet.
OSC OSC output
Figure 8.7. Symbolic of the on–chip oscillator
8.6. Idle Mode
Idle mode is a power reduction mode that reduces the power consumption to about 40% of the typical
running power consumption. In this mode, program execution halts. Idle mode freezes the clock to
the CPU at known states while the peripherals continue to be clocked (See Figure 8.6. ). The CPU
status before entering Idle mode is preserved, i.e., the program counter, program status word register,
and register file retain their data for the duration of Idle mode. The contents of the SFRs and RAM
are also retained. The status of the Port pins depends upon the location of the program memory:
Internal program memory: the ALE and PSEN# pins are pulled high and the Ports 0, 1, 2 and 3
pins are reading data (See Table 8.1. ).
External program memory: the ALE and PSEN# pins are pulled high; the Port 0 pins are floating
and the pins of Ports 1, 2 and 3 are reading data (See Table 8.1. ).
8.6.1. Entering Idle Mode
To enter Idle mode, set IDL bit in PCON register. The TSC80251A1 enters Idle mode upon execution
of the instruction that sets IDL bit. The instruction that sets IDL bit is the last instruction executed.
Caution:
If IDL bit and PD bit are set simultaneously, the TSC80251A1 enters Power–Down mode.
8.6.2. Exiting Idle Mode
There are two ways to exit Idle mode:
Generate an enabled interrupt. Hardware clears IDL bit in the PCON register which restores the
clock to the CPU. Execution resumes with the interrupt service routine. Upon completion of the
TSC 80251A1
Rev. B (20/09/96)
II. 8.6
interrupt service routine, program execution resumes with the instruction immediately following
the instruction that activated Idle mode. The general purpose flags (GF1 and GF0 in PCON
register) may be used to indicate whether an interrupt occurred during normal operation or during
Idle mode. When Idle mode is exited by an interrupt, the interrupt service routine may examine
GF1 and GF0.
Reset the chip. A logic high on the RST pin clears IDL bit in PCON register directly and
asynchronously. This restores the clock to the CPU. Program execution momentarily resumes
with the instruction immediately following the instruction that activated the Idle mode and may
continue for a number of clock cycles before the internal reset algorithm takes control. Reset
initializes the TSC80251A1 and vectors the CPU to address FF:0000h.
Note:
During the time that execution resumes, the internal RAM cannot be accessed; however, it is possible for the Port
pins to be accessed. To avoid unexpected outputs at the Port pins, the instruction immediately following the
instruction that activated Idle mode should not write to a Port pin or to the external RAM.
Table 8.1. Pin conditions in various modes
Mode Program
Memory ALE pin PSEN#
pin Port 0 pin Port 1 pin Port 2 pin Port 3 pin
Reset Don’t care Weak High Weak High Floating Weak High Weak High Weak High
Idle Internal 1 1 Data Data Data Data
Idle External 1 1 Floating Data Data Data
Power–Down Internal 0 0 Data Data Data Data
Power–Down External 0 0 Floating Data Data Data
8.7. Power–Down Mode
The Power–Down mode places the TSC80251A1 in a very low power state. Power–Down mode
stops the oscillator and freezes all clock at known states (See Figure 8.6. ). The CPU status prior to
entering Power–Down mode is preserved, i.e., the program counter, program status word register,
and register file retain their data for the duration of Power–Down mode. In addition, the SFRs and
RAM contents are preserved. The status of the Port pins depends on the location of the program
memory:
Internal program memory: the ALE and PSEN# pins are pulled low and the Ports 0, 1, 2 and 3
pins are reading data (See Table 8.1. ).
External program memory: the ALE and PSEN# pins are pulled low; the Port 0 pins are floating
and the pins of Ports 1, 2 and 3 are reading data (See Table 8.1. ).
Note:
VDD may be reduced to as low as 2 V during Power–Down to further reduce power dissipation. Take care,
however, that VDD is not reduced until Power–Down is invoked.
TSC 80251A1
Rev. B (20/09/96) II. 8.7
8.7.1. Entering Power–Down Mode
To enter Power–Down mode, set PD bit in PCON register. The TSC80251A1 enters the
Power–Down mode upon execution of the instruction that sets PD bit. The instruction that sets PD
bit is the last instruction executed.
8.7.2. Exiting Power–Down Mode
Caution:
If VDD was reduced during the Power–Down mode, do not exit Power–Down until VDD is restored to the normal
operating level.
There are two ways to exit the Power–Down mode:
Generate an enabled external interrupt. Hardware clears PD bit in PCON register which starts the
oscillator and restores the clocks to the CPU and peripherals. Execution resumes with the interrupt
service routine. Upon completion of the interrupt service routine, program execution resumes
with the instruction immediately following the instruction that activated Power–Down mode.
Note:
To enable an external interrupt, set EX0 and/or EX1 bit(s) in IE register. The external interrupt used to exit
Power–Down mode must be configured as level sensitive and must be assigned the highest priority. In addition, the
duration of the interrupt must be of sufficient length to allow the oscillator to stabilize.
Generate a reset. A logic high on the RST pin clears PD bit in PCON register directly and
asynchronously. This starts the oscillator and restores the clock to the CPU and peripherals.
Program execution momentarily resumes with the instruction immediately following the
instruction that activated Power–Down and may continue for a number of clock cycles before the
internal reset algorithm takes control. Reset initializes the TSC80251A1 and vectors the CPU to
address FF:0000h.
Note:
During the time that execution resumes, the internal RAM cannot be accessed; however, it is possible for the Port
pins to be accessed. To avoid unexpected outputs at the Port pins, the instruction immediately following the
instruction that activated the Power–Down mode should not write to a Port pin or to the external RAM.
TSC 80251A1
Rev. B (20/09/96)
II. 8.8
8.8. Registers
PCON (87h)
Power Configuration register
SMOD1 SMODO RPD POF GF1 GF0 PD IDL
76543210
Bit
Number Bit
Mnemonic Description
7 SMOD1 Double Baud Rate bit
Set to double the Baud Rate when Timer 1 is used and mode 1, 2 or 3 is
selected in SCON register.
6 SMOD0 SCON Select bit
When cleared, read/write accesses to SCON.7 are to SM0 bit and read/write
accesses to SCON.6 are to SM1 bit.
When set, read/write accesses to SCON.7 are to FE bit and read/write
accesses to SCON.6 are to OVR bit.
See Serial Port Control register (SCON).
5 RPD Recover for Idle/Power–Down bit
Clear to enable only the enable interrupt sources to exit from Idle or
Power–Down mode.
Set to permit to recover from Idle or Power–Down modes using external
interrupt source. If the interrupt source is not enabled, the program simply
continue at the address otherwise it jumps to interrupt service routine.
4 POF Power–Off flag
Set by hardware as VDD rises above 3 V to indicate that the Power has been
off or VDD had fallen below 3 V and that on–chip volatile memory is
indeterminated.
3 GF1 General Purpose flag 1
One use is to indicate whether an interrupt occured during normal operation
or during Idle mode.
2 GF0 General Purpose flag 0
One use is to indicate whether an interrupt occured during normal operation
or during Idle mode.
1 PD Power–Down Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Power–Down mode.
If IDL and PD are both set, PD takes precedence.
0 IDL Idle Mode bit
Cleared by hardware when an interrupt or reset occurs.
Set to activate the Idle mode.
If IDL and PD are both set, PD takes precedence.
Reset Value = 0000 0000B Figure 8.8. PCON register
TSC 80251A1
Rev. B (20/09/96) II. 8.9
PFILT (86h)
Power Filter register (8–bit)
76543210
Reset Value = 0000 1000B Figure 8.9. PFILT register
POWM (8Fh)
Power Management register
CKSRC – – – RSTD PFD PFF PFI
76543210
Bit
Number Bit
Mnemonic Description
7 CKSRC Clock Source bit
Cleared by hardware after a Power-Up. In that case the CPU clock is the
oscillator source divided by two.
Set to enable the programmable clock. In that case the clock is divided by
the value contained in CKRL register.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
3 RSTD Reset Detector Disable bit
Clear to enable the Reset detector.
Set to disable the Reset detector.
2 PFD Power-Fail Disable bit
Clear to enable the Power-Fail detector.
Set to disable the Power-Fail detector.
1 PFF Power-Fail Flag bit
Cleared by hardware after a reset or when VDD falls from VFAIL+ to VFAIL–.
Set by hardware when VDD rises from VFAIL– to VFAIL+.
This bit may be cleared by software.
0 PFI Power-Fail Interrupt flag bit
Must be cleared by software.
Set by hardware when VDD falls from VFAIL+ to VFAIL–, or when VDD rises
from VFAIL– to VFAIL+.
Reset Value = 0000 0000B Figure 8.10. POWM register
TSC 80251A1
Rev. B (20/09/96)
II. 8.10
CKRL (8Eh)
Clock Reload register (8–bit)
76543210
Reset Value = 0000 1000B
Figure 8.11. CKRL register
TSC 80251A1
Rev. B (20/09/96) II. 9.1
9.1. Introduction
The TSC80251A1, like other control–oriented computer architectures, employs a program interrupt
method. This operation branches to a subroutine and performs some service in response to the
interrupt. When the subroutine completes, execution resumes at the point where the interrupt
occurred. Interrupts may occur as a result of internal TSC80251A1 activity (e.g., Timer overflow)
or at the initiation of electrical signals external to the microcontroller (e.g., Serial Port
communication). In all cases, interrupt operation is programmed by the system designer, who
determines priority of interrupt service relative to normal code execution and other interrupt service
routines. Thirteen of the fourteen interrupts are enabled or disabled by the system designer and may
be manipulated dynamically.
A typical interrupt event chain occurs as follows:
An internal or external device initiates an interrupt–request signal.
This signal, connected to an input pin and periodically sampled by the TSC80251A1, latches the
event into a flag buffer.
The priority of the flag is compared to the priority of other interrupts by the interrupt handler.
A high priority causes the handler to set an interrupt flag.
This signals the instruction execution unit to execute a context switch. This context switch breaks
the current flow of instruction sequences. The execution unit completes the current instruction
prior to a save of the program counter (PC) and reloads the PC with the start address of a software
service routine.
The software service routine executes assigned tasks and as a final activity performs a RETI
(return from interrupt) instruction. This instruction signals completion of the interrupt, resets the
interrupt–in–progress priority and reloads the program counter. Program operation then continues
from the original point of interruption.
Table 9.1. Interrupt system signals
Mnemonic Type Description Multiplexed
with
INT0# I External Interrupt 0
This input sets IE0 bit in TCON register.
If IT0 bit in TCON register is set, IE0 bit is controlled by a
negative edge trigger on INT0#. If IT0 bit in TCON register
is cleared, IE0 bit is controlled by a low level trigger on
INT0#.
P3.2
INT1# I External Interrupt 1
This input sets IE1 bit in TCON register.
If IT1 bit in TCON register is set, IE1 bit is controlled by a
negative edge trigger on INT1#. If IT1 bit in TCON register
is cleared, IE1 bit is controlled by a low level trigger on
INT1#.
P3.3
Interrupt System
TSC 80251A1
Rev. B (20/09/96)
II. 9.2
Table 9.2. Interrupt System SFRs
Mnemonic Description Address
IE0 Interrupt Enable register
Used to enable and disable the eight lowest programmable interrupts.
The reset value of this register is zero (interrupts disabled).
S:A8h
IE1 Interrupt Enable register
Used to enable and disable the eight highest programmable interrupts.
The reset value of this register is zero (interrupts disabled).
S:B1h
IPL0 Interrupt Priority Low register 0
Establishes relative four–level priority for the eight lowest programmable
interrupts.
Used in conjunction with IPH0.
S:B8h
IPH0 Interrupt Priority High register 0
Establishes relative four–level priority for the eight lowest programmable
interrupts.
Used in conjunction with IPL0.
S:B7h
IPL1 Interrupt Priority Low register 1
Establishes relative four–level priority for the eight lowest programmable
interrupts.
Used in conjunction with IPH1.
S:B2h
IPH1 Interrupt Priority High register 1
Establishes relative four–level priority for the eight highest programmable
interrupts.
Used in conjunction with IPL1.
S:B3h
The TSC80251A1 has one software interrupt: TRAP and thirteen peripheral interrupt sources: two
external (INT0# and INT1#), one for Timer 0, one for Timer 1, one for Serial Port, one for Pulse
Measurement Unit, five for Event and Waveform Controller, one for Analog to Digital Converter,
one for Power–Fail detector.
Note:
NMI interrupt source is not implemented in this derivative.
Six interrupt registers are used to control the interrupt system. T wo 8–bit registers are used to enable
separately the interrupt sources: IE0 and IE1 (See Figure 9.1 and Figure 9.2).
Four 8–bit registers are used to establish the priority level of the sixteen sources: IPL0, IPH0, IPL1
and IPH1 (See Figure 9.3, Figure 9.4, Figure 9.5 and Figure 9.6).
9.2. Interrupt System Priorities
Each of the thirteen interrupt sources on the TSC80251A1 may be individually programmed to one
of four priority levels. This is accomplished by one bit in the Interrupt Priority High registers (IPH0
or IPH1, see Figure 9.4. and Figure 9.5. ) and one in the Interrupt Priority Low registers (IPL0 or
IPL1, see Figure 9.6. and Figure 9.7. ) This provides each interrupt source four possible priority
levels select bits (See Table 9.3. ).
TSC 80251A1
Rev. B (20/09/96) II. 9.3
Table 9.3. Level of Priority
IPHxx IPLxx Priority Level
0 0 0 Lowest
0 1 1
1 0 2
1 1 3 Highest
A low–priority interrupt is always interrupted by a higher priority interrupt but not by another
interrupt of lower priority. Higher priority interrupts are serviced before lower priority interrupts.
The response to simultaneous occurrence of equal priority interrupts (i.e., sampled within the same
four state interrupt cycle) is determined by a hardware priority–within–level resolver (See
Table 9.4. ).
Table 9.4. Interrupt priority within level
Interrupt Name Priority Number Interrupt Address
Vectors
Interrupt request flag
cleared by hardware (H)
or by software (S)
TRAP 1
Highest Priority
not interruptible
FF:007Bh –
Reserved – FF:003Bh –
INT0# 3 FF:0003h H if edge, S if level
Timer 0 4 FF:000Bh H if edge, S if level
INT1# 5 FF:0013h H if edge, S if level
Timer 1 6 FF:001Bh H
Serial Port 7 FF:0023h S
A/D converter 8 FF:002Bh S
EWC0 9 FF:0033h S
PMU 10 FF:0043h S
EWC1 11 FF:004Bh S
EWC2 12 FF:0053h S
EWC3 13 FF:005Bh S
EWC4 14 FF:0063h S
Reserved 15 FF:006Bh –
Reserved 16 FF:0073h –
Power–Fail 17
Lowest Priority FF:0083h S
TSC 80251A1
Rev. B (20/09/96)
II. 9.4
9.3. External Interrupts
External interrupts INT0# and INT1# (INTn#, n = 0, 1) pins may each be programmed to be
level–triggered or edge–triggered, dependent upon bits IT0 and IT1 (ITn, n = 0, 1) in TCON register.
If ITn = 0, INTn# is triggered by a low level at the pin. If ITn = 1, INTn# is negative–edge triggered.
External interrupts are enabled with bits EX0 and EX1 (EXn, n = 0, 1) in IE0 register. Events on
INTn# set the interrupt request flag IEn in TCON. A request bit is cleared by hardware vectors
to service routines only if the interrupt is edge triggered. If the interrupt is level–triggered, the
interrupt service routine must clear the request bit. External hardware must deassert INTn# before
the service routine completes, or an additional interrupt is requested. External interrupt pins must
be deasserted for at least four state times prior to a request.
External interrupt pins are sampled once every four state times (a frame length of 500 ns at 16 MHz).
A level–triggered interrupt pin held low or high for five–state time period guarantees detection.
Edge–triggered external interrupts must hold the request pin low for at least five state times. This
ensures edge recognition and sets interrupt request bit EXn. The CPU clears EXn automatically
during service routine fetch cycles for edge–triggered interrupts.
Level–Triggered interrupt
4 states
5 states
4 states
5 states
Edge–Triggered Interrupt
4 states 4 states
5 states
Figure 9.1. Minimum pulse timings.
TSC 80251A1
Rev. B (20/09/96) II. 9.5
9.4. Registers
IE0 (0A8h)
Interrupt Enable 0 register
EA EC EADC ES ET1 EX1 ET0 EX0
76543210
Bit
Number Bit
Mnemonic Description
7 EA Global Interrupt Enable bit
Clear to disable all interrupts that are individually disabled by bits 6:0 in
IE0 register and bits 6:0 in IE1 register.
Set to enable all interrupts that are individually enabled by bits 6:0 in
IE0 register and bits 6:0 in IE1 register.
6 EC Enable Counter Interrupt bit
Clear to disable EWC interrupt.
Set to enable EWC interrupt.
5 EADC Enable Analog to Digital Converter Interrupt bit
Clear to disable ADC interrupt.
Set to enable ADC interrupt.
4 ES Enable Serial Port Interrupt bit
Clear to disable Serial Port interrupt.
Set to enable Serial Port interrupt.
3 ET1 Enable T imer 1 Interrupt bit
Clear to disable Timer 1 overflow interrupt.
Set to enable Timer 1 overflow interrupt.
2 EX1 Enable External 1 Interrupt bit
Clear to disable external interrupt 1.
Set to enable external interrupt 1.
1 ET0 Enable T imer 0 Interrupt bit
Clear to disable Timer 0 overflow interrupt.
Set to enable Timer 0 overflow interrupt.
0 EX0 Enable External 0 Interrupt bit
Clear to disable External interrupt 0.
Set to enable External interrupt 0.
Reset Value = 0000 0000B Figure 9.2. IE0 register
TSC 80251A1
Rev. B (20/09/96)
II. 9.6
IE1 (0B1h)
Interrupt Enable 1 register
PFIE – – EC4 EC3 EC2 EC1 PMU
76543210
Bit
Number Bit
Mnemonic Description
7 PFIE Power-Fail Interrupt Enable bit
Clear to disable the Power-Fail interrupt.
Set to enable the Power-Fail interrupt.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 EC4 Enable Counter 4 Interrupt bit
Clear to disable the EWCn Counter 4 interrupt.
Set to enable the EWCn Counter 4 interrupt.
3 EC3 Enable Counter 3 Interrupt bit
Clear to disable the EWCn Counter 3 interrupt.
Set to enable the EWCn Counter 3 interrupt.
2 EC2 Enable Counter 2 Interrupt bit
Clear to disable the EWCn Counter 2 interrupt.
Set to enable the EWCn Counter 2 interrupt.
1 EC1 Enable Counter 1 Interrupt bit
Clear to disable the EWCn Counter 1 interrupt.
Set to enable the EWCn Counter 1 interrupt.
0 EPMU Enable Pulse Measurement Unit Interrupt bit
Clear to disable the PMU interrupt.
Set to enable the PMU interrupt.
Reset Value = 0000 0000B Figure 9.3. IE1 register
TSC 80251A1
Rev. B (20/09/96) II. 9.7
IPH0 (0B7h)
Interrupt Priority High 0 register
– IPHC IPHADC IPHS IPHT1 IPHX1 IPHT0 IPHX0
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate. Do not set this bit
6 IPHC EWC Counter Interrupt Priority level most significant bit
IPHC IPLC Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
5 IPHADC ADC Interrupt Priority level most significant bit
IPHADC IPLADC Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
4 IPHS Serial Port Interrupt Priority level most significant bit
IPHS IPLS Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
3 IPHT1 Timer 1 Interrupt Priority level most significant bit
IPHT1 IPLT1 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
2 IPHX1 External Interrupt 1 Priority level most significant bit
IPHX1 IPLX1 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
1 IPHT0 Timer 0 Interrupt Priority level most significant bit
IPHT0 IPLT0 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
0 IPHX0 External Interrupt 0 Priority level most significant bit
IPHX0 IPLX0 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
Reset Value = X000 0000B Figure 9.4. IPH0 register
TSC 80251A1
Rev. B (20/09/96)
II. 9.8
IPH1 (0B1h)
Interrupt Priority High 1 register
IPHPF – – IPHC4 IPHC3 IPHC2 IPHC1 IPHPMU
76543210
Bit
Number Bit
Mnemonic Description
7 IPHPF Power–Fail Interrupt Priority level most significant bit
IPHPF IPLPF Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
6 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate. Do not set this bit.
4 IPHC4 EWC Counter 4 Interrupt Priority level most significant bit
IPHEC4 IPLEC4 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
3 IPHC3 EWC Counter 3 Interrupt Priority level most significant bit
IPHEC3 IPLEC3 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
2 IPHC2 EWC Counter 2 Interrupt Priority level most significant bit
IPHEC2 IPLEC2 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
1 IPHC1 EWC Counter 1 Interrupt Priority level most significant bit
IPHEC1 IPLEC1 Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
0 IPHPMU PMU Interrupt 0 Priority level most significant bit
IPHPMU IPLPMU Priority level
0 0 0 Lowest priority
011
102
1 1 3 Highest priority
Reset Value = X000 0000B Figure 9.5. IPH1 register
TSC 80251A1
Rev. B (20/09/96) II. 9.9
IPL0 (0B8h)
Interrupt Priority Low 0 register
– IPLC IPLADC IPLS IPLT1 IPLX1 IPLT0 IPLX0
76543210
Bit
Number Bit
Mnemonic Description
7 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
6 IPLC EWC Counter Interrupt Priority level most significant bit.
Refer to IPHC for priority level.
5 IPLADC ADC Interrupt Priority level most significant bit.
Refer to IPHADC for priority level.
4 IPLS Serial Port Interrupt Priority level most significant bit.
Refer to IPHS for priority level.
3 IPLT1 Timer 1 Interrupt Priority level most significant bit.
Refer to IPHT1 for priority level.
2 IPLX1 External Interrupt 1 Priority level most significant bit.
Refer to IPHX1 for priority level.
1 IPLT0 Timer 0 Interrupt Priority level most significant bit.
Refer to IPHT0 for priority level.
0 IPLX0 External Interrupt 0 Priority level most significant bit.
Refer to IPHX0 for priority level.
Reset Value = X000 0000B Figure 9.6. IPL0 register
TSC 80251A1
Rev. B (20/09/96)
II. 9.10
IPL1 (0B2h)
Interrupt Priority Low 1 register
IPLPF – – IPLC4 IPLC3 IPLC2 IPLC1 IPLPMU
76543210
Bit
Number Bit
Mnemonic Description
7 IPLPF Power–Fail Interrupt Priority level most significant bit.
Refer to IPHPF for priority level.
6 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
5 – Reserved
The value read from this bit is indeterminate.
Do not set this bit.
4 IPLC4 EWC Counter 4 Interrupt Priority level most significant bit.
Refer to IPHEC4 for priority level.
3 IPLC3 EWC Counter 3 Interrupt Priority level most significant bit.
Refer to IPHEC3 for priority level.
2 IPLC2 EWC Counter 2 Interrupt Priority level most significant bit.
Refer to IPHEC2 for priority level.
1 IPLC1 EWC Counter 1 Interrupt Priority level most significant bit.
Refer to IPHEC1 for priority level.
0 IPLPMU PMU Interrupt Priority level most significant bit.
Refer to IPHPMU for priority level.
Reset Value = X000 0000B Figure 9.7. IPL1 register
TSC 80251A1
Section III
Electrical and Mechanical Information
TSC 80251A1
Rev. B (20/09/96) III. 1.1
Table 1.1. Absolute maximum ratings
Ambient Temperature Under Bias
Commercial . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automotive . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature . . . . . . . . . . . . . . . . . . . . . .
Voltage on EA#/VPP Pin to VSS . . . . . . . . . . . .
Voltage on any other Pin to VSS . . . . . . . . . . . .
IOL per I/O Pin . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . .
0 to +70°C
–40 to +85°C
0 to +125°C
–65 to +150°C
0 to +13.0 V
–0.5 to +6.5 V
15 mA
1.5 W
Note:
Stresses at or above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating
conditions may affect device reliability.
Table 1.2. DC characteristics
Parameter values applied to all devices unless otherwise indicated.
Commercial Industrial Automotive
TA = 0 to 70°C
VSS = 0 V
VDD = 5 V ± 10 %
TA = –40 +85°C
VSS = 0 V
VDD = 5 V ± 10 %
TA = –40 +125°C
VSS = 0 V
VDD = 5 V ± 10 %
Symbol Parameter Min Typical
(4) Max Units Test Conditions
VIL Input Low Voltage
(except EA#) –0.5 0.2VDD - 0.1 V
VIL1 Input Low Voltage
(EA#) 00.2VDD - 0.3 V
VIH Input high Voltage
(except XTAL1, RST) 0.2VDD + 0.9 VDD + 0.5 V
VIH1 Input high Voltage
(XTAL1) 0.7 VDD VDD + 0.5 V
VOL Output Low Voltage
(Ports 1, 2, 3) 0.3
0.45
1.0
V IOL = 100 µA
IOL = 1.6 mA
IOL = 3.5 mA
(1, 2)
VRST+Reset threshold on 3.7 V
VRST–Reset threshold off 3.3 V
DC characteristics
TSC 80251A1
Rev. B (20/09/96)
III. 1.2
Test ConditionsUnitsMax
Typical
(4)
MinParameterSymbol
VFAIL+VDD–Fail threshold on 4.2 V
VFAIL–VDD–Fail threshold off 4.1 V
VOL1 Output Low Voltage
(Ports 0, ALE, PSEN#) 0.3
0.45
1.0
V IOL = 200 µA
IOL = 3.2 mA
IOL = 7.0 mA
(1, 2)
VOH Output high Voltage
(Ports 1, 2, 3, ALE,
PSEN#)
VDD –0.3
VDD –0.7
VDD –1.5
V IOH = –10 µA
IOH = –30 µA
IOH = –60 µA
(3)
VOH1 Output high Voltage
(Port 0 in External
Address)
VDD –0.3
VDD –0.7
VDD –1.5
V IOH = –200 µA
IOH = –3.2 mA
IOH = –7.0 mA
VOH2 Output high Voltage
(Port 2 in External
Address during Page
Mode)
VDD –0.3
VDD –0.7
VDD –1.5
V IOH = –200 µA
IOH = –3.2 mA
IOH = –7.0 mA
IIL Logical 0 Input Current
(Ports 1, 2, 3) - 50
- 75 µA VIN = 0.45 V
Automotive
range
ILI Input Leakage Current
(Port 0) ± 10 µA0.45<VIN<VDD
ITL Logical 1-to-0 Transition
Current
(Ports 1, 2, 3)
- 650 µAVIN = 2.0 V
RRST RST Pull–Down Resistor 40 225 kW
CIO Pin Capacitance 10 pF FOSC = 16 MHz
TA = 25°C
IPD Powerdown Current 20 µA
I
Idl M d C t
15 mA FOSC = 16 MHz
IDL Idle Mode Current 10 mA FOSC = 12 MHz
TSC 80251A1
Rev. B (20/09/96) III. 1.3
Test ConditionsUnitsMax
Typical
(4)
MinParameterSymbol
I
OtiC t
50 mA FOSC = 16 MHz
IDD Operating Current 40 mA FOSC = 12 MHz
Notes:
1. Under steady–state (non–transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA. . . . . . . . . . . . . . . . . .
Maximum IOL per 8–bit port: Port 0 26 mA. . . . . . .
Ports 1-3 15 mA. . . .
Maximum Total IOL for all: Output Pins 71 mA. .
If IOL exceeds the test conditions, VOL may exceed the related specification. Pins are not guaranteed to sink
current greater than the listed test conditions.
2. Capacitive loading on Ports 0 and 2 may cause spurious noise pulses above 0.4 V on the low–level outputs of
ALE and Ports 1, 2, and 3. The noise is due to external bus capacitance discharging into the Port 0 and Port 2
pins when these pins change from high to low. In applications where capacitive loading exceeds 100 pF, the
noise pulses on these signals may exceed 0.8 V. It may be desirable to qualify ALE or other signals with a
Schmitt Trigger or CMOS–level input logic.
3. Capacitive loading on Ports 0 and 2 causes the VOH on ALE and PSEN# to drop below the specification when
the address lines are stabilizing.
4. Typical values are obtained using VDD = 5 V and TA = 25°C with no guarantee.
They are not tested and there is not guarantee on these values.
XTAL2
XTAL1
VSS
VDD
EA#
P0
TSC80251A1
VDD
RST
IPD
(NC)
All other pins are unconnected
+5V
Clock Signal
Figure 1.1. IPD Test Condition, Power–Down mode
TSC 80251A1
Rev. B (20/09/96)
III. 1.4
+5V
XTAL2
XTAL1
VSS
VDD
EA#
P0
TSC80251A1
VDD
RST
IDL
(NC)
All other pins are unconnected
Clock Signal
Figure 1.2. IDL Test Condition, Idle mode
+5V
XTAL2
XTAL1
VSS
VDD
EA#
P0
TSC80251A1
VDD
RST
IDD
(NC)
All other pins are unconnected
VDD
Clock Signal
Figure 1.3. IDD Test Condition, Active mode
TSC 80251A1
Rev. B (20/09/96) III. 2.1
Table 2.1. AC characteristics (Capacitive Loading = 50 pF)
Symbol
Parameter
12 MHz 16 MHz FOSC
Un
i
ts
Symbol Parameter Min Max Min Max Min Max Units
TOSC 1/FOSC 83 63 ns
TLHLL ALE Pulse Width 73 53 T OSC -10 ns (2)
TAVLL Address Valid to ALE Low 63 43 TOSC - 20 ns (2)
TLLAX Address hold after ALE
Low 63 43 TOSC - 20 ns
TRLRH
(1) RD# or PSEN# Pulse Width 65 45 TOSC - 18 ns (3)
TWLWH WR# Pulse Width 65 45 TOSC - 18 ns (3)
TLLRL
(1) ALE Low to RD# or PSEN#
Low 73 53 TOSC - 10 ns
TRHRL ALE High to RD# or PSEN#
High 73 53 TOSC - 10 ns
TLHAX ALE high to Address hold 147 105 2TOSC - 20 ns (2)
TRLDV
(1) RD# or PSEN# Low to Valid
Data/Instruction. 33 13 TOSC - 50 ns (3)
TRHDX
(1) Data/Instruct. hold After
RD# or PSEN# high 0 0 0 ns
TRLAZ
(1) RD#/PSEN# Low to
Address Float 2 2 2 ns
TRHDZ
(1) Data/Instruct. Float After
RD# or PSEN# high 63 43 TOSC - 20 ns
TRHLH1
(1) RD#/PSEN# high to ALE
high (Instruction) 68 48 TOSC - 15 ns (1)
TRHLH2
(1) RD#/PSEN# high to ALE
high (Data) 235 173 3TOSC - 15 ns (1)
TWHLH WR# high to ALE high 235 173 3TOSC - 15 ns
TAVDV1 Address (P0) Valid to Valid
Data/Instruction In 190 128 3TOSC - 60 ns
(2, 3, 4)
TAVDV2 Address (P2) Valid to Valid
Data/Instruction In 273 190 4TOSC - 60 ns
(2, 3, 4,)
TAVDV3 Address (P0) Valid to Valid
Instruction In 107 107 2TOSC - 60 ns
AC characteristics
TSC 80251A1
Rev. B (20/09/96)
III. 2.2
Units
FOSC
16 MHz12 MHz
ParameterSymbol Units
MaxMinMaxMinMaxMin
ParameterSymbol
TAVRL Address Valid to
RD#/PSEN# Low 143 101 2TOSC - 24 ns (2)
TAVWL1 Address (P0) Valid to WR#
Low 143 101 2TOSC - 24 ns (2)
TAVWL2 Address (P2) Valid to WR#
Low 220 158 3TOSC - 30 ns (2)
TWHQX Data hold after WR# high 63 43 TOSC - 20 ns
TQVWH Data Valid to WR# high 58 38 TOSC - 25 ns (3)
TWHAX WR# high to Address hold 147 105 2TOSC - 20 ns
TXLXL Serial Port Clock Cycle
Time 1000 750 12 TOSC ns
TQVSH Output Data Setup to Clock
Rising Edge 870 620 12 TOSC - 133 ns
TXHQX Output Data hold after
Clock Rising Edge 720 510 10 TOSC - 117 ns
TXHDX Input Data Hold after Clock
Rising Edge 0 0 0 ns
TXHDV Clock Rising Edge to Input
Data Valid 700 500 10 TOSC - 133 ns
Notes :
1. Specifications for PSEN# are identical to those for RD#.
2. If a wait state is added by extending ALE, add 2TOSC.
3. If a wait state is added by extending RD#/PSEN#/WR#, add 2TOSC.
4. If wait states are added as described in both Note 2 and Note 3, add a total of 4TOSC.
TSC 80251A1
Rev. B (20/09/96) III. 2.3
TRHLH1
TRLRHK
TLLRLK
TLHLLK
TRLDVK
TRLAZ
TAVLLKTLLAX TRHDX
TRHDZ
TAVRLK
TAVDV1K
TAVDV2K
P2
P0
PSEN#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A15:8
TLHAXK
D7:0
A7:0
Instruction In
Figure 2.1. External Instruction Bus Cycle in non–page mode
TRHLH2
TRLRHK
TLLRLK
TLHLLK
TRLDVK
TRLAZ
TAVLLKTLLAX TRHDX
TRHDZ
TAVRLK
TAVDV1K
TAVDV2K
P2
P0
PSEN#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A15:8
TLHAXK
D7:0
A7:0
Data In
Figure 2.2. External Data Read Cycle in non–page mode
TSC 80251A1
Rev. B (20/09/96)
III. 2.4
TWHLH
TWLWHK
TLHLLK
TAVLLKTLLAX
TAVWL1K
TAVWL2K
P2
P0
WR#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A15:8
TLHAXK
D7:0
TQVWH
A7:0
TWHAX
TWHQX
Data Out
Figure 2.3. External Write Data Bus Cycle in non–page mode
TRLRHK
TLLRLK
TLHLLK
TRLDVK
TRLAZ
TAVLLKTLLAX TRHDX
TRHDZ
TAVRLK
TAVDV1K
TAVDV2K
P2
P0
PSEN#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A7:0
TLHAXK
D7:0
A15:8
Instruction In Instruction In
TRHLH1
D7:0
A7:0
Page Miss KK Page hit KK
KK A page hit (i.e., a code fetch to the same 256-byte “page” as the previous code fetch) requires one state
(2TOSC); a page miss requires two states (4TOSC).
TAVDV3K
TRHRL
Figure 2.4. External Instruction Bus Cycle in page mode
TSC 80251A1
Rev. B (20/09/96) III. 2.5
TRHLH2
TRLRHK
TLLRLK
TLHLLK
TRLDVK
TRLAZ
TAVLLKTLLAX TRHDX
TRHDZ
TAVRLK
TAVDV1K
TAVDV2K
P2
P0
RD#PSEN#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A7:0
TLHAXK
A15:8
Data In
D7:0
Figure 2.5. External Read Data Bus Cycle in page mode
TWHLH
TWLWHK
TLHLLK
TAVLLKTLLAX
TAVWL1K
TAVWL2K
P2
P0
WR#
ALE
K The value of this parameter depends on wait states. See the table of AC characteristics.
A7:0
TLHAXK
D7:0
TQVWH
TWHAX
TWHQX
Data Out
A15:8
Figure 2.6. External Write Data Bus Cycle in page mode
TSC 80251A1
Rev. B (20/09/96)
III. 2.6
Valid Valid Valid Valid Valid Valid ValidValid
01 23 45 6 7
T
XLXL
TXHDV TXHDX
TQVXH
TXHQX
TAVK
Set TIK
Set RIK
TXD
RXD
(Out)
RXD
(In)
K TI and RI are set during S1P1 of the peripheral cycle following the shift of the eight bit.
Figure 2.7. Serial Port Waveform – Shift Register mode
Notation for timing parameters name
A = Address D = Data E = Enable G = PROG# H = high L = Low
Q = Data out S = Supply (VPP ) V = Valid X = No Longer Valid Z = Floating
TSC 80251A1
Rev. B (20/09/96) III. 3.1
Table 3.1. A/D Converter electrical characteristics
Commercial Industrial Automotive
TA = 0 to 70°C
VSS = 0 V
VDD = 5 V ± 10 %
FOSC = 1 to 16 MHz
TA = –40 to +85°C ;
VSS = 0 V
VDD = 5 V ± 10 %
FOSC = 1 to 16 MHz
TA = –40 to +125°C
VSS = 0 V
VDD = 5 V ± 10 %
FOSC = 1 to 12 MHz
Symbol Parameter Test Conditions Min Max Unit
AVDD Analog supply voltage AVDD = VDD±0.2V 4.50 5.50 V
AIDD Analog supply current: operating Port 1 = 0 to AVDD 1.20 mA
AVIN Analog input voltage AVSS–0.2 AVDD+0.2 V
Vref Reference voltage AVSS–0.2 AVDD+0.2 V
Rref Resistance between Vref and AVSS 1 10 kΩ
CIA Analog input capacitance 15 pF
tADS Sampling time 108 TOSC 6.757 at 16 MHz
9 at 12 MHz
108 at 1 MHz
µs
tADC Conversion time (including sam-
pling time) 600 TOSC 37.5 at 16 MHz
50 at 12 MHz
600 at 1 MHz
µs
DLe Differential non–linearity1,2 ±1 LSB
ILe Integral non–linearity1,3 ±1LSB
OSe Offest error1,4 ±1 LSB
Ge Gain error1,5 0,40 %
MCTC Channel to channel matching ±1 LSB
CtCrosstalk between inputs of Port 16 0 to 100 kHz –60 dB
TOSC Oscillator Clock Period Com, Ind = 62
Auto = 83 1000 ns
Notes:
1. Conditions : AVDD = 5.V; VREF = 5.12V. ADC is monotonic with no missing codes.
2. The differential non–linearity (DLe) is the difference between the actual step width and the ideal step width.
(See Figure 3.1. )
3. The integral non–linearity (ILe) is the peak difference between the center of the steps of the actual and the
ideal transfer curve after appropriate adjustment of gain and offset error. (See Figure 3.1. )
4. The offset error (OSe) is the absolute difference between the straight line which fits the actual transfer curve
(after removing gain error), and a straight line which fits the ideal transfer curve. (See Figure 3.1. )
5. The gain error (Ge) is the relative difference in percent between the straight line fitting the actual transfer
curve (after removing offset error), and the straight line which fits the ideal transfer curve. Gain error is constant
at every point on the transfer curve. (See Figure 3.1. )
6. This should be considered when both analog and digital signals are simultaneously input to Port 1.
ADC characteristics
TSC 80251A1
Rev. B (20/09/96)
III. 3.2
467 253 254 255 256
123 5
1
2
3
4
5
6
7
252
253
254
255
0
(Code Out)
AVIN (LSBideal)
(1)
(2)
Offset error OS
1 LSB
(ideal)
(3)
(Offset error Gain Error)
Offset error OSOffset error OSe
OSe Ge
(5)
(4)
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) Differential non–linearity (DLe)
(5) Center of a step of the actual transfer curve
(4) Integral on–linearity (ILe)
8
9
8252
9
Figure 3.1. A/D conversion characteristic
TSC 80251A1
Rev. B (20/09/96) III. 4.1
4.1. Programming modes
The TSC87251A1 derivatives in Window CQPJ are erasable by UV which set all the EPROM
memory cells to one and allows a reprogrammation. The other TSC87251A1 derivatives are one time
programmable as an EPROM cell cannot be reset once programmed to 0. Table 4.1. shows the
hardware setup needed to program the TSC87251A1 EPROM areas:
The chip has to be maintained under reset and the PSEN# has to be to forced to 0 until the
completion of the programming sequence.
The programming address are applied on Ports 1 and 3 which are respectively the upper and lower
address lines.
The programming data are applied on Port 2.
The EPROM programming is done by applying VPP on the EA# pin and by generating 5 pulses
on ALE/PROG# pin for the on–chip code memory and 25 for the configuration bytes.
Table 4.1. EPROM programming configuration
EPROM Mode RST EA# PSEN# ALE P0 P2 P1(Upper)P3(Lower) Notes
On–chip code memory 1 VPP 0 5 Pulses 68h Data 0000h-5FFFh 1
Configuration bytes 1 VPP 0 25 Pulses 69h Data 0080h-0081h 1
Notes:
1. The ALE/PROG# pulse waveform is shown in Figure 4.2.
RST
EA#/VPP
ALE/PROG#
PSEN#
VDD
P3
P1
VSS
XTAL1
P2
P0
VPP
5 x 100 µs
A7:0
A14:8
Mode
PGM Data
+ 5 V
TSC87251A1
VDD
4 to 6 MHz
Figure 4.1. Setup for EPROM programming
EPROM Programming
TSC 80251A1
Rev. B (20/09/96)
III. 4.2
VDD
Mode = 68h or 69h
Data
Address
P1 = A14:8
P3 = A7:0
P2 = D7:0
ALE/PROG#
EA#/VPP
P0
TEHSH
TSHGL
TGLGH
TGHGL
TAVGL
TDVGL TGHDX
123 45
VPP
VSS
TGHAX
Note:
The timing is the same for both programming modes excepted the number of programming pulses. Only 5
programming pulses are shown here.
Figure 4.2. Timings for EPROM programming
TSC 80251A1
Rev. B (20/09/96) III. 4.3
4.2. Verify algorithm
Figure 4.3. show the setup needed to verify the TSC80251A1 EPROM areas. Table 4.2. shows the
configuration needed to verify the on-chip code memory and Configuration bytes. The 15 addresses
must be connected to the Ports 3 and 1. ALE/PROG# and PSEN# are driven low while Port 0 receives
the configuration.
Figure 4.4. shows the timings to apply in orded to execute the EPROM verify mode.
Port 0 drives the verify mode (28h for programming mode).
The address to access is driven on Port 1 and Port 3 while the PSEN# and ALE are driven low.
The data is driven on Port 2, 48 clock periods after the address is stable.
Table 4.2. EPROM verifying configuration
Verify EPROM RST EA# PSEN# ALE P0 P2 P1(Upper) P3(Lower)
On–chip code memory 1 1 0 1 28h Data 0000h-5FFFh
Configuration bytes 1 1 0 1 29h Data 0080h-0083h
ALE/PROG#
RST
EA#/VPP
PSEN#
VDD
P3
P1
VSS
P0
A7:0
A14:8
Mode
+ 5 V
TSC87251A1
VDD
PGM Data
XTAL1
P2
4 to 6 MHz
Figure 4.3. Setup for EPROM verification
TSC 80251A1
Rev. B (20/09/96)
III. 4.4
TELQV TEHQZ
Address
Data
TAQV > = 48 x tclc
P1 = A14:8
P3 = A7:0
P2 = D7:0
P0 Mode = 28h or 29h
Figure 4.4. Timings for EPROM verification
Table 4.3. EPROM programming & verification characteristics
( TA = 21 to 27 °C ; VCC = 5V +/– 0.25V ; VSS= 0 )
Symbol Parameter Min Max Units
VPP Programming Supply Voltage 12,75 13 V
IPP Programming Supply Current 75 mA
TOSC Oscillator Frequency 167 250 ns
TAVGL Address Setup to PROG# low 48TOSC
TGHAX Address Hold after PROG# low 48TOSC
TDVGL Data Setup to PROG# low 48TOSC
TGHDX Data Hold after PROG# 48TOSC
TEHSH ENABLE High to VPP 48TOSC
TSHGL VPP Setup to PROG# low 10 s
TGHSL VPP Hold after PROG# 10 s
TGLGH PROG# Width 90 110 s
TAVQV Address to Data Valid 48TOSC
TELQV ENABLE low to Data Valid 48TOSC
TEHQZ Data Float after ENABLE 0 48TOSC
TGHGL PROG high to PROG# low 10 s
TSC 80C251A1
Rev. B (20/09/96) III. 5.1
5.1. PLCC 44
5.1.1. Mechanical Outline
Figure 5.1. Plastic Lead Chip Carrier
Table 5.1. PLCC chip size
MM INCH
Min Max Min Max
A 4.20 4.57 .165 .180
A1 2.29 3.04 .090 .120
D 17.40 17.65 .685 .695
D1 16.44 16.66 .647 .656
D2 14.99 16.00 .590 .630
E 17.40 17.65 .685 .695
E1 16.44 16.66 .647 .656
E2 14.99 16.00 .590 .630
e1.27 BSC .050 BSC
G 1.07 1.22 .042 .048
H 1.07 1.42 .042 .056
J 0.51 – .020 –
Packages
TSC 80C251A1
Rev. B (20/09/96)
III. 5.2
INCHMM
MaxMinMaxMin
K 0.33 0.53 .013 .021
Nd 11 11
Ne 11 11
PKG STD 00
5.1.2. Pin Assignment
Table 5.2. PLCC pin assignment
Pin Number Pin Name Pin Number Pin Name
1 AVSS 23 P2.0/A8
2 Vref 24 P2.1/A9
3 P1.0/AN0 25 P2.2/A10
4 P1.1/AN1 26 P2.3/A11
5 P1.2/ECI/AN2 27 P2.4/A12
6 P1.3/CEX0/AN3 28 P2.5/A13
7 P1.4/CEX1 29 P2.6/A14
8 P1.5/PMI0/CEX2 30 P2.7/A15
9 P1.6/PMI1CEX3 21 PSEN#
10 P1.7/A17/PMI2/CEX4 32 ALE/PROG#
11 RST 33 VSS0
12 P3.0/RXD 34 VDD0
13 P3.1/TXD 35 EA#/VPP
14 P3.2/INT0# 36 P0.7/AD7
15 P3.3/INT1# 37 P0.6/AD6
16 P3.4/T0 38 P0.5/AD5
17 P3.5/T1 39 P0.4/AD4
18 P3.6/WR# 40 P0.3/AD3
19 P3.7/A16/RD# 41 P0.2/AD2
20 XTAL2 42 P0.1/AD1
21 XTAL1 43 P0.0/AD0
22 VSS1 44 AVDD
TSC 80C251A1
Rev. B (20/09/96) III. 5.3
5.2. CQPJ 44 with Window
5.2.1. Mechanical Outline
Figure 5.2. Ceramic Quad Pack J
Table 5.3. CQPJ chip size
MM INCH
Min Max Min Max
A – 4.90 – .193
C 0.15 0.25 .006 .010
D – E 17.40 17.55 .685 .691
D1 – E1 16.36 16.66 .644 .656
e1.27 TYP .050 TYP
f 0.43 0.53 .017 .021
J 0.86 1.12 .034 .044
Q 15.49 16.00 .610 .630
R 0.86 TYP .034 TYP
N1 11 11
N2 11 11
TSC 80C251A1
Rev. B (20/09/96)
III. 5.4
5.2.2. Pin Assignment
Table 5.4. CQPJ pin assignment
Pin Number Pin Name Pin Number Pin Name
1 P1.4/CEX1 23 P2.6/A14
2 P1.5/PMI0/CEX2 24 P2.7/A15
3 P1.6/PMI1CEX3 25 PSEN#
4 P1.7/A17/PMI2/CEX4 26 ALE/PROG#
5 RST 27 VSS0
6 P3.0/RXD 28 VDD0
7 P3.1/TXD 29 EA#/VPP
8 P3.2/INT0# 30 P0.7/AD7
9 P3.3/INT1# 31 P0.6/AD6
10 P3.4/T0 32 P0.5/AD5
11 P3.5/T1 33 P0.4/AD4
12 P3.6/WR# 34 P0.3/AD3
13 P3.7/A16/RD# 35 P0.2/AD2
14 XTAL2 36 P0.1/AD1
15 XTAL1 37 P0.0/AD0
16 VSS1 38 AVDD
17 P2.0/A8 39 AVSS
18 P2.1/A9 40 Vref
19 P2.2/A10 41 P1.0/AN0
20 P2.3/A11 42 P1.1/AN1
21 P2.4/A12 43 P1.2/ECI/AN2
22 P2.5/A13 44 P1.3/CEX0/AN3
TSC 80C251A1
Rev. B (20/09/96) III. 5.5
5.3. TQFP 44
5.3.1. Mechanical Outline
Figure 5.3. Thin Quad Flat Pack (Plastic)
Table 5.5. TQFP chip size
MM INCH
Min Max Min Max
A – 1.60 – .063
A1 0.64 REF .025 REF
A2 0.64 REF .025REF
A3 1.35 1.45 .053 .057
D 11.90 12.10 .468 .476
D1 9.90 10.10 .390 .398
E 11.90 12.10 .468 .476
E1 9.90 10.10 .390 .398
J 0.05 – .002 6
L 0.45 0.75 .018 .030
e0.80 BSC .0315 BSC
f0.35 BSC .014 BSC
TSC 80C251A1
Rev. B (20/09/96)
III. 5.6
5.3.2. Pin Assignment
Table 5.6. TQFP pin assignment
Pin Number Pin Name Pin Number Pin Name
1 P1.4/CEX1 23 P2.6/A14
2 P1.5/PMI0/CEX2 24 P2.7/A15
3 P1.6/PMI1CEX3 25 PSEN#
4 P1.7/A17/PMI2/CEX4 26 ALE/PROG#
5 RST 27 VSS0
6 P3.0/RXD 28 VDD0
7 P3.1/TXD 29 EA#/VPP
8 P3.2/INT0# 30 P0.7/AD7
9 P3.3/INT1# 31 P0.6/AD6
10 P3.4/T0 32 P0.5/AD5
11 P3.5/T1 33 P0.4/AD4
12 P3.6/WR# 34 P0.3/AD3
13 P3.7/A16/RD# 35 P0.2/AD2
14 XTAL2 36 P0.1/AD1
15 XTAL1 37 P0.0/AD0
16 VSS1 38 AVDD
17 P2.0/A8 39 AVSS
18 P2.1/A9 40 Vref
19 P2.2/A10 41 P1.0/AN0
20 P2.3/A11 42 P1.1/AN1
21 P2.4/A12 43 P1.2/ECI/AN2
22 P2.5/A13 44 P1.3/CEX0/AN3
TSC 80251A1
Section IV
Ordering Information
TSC 80251A1
Rev. B (20/09/96) IV. 1.1
TSC 80251A1 XXX
Customer ROM Code
TEMIC Semiconductor
Microcontroller Product Division
A12
12: 12 MHz version
16: 16 MHz version
Part Number
80251A1: External ROM
87251A1: 24Kbytes
OTP/EPROM
251A1: 24kbytes MaskROM
C
Temperature Range
C : Commercial 0° to 70°C
I : Industrial –40° to 85°C
A: Automotive –55° to 125°C
Packaging
B: PLCC 44
C: Window CQPJ 44
(EPROM version)
D: TQFP 44
B
Conditioning
R : Tape & Reel
D : Dry Pack
B : Tape & Reel
Dry Pack
R
A: Source Mode
B: Binary Mode
–
Examples
Part Number Description
TSC80251A1–A16CBR ROMless, Source Mode, 16 MHz, PLCC 44, 0 to 70°C, Tape and Reel
TSC87251A1–A12CB OTP, Source Mode, 12 MHz, PLCC 44, 0 to 70°C
TSC87251A1–A12CBR EPROM, Source Mode, 12 MHz, PLCC 44, 0 to 70°C, Tape and Reel
Development Tools
Part Number Description
TSC80251A1–SKA Software Starter Kit Keil
TSC80251A1–SKB Software Starter Kit Tasking
TSC80251A1–EKA Evaluation Kit Keil
TSC80251A1–EKB Evaluation Kit Tasking
Product Marking :
TEMIC
Customer P/N
Temic P/N
Intel’95
YYWW Lot Number
M
Ordering information
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Illinois 60192
TEMIC North America Inc.
5401 Trillium BLVD.,Ste.275
Hoffman Estates
Illinois 60192
Tel: 1 847 645 0038
Fax: 1 847 645 0041
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Michigan
TEMIC North America Inc.
Continental Plaza
2701 Troy Center Drive,
Ste.220
Troy
Michigan 48084
Tel: 1 810 244 0610
Fax: 1 810 244 0848
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New Hampshire
TEMIC North America Inc.
c/o Siliconix Inc.
5 Casey Circle Nashua
Nashua
New Hampshire 03062
Tel: 1 603 598 2541
Fax: 1 603 886 9603
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New Jersey
TEMIC North America Inc.
180 Mount Airy Road, Ste.100
Basking Ridge
New Jersey 07920
Tel: 1 908 630 9200
Fax: 1 908 630 9201
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New York
TEMIC North America Inc.
3 River Island Drive
Brewerton
New York 13029
Tel: 1 315 676 4228
Fax: 1 315 676 2244
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TEMIC North America Inc.
16 Rockledge Ave, Ste.56–1
Scarborough
New York 10510
Tel: 1 914 945 0618
Fax: 1 914 945 0769
Addresses
Sales Offices
V. so.2
North America
USA / Mexico
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North Carolina
TEMIC North Carolina
5525 Doemont Drive
Apex
North Carolina 27502
Tel: 1 919 662 9595
Fax: 1 919 662 9520
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Texas
TEMIC North America Inc.
2100 West Loop South, Ste.800
Houston
Texas 77027
Tel: 1 713 297 8871
Fax: 1 713 297 8872
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TEMIC Technical Support
Center
5605 North MacArthur
Blvd.220
Irving
Texas 75038
Tel: 1 214 756 0302
Fax: 1 214 756 0702
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Mexico
TEMIC Mexicana Division
Semiconductorres
13 Sur 505 – 10 Piso
72000 Puebla, PUE
Tel: 525 22 464634
Fax: 525 22 464404
China / Asia Pacific / Japan
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China
TEMIC Shanghai Ltd.
3/F 501 Jiangchang West Road
200436 Shanghai
Tel: 86 21 5677 3398
Fax: 86 21 5603 3194
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Hong Kong
TEMIC Hong Kong Limited
Ste.1701, World Finance
Centre
South Tower, Harbour City
17 Canton Road, Tsimshatsui
Kowloon
Tel: 852 23 789 789
Fax: 852 23 755 733
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India
TEMIC India
8/53 South Patel Nagar
110008 New Delhi
Tel: 91 11 578 9133
Fax: 91 11 578 9133
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Korea
TEMIC Korea
Ste.605, Singsong Bldg.
#25–4, Yoido–Dong
Youngdeungpo–Ku
150–010 Seoul
Tel: 82 2 7851 136
Fax: 82 2 7851 137
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Rep. of Singapore
TEMIC Singapore Pte Ltd
AEG Building, #02–00
25 Tampines Street 92
Singapore 528877
Tel: 65 788 6668
Fax: 65 788 0031
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Taiwan, R.O.C.
TEMIC Taiwan
17F–1, 76, Section 2
Tun Hwa South Road
Taipei City
Tel: 886 2 755 6108
Fax: 886 2 755 4777
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Japan
TEMIC Japan K.K.
Roppongi First Bldg. 17F
1–9–9, Roppongi, Minato–ku
Tokyo 106
Tel: 81 3 5562 3321
Fax: 81 3 5562 3316
TSC 80251A1
Section V
TEMIC Addresses
Representatives
V. rep.1
Europe
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Austria
SEI/Elbatex
Eitnergasse 6
1233 Wien
Tel: 43 1 8160 2215
Fax: 43 1 8160 2400
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Croatia
Dolenc d.o.o.
Ivana Mazuranica 31
10290 Zagreb / Zapresic
Tel: 385 41 704 905
Fax: 385 41 702 769
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Germany
Ing. Buero Rainer Koenig
Giesensdorfer Strasse 11 A
12207 Berlin
Postfach 420, PLZ 12174
Tel: 49 30 7689 090
Fax: 49 30 7689 0930
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Israel
Tritech Ltd.
Ind. Zone
4, Hayetzira Street
43100 RA’ANANA
P.O. Box 2436
Tel: 972 9 917 277
Fax: 972 9 982 616
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Poland
APL
ul. Mokotowska 4/6
00641 Warszawa
Tel: 48 22 256 259
Fax: 48 22 257 276
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Rep. of Ireland
Memec Ireland Ltd.
Gardner House
Bank Place
Limerick
Tel: 353 61 4118 42
Fax: 353 61 4118 88
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Turkey
ERDA elektronik sanayi ve ti-
caret a.s.
Garanti Koza Evleri
Visne 1 Mah.2. SokakNo.1
80936 Zekeriyakoy–Istanbul
Tel: 90 212 2026 318
Fax: 90 212 2026 307
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United Kingdom
BCD Microelectronics Ltd.
Swaffham Bulbeck
3 Station Road
Cambridge CB5 ONB
Tel: 44 1223 8125 98
Fax: 44 1223 8126 86
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Abercorn Electronics Ltd.
Philipstown, Scotland
Pardovan, West Lothian
Linlinthgow EH49 6QZ
Tel: 44 1506 8342 22
Fax: 44 1506 8345 54
North America
USA
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Alabama
Rep. Inc.
11535 Gilleland Road
Huntsville
Alabama 35803
Tel: 1 205 881 9270
Fax: 1 205 882 6692
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Alaska
see Washington
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Á
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Arizona
QuadRep Southern Inc.
40 W. Baseline Road, Ste.116
Tempe
Arizona 85283
Tel: 1 602 839 2102
Fax: 1 602 839 2126
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Á
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Arkansas
see Texas (Arlington)
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Á
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California
QuadRep Southern, Inc.
15215 Alton Parkway, Ste.200
Irvine
California 92130
Tel: 1 714 727 4222
Fax: 1 714 727 4033
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QuadRep Southern Inc.
11995 El Camino Real, Ste.305
San Diego
California 92130
Tel: 1 619 755 1188
Fax: 1 619 793 9269
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QuadRep North, Inc.
2635 North First Street, Ste.116
San Jose
California 95134–2009
Tel: 1 408 432 3300
Fax: 1 408 432 3428
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Colorado
QuadRep Rocky Mtn. Inc.
6500 South Quebec Street,
Ste.210
Englewood
Colorado 80111
Tel: 1 303 771 6886
Fax: 1 303 771 6887
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QuadRep Rocky Mtn. Inc.
19410 Rim of the World
Monument
Colorado 80132
Tel: 1 719 4889 097
Fax: 1 719 4889 312
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Connecticut
see New York (Metro/L.I.)
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Delaware
see New Jersey
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
District of Columbia
see Maryland
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Florida
Naltron Corporation
Southern Office
14460 Greenbriar Place
Davie
Florida 33325
Tel: 1 305 370 9363
Fax: 1 305 370 6188
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Naltron Corporation
Central Office
588 Peregrine Drive
Indialantic
Florida 32903
Tel: 1 407 777 3399
Fax: 1 407 777 2050
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Rep. Inc. South
235 South Maitland, Ste.211
Maitland
Florida 32751
Tel: 1 407 628 4837
Fax: 1 407 645 0356
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Naltron Corporation
110 S. W. 91 Av., Ste.206
Plantation
Florida 33324
Tel: 1 305 236 3580
Fax: 1 305 236 3581
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Naltron Corporation
South
5401 W. Kennedy, Ste.1060
Tampa
Florida 33609
Tel: 1 813 287 1433
Fax: 1 813 287 1746
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Addresses
Representatives
V. rep.2
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Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
Naltron Corporation
4144 Waterview Loop
Winter Park
Florida 32792
Tel: 1 407 657 7003
Fax: 1 407 657 4240
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Á
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Á
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ÁÁÁÁÁÁÁÁ
Georgia
Rep. Inc.
1944 Northlake Parkway, Ste.1
Tucker
Georgia 30084
Tel: 1 404 938 4358
Fax: 1 404 938 0194
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Hawaii
see California
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Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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Á
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ÁÁÁÁÁÁÁÁ
Idaho
QuadRep Northwest
10451 West Garverdale,
Ste.209
Boise
Idaho 83704
Tel: 1 208 375 9868
Fax: 1 208 323 9386
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Á
ÁÁÁÁÁÁ
Á
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Á
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Á
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Illinois
Victory Sales
1030 W. Higgins Road, Ste.101
Hoffman Estates
Illinois (Northern) 60195
Tel: 1 847 490 0300
Fax: 1 847 490 1499
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Indiana
Victory Sales
3077 East 98th Street, Ste.135
Indianapolis
Indiana 46280
Tel: 1 317 581 0880
Fax: 1 317 581 0882
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Iowa
Stan Clothier Company
1930 St. Andrews NE
Cedar Rapids
Iowa 52402
Tel: 1 319 393 1576
Fax: 1 319 393 7317
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Kansas
Stan Clothier Company
13000 West 87th Street Park-
way, Ste.105
Lenexa
Kansas 66215
Tel: 1 913 492 2124
Fax: 1 913 492 1855
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Á
ÁÁÁÁÁÁ
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Kentucky
see Indiana
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Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Louisiana
see Texas (Arlington)
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Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Maine
see Massachusetts
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Maryland
Arbotek Associates, Inc.
2408 Peppermill Drive, Ste.I
Glen Burnie
Maryland 21061
Tel: 1 410 768 5355
Fax: 1 410 768 8118
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Massachusetts
C&D Electronics
90 Carando Drive
Springfield
Massachusetts 01104
Tel: 1 413 781 1776
Fax: 1 413 736 8549
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Technology Sales Inc.
332 Second Avenue
Waltham
Massachusetts 02154
Tel: 1 617 890 5700
Fax: 1 617 890 3913
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Michigan
Victory Sales
39111 W. Six Mile Road
Livonia
Michigan 48152
Tel: 1 313 432 3147
Fax: 1 313 432 3146
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Minnesota
Stan Clothier Company
9600 West 76th Street, Ste.A
Eden Prairie
Minnesota 55344
Tel: 1 612 944 3456
Fax: 1 612 944 6904
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Mississippi
see Alabama
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Missouri
Stan Clothier Company
3910 Old Highway 94, South
Ste.116
St. Charles
Missouri 63304
Tel: 1 314 928 8078
Fax: 1 314 447 5214
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Á
ÁÁÁÁÁÁ
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Montana
see Colorado
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Nebraska
see Kansas
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Á
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Á
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Nevada (Clark County)
see Arizona
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Á
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Nevada
(exc. Clark County)
QuadRep Sierra
987 Tahoe Blvd.
Incline Village
Nevada 89451
Tel: 1 702 832 2701
Fax: 1 702 832 2703
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New Hampshire
see Massachusetts
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Á
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Á
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New Jersey (Northern)
see New York (Metro/L.I.)
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Á
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Á
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New Jersey (Southern)
see Pennsylvania (Eastern)
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New Mexico
see Arizona
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New York
Astrorep Incorporated
103 Cooper Street
Babylon
New York (Metro/L.I.)
Tel: 1 516 422 2500
Fax: 1 516 422 2504
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Technology Sales, Inc.
920 Perinton Hills Office Park
Fairport
New York 14450 (Upstate)
Tel: 1 716 223 7500
Fax: 1 716 223 5526
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North Carolina
Rep, Inc. #062
1026 Forest Oak Drive, Ste.204
Charlotte
North Carolina 28209
Tel: 1 704 521 9982
Fax: 1 704 521 9995
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Rep. Inc.
2500 Gateway Centre Blvd.
Morisville
North Carolina 27560
Tel: 1 919 469 9997
Fax: 1 919 481 3879
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North Dakota
see Minnesota
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Ohio
Victory Sales Inc.
7333 Paragon Road, Suite 210
Centerville
Ohio 45458
Tel: 1 513 436 1222
Fax: 1 513 436 1224
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Victory Sales
32901 Station Street, Ste.104
Solon
Ohio 44139
Tel: 1 216 498 7570
Fax: 1 216 498 7574
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Á
ÁÁÁÁÁÁ
Á
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Oklahoma
see Texas (Arlington)
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Á
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Á
Á
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Oregon
QuadRep Northwest
17020 SW Upr. Boones Fry.
Rd. #202
Portland
Oregon 97224
Tel: 1 503 620 8320
Fax: 1 503 639 4023
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Pennsylvania
(Western)
see Ohio (Solon)
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Á
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Pennsylvania (Eastern)
Astrorep Mid Atlantic Inc.
375 Horsham Road, Ste.200
Horsham, PA. 19044
Pennsylvania
Tel: 1 215 957 9580
Fax: 1 215 957 9583
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Puerto Rico
Technology Sales, Inc.
Edificio Rali, Ste.216
San German
P.O. Box 121
Puerto Rico 00683–0121
Tel: 1 809 892 4745
Fax: 1 809 892 1128
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Á
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Rhode Island
see Massachusetts
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
South Carolina
see North Carolina
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
South Dakota
see Minnesota
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Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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Tennessee
Rep. Inc.
1908 Branner Avenue
Jefferson City
P.O. Box 490
Tennessee 37760
Tel: 1 615 475 9012
Fax: 1 615 475 6340
Representatives
V. rep.3
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Texas
Ion Associates, Inc.
2221 East Lamar, Ste.250
Arlington
Texas 76006
Tel: 1 817 695 8000
Fax: 1 817 695 8010
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Ion Associates, Inc.
9390 Research Blvd., Ste.210
Austin
Texas 78759
Tel: 1 512 794 9006
Fax: 1 512 794 9008
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Ion Associates, Inc.
20405 S.H. 249, Ste.150
Houston
Texas 77070
Tel: 1 713 376 2000
Fax: 1 713 376 2034
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Utah
QuadRep Rocky Mtn. Inc.
180 South 300 West, Ste.231
Salt Lake City
Utah 84101
Tel: 1 801 521 4717
Fax: 1 801 821 4745
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Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Vermont
see Massachusetts
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Virginia
see Maryland
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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Á
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Washington
QuadRep Crown, Inc.
375 118th Avenue, South East,
Ste.110
Bellevue
Washington 98005–3575
Tel: 1 206 453 5100
Fax: 1 206 646 8775
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
West Virginia
see Maryland
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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Á
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Á
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ÁÁÁÁÁÁÁÁ
Wisconsin
Victory Sales
405 North Calhoun Road,
Ste.208
Brookfield
Wisconsin 53005
Tel: 1 414 789 5770
Fax: 1 414 789 5760
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Wyoming
see Colorado
Canada / South America
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
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Á
ÁÁÁÁÁÁÁÁ
Ontario
Dynasty Components Inc.
1 Terence Matthews Guide
Kanata K2M293
Ontario
Tel: 1 613 599 5570
Fax: 1 613 599 5577
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Á
ÁÁÁÁÁÁ
Á
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Brasil
Mikrotron Representacao e
Consultoria S/C Ltda.
Rua Morato Coelho 798, cj.71
05417–001 Sao Paulo–SP
Tel: 55 11 814 7315
Fax: 55 11 815 8790
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Venezuela
Electronica Uribe C.A.
Aptdo. de Correos
Piso 1, Oficina G Calle 3–A, L
Uribina
62621 Caracas
Tel: 58 2 241 2689
Fax: 58 2 241 0192
Asia Pacific
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Australia
Consulaust International Ptv
Ltd
3rd Floor, 10 Bridge Street
Granville, NSW 2142
Tel: 61 2 637 2558
Fax: 61 2 682 4521
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IRH Components
1–5 Carter Street
2128 Silverwater
NSW
Tel: 61 2 364 1766
Fax: 61 2 648 3505
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
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Consulaust International Pty.
Ltd.
15 Shierlaw Avenue
Canterbury
P.O.Box 357, Camberwell
VIC
Tel: 61 3 8362 566
Fax: 61 3 8301 1764
ÁÁÁÁÁÁÁÁ
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Hong Kong
Audio Mechanical Corp. Ltd.
Ste.1701 A World Finance
Centre
South Tower, Harbour City
17, Canton Road, Tsimshatsui
Kowloon
Tel: 852 2 736 8192
Fax: 852 2 735 0926
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Kaolink Trading Company
Unit 12,9/F.,Kodak House,Ph.
2
39 Healthy Street East
North Point
Tel: 852 2 805 5988
Fax: 852 2 805 5922
ÁÁÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁÁÁ
Willias–Array Electronics Ltd.
200 Tai Lin Pai Road
Unit 1,24/F, Wyler Centre
Phase 2
Kwai Chung
N.T.
Tel: 852 2 418 3700
Fax: 852 2 481 6992
ÁÁÁÁÁÁÁÁ
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India
Blue Star Limited
Blue Star House 11/A
Magarath Road
560 025 Bangalore
Tel: 91 80 558 4728
Fax: 91 80 558 4599
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
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Blue Star Limited
Sahas 414/2
Veer Savarkar Marg
400025 Prabhadevi, Bombay
Tel: 91 22 430 6155
Fax: 91 22 430 7078
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Á
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Korea
Changnam Electronics Industry
#44–22, Yoido–Dong
9th Fl., Hosung Bldg.
Seoul
Youngdeungpo–Ku
Tel: 82 2 7820 412
Fax: 82 2 7847 702
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Malaysia
Scan Components (M)
Sdn.Bhd.
11900 Sungei Nibong
761–B, Jalan Sultan Azlan
Shah
Penang
Tel: 60 4 643 5136
Fax: 60 4 643 6320
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Rep. of Singapore
QuadRep Marketing (S)
Pte.Ltd.
#12–05 Parkway Builders
Centre
1 Marine Parade Central
Singapore 449408
Tel: 65 346 1933
Fax: 65 346 1911
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Scan Technology (S) Pte Ltd.
Jurong Industrial Estate
10 Penjuru Lane
Singapore 6091901233
Tel: 65 2 652 655
Fax: 65 2 655 200
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Taiwan, R.O.C.
Uppertech Enterprise Co.,Ltd.
Hsin Tien City
6F, No 92, Pao Chung Road
Taipei
Tel: 886 2 916 1997
Fax: 886 2 914 1152
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World Peace Industrial CS
Ltd.(WPI)
8 F,76 Cheng Kung Road Sec.1
Nanking
Taipei
Tel: 886 2 7885 200
Fax: 886 2 7883 255
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Thailand
Scan Technology (T) Pte Ltd
93/37 Modern Group Building
Chaeng Wattana Road
Pakkred Nontaburi, 11120
Tel: 662 982 9023
Fax: 662 574 6386
Distributors
V. dist.1
Europe
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Austria
EBV Elektronik GmbH
Diefenbachgasse 35/6
1150 Wien
Tel: 43 1 8941 7740
Fax: 43 1 8941 775
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Farnell Electronic Services
Akaziengasse 42
1234 Wien
Tel: 43 1 6945 170
Fax: 43 1 6945 10
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SEI/Elbatex GmbH
Eitnergasse 6
1232 Wien
Tel: 43 1 8664 20
Fax: 43 1 8664 2201
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SPOERLE Electronic GmbH
Heiligenstaedter Strasse 52
1190 Wien
Tel: 43 1 3187 2700
Fax: 43 1 3692 273
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Belgium
Farnell Electronic Services
Excelsiorlaan 4A
1930 Zavantem
Tel: 32 2 7253 533
Fax: 32 2 7254 135
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EBV Elektronik
Excelsiorlaan 35
1930 Zaventem
Tel: 32 2 7160 010
Fax: 32 2 7208 152
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SPOERLE Electronic
Keiberg II – Minervastraat 14
1930 Zaventem
Tel: 32 2 725 4660
Fax: 32 2 725 4511
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Czech Republic
SPOERLE Electronic
spol.sr.o.
Scharkovska 24
101 Praha 10
Tel: 42 2 731 354
Fax: 42 2 731 355
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Denmark
EBV Elektronik
Ved Lunden 9
8230 Aabyhoj
Tel: 45 8625 0466
Fax: 45 8625 0466
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AEG Industri A/S
Roskildevej 8–10
2620 Albertslund
Tel: 45 42 648 522
Fax: 45 42 643 311
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Farnell Electronic Services
Smedeholm 13–19
2730 Herlev
Tel: 45 4485 7500
Fax: 45 4485 7530
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SEI/Hatteland A/S
Tindbjergvej 18
8600 Silkeborg
Tel: 45 8683 6211
Fax: 45 8683 6383
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Arrow–EXATEC
Mileparken 20 E
2740 Skovlunde
Tel: 45 4492 7000
Fax: 45 4492 6020
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EBV Elektronik
Gladsaxevej 370
2860 Soborg
Tel: 45 3969 0511
Fax: 45 3969 0504
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Finland
Arrow–Field OY
Nittyläntie 5
00620 Helsinki
Tel: 358 0 777 571
Fax: 358 0 777 3718
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Farnell Electronic Services
Tyopajakatu 5
00580 Helsinki
PL 25
Tel: 358 0 4766 60
Fax: 358 0 4766 6329
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SEI/Hatteland
Malminkaari 230
00700 Helsinki
Tel: 358 0351 61 521
Fax: 358 0351 61 522
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France
Dimacel
63, rue Jean–Jaures
95874 Bezons Cedex
Tel: 33 1 3423 7069
Fax: 33 1 3423 7033
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Arrow
Centreda
Avenue Didier Dorat
31700 Blagnac
Tel: 33 1 6115 7518
Fax: 33 1 6130 0193
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EBV Elektronik
Im Lutelicum
1 Square du Chene Germain
35510 Cesson Sevigne
Tel: 33 99 3843 38
Fax: 33 99 3892 65
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Arrow
Parc d’affaires Hercule
12C, rue des Landelles
35510 Cesson–Sevigne
Tel: 33 1 9941 7044
Fax: 33 1 9950 1128
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EBV Elektronik
16, rue Galilee Cité Descartes
77436 Champs–sur–Marne
Tel: 33 1 6468 8600
Fax: 33 1 6468 2767
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Future Electronics
Parc Technopolis
LP 854 – Les Ulis
3, Courtaboeuf du Canada, Bat.
Theta 2
91974 Courtaboeuf Cedex
Tel: 33 1 6982 1111
Fax: 33 1 6982 1100
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Farnell Electronic Services
ZAC des Maisons Neuves
15, rue de Beledonne
38320 Eybens
BP 133
Tel: 33 1 7624 5261
Fax: 33 1 7662 2804
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Farnell Electronic Services
Espace Technologique
BP 69 Saint Aubin
91192 Gif–Sur–Yvette Cedex
16 ZA de Coutraboeuf
Tel: 33 1 6985 8383
Fax: 33 1 6985 8399
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Arrow
Les jardins d’entreprise–BatB3
213, rue de Gerland
69007 Lyon
Tel: 33 1 7872 7942
Fax: 33 1 7872 8024
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SCAIB
8, rue du Repos
69007 Lyon
Tel: 33 1 7273 2127
Fax: 33 1 7869 1080
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SCAIB
Chemin des Clos, ZIRST
38240 Meylan
Tel: 33 1 7690 2260
Fax: 33 1 7641 0954
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SCAIB
3 ter, rue de l’hyppodrome
44300 Nantes
Tel: 33 4037 0036
Fax: 33 4037 0104
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SEI/SCAIB
6 Rue Ambroise Croizat
91127 Palaiseau Cedex
Tel: 33 1 6919 8900
Fax: 33 1 6919 8920
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Arrow Electronique
73/79, Rue des Solets
94663 Rungis Cedex
B.P. Silic 585
Tel: 33 1 4978 4948
Fax: 33 1 4978 0596
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Farnell Electronic Services
59 Route du General de Gaulle
67300 Schiltigheim
Tel: 33 1 8862 9596
Fax: 33 1 6985 8399
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Arrow
Les Delonix
138, chemin du stade
83140 Six–Fours
Tel: 33 1 9434 2323
Fax: 33 1 9474 8659
Addresses
Distributors
V. dist.2
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SCAIB
Rue des Charrons
31702 Toulouse
BP 57
Tel: 33 1 6171 9083
Fax: 33 1 6130 4987
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EBV Elektronik
Parc Club du Moulin á Vent
33, Av. du Docteur Georges
Levy, Bat 55
69693 Venissieux Cedex
Tel: 33 1 7877 6777
Fax: 33 1 7800 8081
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Farnell Electronic Services
Parc Club du Moulin Vent
33, rue du Docteur Gerard
Levy
69693 Venissieux Cedex
Tel: 33 1 7278 1870
Fax: 33 1 7278 1897
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SCAIB
Technoparc
23, allee Lavoisier
59650 Villeneuve d’Ascq
Tel: 33 1 2005 2903
Fax: 33 1 2005 9912
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Arrow
P.A.T de Brabois–Bat B8
18, allee de la foret de la Reine
54600 Villers Les Nancy
Tel: 33 1 8344 1616
Fax: 33 1 8344 3863
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Germany
SPOERLE Electronic GmbH
Kackertstrasse 10
52072 Aachen
Tel: 49 241 8896 90
Fax: 49 241 8116 2
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Farnell Electronic Services
GmbH
Heubergstrasse 43
72631 Aichtal
Tel: 49 7127 508 78
Fax: 49 7127 562 25
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Farnell Electronic Services
GmbH
Maubacher Strasse 30
71522 Backnang
Tel: 49 7191 689 31
Fax: 49 7191 689 31
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Farnell Electronic Services
GmbH
Bantorfer Brink 75
30890 Barsinghausen
Tel: 49 5105 5146 63
Fax: 49 5105 5140 60
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EBV Elektronik GmbH
Behaimstrasse 3
10585 Berlin
Postfach 100208, PLZ 10562
Tel: 49 30 3421 041
Fax: 49 30 3419 003
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Eurodis Enatechnik Electronics
GmbH
Sickingenstrasse 1
10553 Berlin
Tel: 49 30 3441 043
Fax: 49 30 3449 544
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Future Electronics
Luxemburger Strasse 35
11353 Berlin
Tel: 49 30 4690 890
Fax: 49 30 4690 8989
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SPOERLE Electronic GmbH
Rudower Strasse 27–29
12351 Berlin
Tel: 49 30 6060 11
Fax: 49 30 6014 057
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SPOERLE Electronic GmbH
Hoepfigheimer Strasse 5
74321 Bietigheim–Bissingen
Postfach 1727, PLZ 74307
Tel: 49 7142 7003 0
Fax: 49 7142 7003 60
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EBV Elektronik GmbH
In der Meineworth 21
30938 Burgwedel
Postfach 1355, PLZ 30929
Tel: 49 5139 8087 0
Fax: 49 5139 5199
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Eurodis Enatechnik Electronics
GmbH
Rheinstrasse 24
64283 Darmstadt
Tel: 49 6151 1741 0
Fax: 49 6151 1741 11
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Future Electronics Deutschland
GmbH
Hauert 8
44227 Dortmund
Tel: 49 231 9750 480
Fax: 49 231 9750 823
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SPOERLE Electronic GmbH
Hildebrandstrasse 13
44319 Dortmund
Postfach 130362, PLZ 44313
Tel: 49 231 218 010
Fax: 49 231 2180 167
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SPOERLE Electronic GmbH
Headquarter
Max–Planck–Str. 1–3
63303 Dreieich
Postfach 102140, PLZ 63267
Tel: 49 6103 304 0
Fax: 49 6103 304 344
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Eurodis Enatechnik Electronics
GmbH
St. Petersburger Str. 15
01309 Dresden
Tel: 49 351 3361 304
Fax: 49 351 3361 306
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EBV Elektronik GmbH
Burgstrasse 81–83
65817 Eppstein
Tel: 49 6198 5920 50
Fax: 49 6198 5920 70
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Farnell Electronic Services
GmbH
Fr.–Engels–Strasse 54/94
99086 Erfurt
Tel: 49 361 211 3580
Fax: 49 361 211 3580
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Future Electronics Deutschland
GmbH
Wilhelm–Wolff–Str.6
99099 Erfurt
Tel: 49 361 4208 70
Fax: 49 361 4208 760
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Farnell Electronic Services
GmbH
Am Geissberg 8
71292 Friolzheim
Tel: 49 7044 440 49
Fax: 49 7044 441 48
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Farnell Electronic Services
GmbH
Kurze Strasse 1
74376 Gemmrigheim
Tel: 49 7143 9439 0
Fax: 49 7143 9439 0
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DLC 3
Rodeweg 18
37081 Goettingen
Postfach 3352, PLZ 37023
Tel: 49 551 904 0
Fax: 49 551 904 46748
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Farnell Electronic Services
GmbH
Feithstrasse 41
58095 Hagen
Tel: 49 2331 5899 40
Fax: 49 2331 5899 40
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SPOERLE Electronic GmbH
Schnackenburger Allee 149
22525 Hamburg
Postfach 540824, PLZ 22508
Tel: 49 40 853 134 0
Fax: 49 40 8531 3490
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Eurodis Enatechnik Electronics
GmbH
Rendsburger Str. 24
30659 Hannover
Tel: 49 511 6159 70
Fax: 49 511 6159 798
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Future Electronics Deutschland
GmbH
Black & Decker–Strasse 17B
65510 Idstein
Tel: 49 6126 5402 0
Fax: 49 6126 5162 9
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EBV Elektronik GmbH
Matthias–Claudius–Strasse 2A
41564 Kaarst
Tel: 49 2131 9677 0
Fax: 49 2131 9677 30
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EBV Elektronik GmbH
Headquarter
Ammerthalstr. 28
85551 Kirchheim–Heimstetten
Tel: 49 89 9911 40
Fax: 49 89 9911 4422
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Eurodis Enatechnik Electronics
GmbH
Henschelring 5
85551 Kirchheim/Muenchen
Tel: 49 89 9049 820
Fax: 49 89 9049 8240
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Eurodis Enatechnik Electronics
GmbH
Max–Stromeyerstrasse 1
78467 Konstanz
Tel: 49 7531 6104 8
Fax: 49 7531 6726 0
Distributors
V. dist.3
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Future Electronics Deutschland
GmbH
Johannes–Daur–Strasse 1
70825 Korntal–Muenchingen
Tel: 49 711 8308 30
Fax: 49 711 8308 383
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Farnell Electronic Services
GmbH
Platanenstrasse 33
86899 Landsberg
Tel: 49 8191 229 45
Fax: 49 8191 229 45
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Future Electronics
Buschkamp 84
30853 Langenhagen
Tel: 49 511 7256 20
Fax: 49 511 7256 262
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EBV Elektronik GmbH
Boeblinger Strasse 13
71229 Leonberg
Tel: 49 7152 300 90
Fax: 49 7152 7595 8
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Farnell Electronic Services
GmbH
Othlinghauser Strasse 29A
58509 Luedenscheid
Tel: 49 2351 6340 34
Fax: 49 2351 6340 34
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SPOERLE Electronic GmbH
Hauptstrasse 103
04416 Markkleeberg
Tel: 49 341 3562 20
Fax: 49 341 35622 66
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Farnell Electronic Services
GmbH
Stiftstrasse 14
32427 Minden
Tel: 49 571 8401 12
Fax: 49 571 8401 12
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Farnell Electronic Services
GmbH
Elektronik Vertrieb Headquar-
ter
Bahnhofstrasse 44
71693 Moeglingen
Tel: 49 7141 487 0
Fax: 49 7141 487 210
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Eurodis Enatechnik Electronics
GmbH
Hellersberger Strasse 14
41469 Neuss
Tel: 49 2131 918 890
Fax: 49 2131 918 930
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Eurodis Enatechnik Electronics
GmbH
Lina–Ammon–Strasse 22
90471 Nuernberg
Tel: 49 911 8603 0
Fax: 49 911 8603 230
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SPOERLE Electronic GmbH
Rathsbergstrasse 17
90411 Nuernberg
Tel: 49 911 5215 60
Fax: 49 911 5215 635
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Farnell Electronic Services
GmbH
Am Saalbach 5
76661 Philipsburg
Tel: 49 7256 7878
Fax: 49 7256 7878
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SPOERLE Electronic GmbH
Wernher–von–Braun–Strasse 9
85640 Putzbrunn
Tel: 49 89 4561 80
Fax: 49 89 4561 8399
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Eurodis Enatechnik Electronics
GmbH Headquarter
Pascalkehre 1
25443 Quickborn
Tel: 49 4106 701 0
Fax: 49 4106 701 268
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Future Electronics Deutschland
GmbH
Max–Weber–Strasse 3
25451 Quickborn
Tel: 49 4106 7102 1
Fax: 49 4106 7522 6
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EPSa GmbH
Werk Saalfeld
Remschützer Strasse 1
07318 Saalfeld
Tel: 49 3671 448 150
Fax: 49 3671 448 161
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Farnell Electronic Services
GmbH
Kirchroettenbach 47
91220 Schnaittach
Tel: 49 9126 39 94
Fax: 49 9126 39 95
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Farnell Electronic Services
GmbH
Roemerstrasse 116
59379 Selm
Tel: 49 2592 9812 13
Fax: 49 2592 9812 13
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Eurodis Enatechnik Electronics
GmbH
Dreifelder Str. 36
70599 Stuttgart
Postfach 720150, PLZ 70577
Tel: 49 711 458 960
Fax: 49 711 458 96 66
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SPOERLE Electronic GmbH
Am Gansacker 10
79224 Umkirch
Postfach 1143, PLZ 79220
Tel: 49 7665 9855 0
Fax: 49 7665 9855 98
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Future Electronics Deutschland
GmbH
Headquarter–D
Muenchner Strasse 18
85774 Unterfoehring
Tel: 49 89 9572 70
Fax: 49 89 9572 7205
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Farnell Electronic Services
GmbH
Saphirweg 14
71665 Vaihingen
Tel: 49 7042 920 17
Fax: 49 7042 920 17
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Farnell Electronic Services
GmbH
Finkenweg 7
38159 Vechelde
Tel: 49 5302 840 112
Fax: 49 5302 840 112
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Farnell Electronic Services
GmbH
Hansjakobweg 7
75045 Walzbachtal
Tel: 49 7203 5278
Fax: 49 7203 5278
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Greece
P. Caritato & Associates S.A.
31 Ilia Iliou
Athens 11743
Tel: 30 1 9020 115
Fax: 30 1 9017 024
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EBV Elektronik
1, Anaxagora Str.
17778 Tavros
Tel: 30 1 3414 300
Fax: 30 1 3414 304
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Hungary
SPOERLE Elektronik
Vaci ut 45
1134 Budapest
Tel: 36 1 270 1333
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Italy
Farnell Electronic Services
Viale Milanofiori, E/5
20094 Assago (Milano)
Tel: 39 2 8247 01
Fax: 39 2 8242 631
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Sonelco S.P.A.
Via Monfalcone 15
20092 Cinisello Balsamo (MI)
Tel: 39 2 6602 61
Fax: 39 2 6601 1295
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EBV Elektronik S.R.L.
Via C. Frova 34
20092 Cinisello Balsamo (Mil)
Tel: 39 2 6609 61
Fax: 39 2 6601 7020
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Avnet EMG S.R.L.
Centro Direzionale–Via Nova-
ra 570
20153 Milano
Tel: 39 2 38103 100
Fax: 39 2 38002 988
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Lasi Elettronica S.P.A.
Div.Della Silverstar Ltd.
Viale Fulvio Testi 280
20126 Milano
Tel: 39 2 6614 31
Fax: 39 2 6610 1385
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Vector Electronic S.R.L.
Via Cialdini 37
20161 Milano
Tel: 39 2 6624 011
Fax: 39 2 6620 2851
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CO. V. EL S.R.L
(TFK only)
Via Vittorio Veneto 82
35013 Tombolo (PD)
Tel: 39 49 9470 970
Fax: 39 49 9471 018
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Cecchi Gianni
Via F.LLI.Carli 32
50060 Molino Del Piano (FI)
Firenze
Tel: 39 55 8364 059
Fax: 39 55 8364 061
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Netherlands
EBV Elektronik
Planetenbaan 2
3606 AK Maarssenbroek
Tel: 31 3465 623 53
Fax: 31 3465 642 77
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SPOERLE Electronic
Coltbaan 17
3439 NG Nieuwegein
Tel: 31 3402 912 34
Fax: 31 3402 359 24
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Farnell
Chroomstraat 28
2718 RH Zoetermeer
PB 345
Tel: 31 7961 3161
Fax: 31 7961 3169
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SPOERLE Electronic
Eindhoven
De Run 1120
5503 LA Veldhoven
Tel: 31 402 545 430
Fax: 31 402 535 540
Distributors
V. dist.4
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Norway
Jakob Hatteland Electronic AS
SEI
5578 Nedre Vats
Tel: 47 5376 3000
Fax: 47 5376 5339
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Arrow–Tahonic AS
Sagveien 17
0404 Oslo
4554 Torshov
Tel: 47 22 3784 40
Fax: 47 22 3707 20
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Farnell Electronic Services
Karihaugen 89
1001 Oslo
120 Foroset
Tel: 47 22 3212 70
Fax: 47 22 3251 20
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Poland
Semicond S.C.
ul. Nateczowska 35
02–922 Warszawa
Tel: 48 22 651 9828
Fax: 48 22 651 9827
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SPOERLE Elektroni
Polska Sp.z.o.o.
ul. Domaniewska 41
02–672 Warszawa
Tel: 48 22 6400 447
Fax: 48 22 6400 348
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Portugal
ADM Electronica s/a
Sonepar Branch Office
En 107,No.743,Arde-
gaes,Aguas Santas
4445 Ermesinde
Tel: 351 2 9736 957
Fax: 351 2 9736 958
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Slovenia
EBV Elektronik
Dunajska 22/9
1511 Ljubljana
Tel: 386 61 1330 216
Fax: 386 61 1330 457
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Spain
EBV Elektronik
Calle Paris, 71
08029 Barcelona
Tel: 34 93 4108 533
Fax: 34 93 4190 825
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EBV Elektronik
Calle Maria Tubau 6
28049 Madrid
Tel: 34 1 3588 608
Fax: 34 1 3589 430
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SEI/ADM electronica s/a
Head Office
Tomas Breton, 50 30 2
28045 Madrid
Tel: 34 1 5304 121
Fax: 34 1 5300 164
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EBV Elektronik
Centro Empresarial Euronova
Ronda de Poniente 4
28760 Tres Cantos Madrid
Tel: 34 1 8043 256
Fax: 34 1 8044 103
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Sweden
Farnell Electronic Services
Ankdammsgatan 32
17126 Solna
Box 1330
Tel: 46 8 8300 20
Fax: 46 8 2713 03
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Arrow – TH’s AB
Arrendevagen 36
16303 Spanga
Box 3027
Tel: 46 8 3629 70
Fax: 46 8 7613 065
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SEI/Hatteland
Gunnebogatan 30
16303 Spanga
Box 3009
Tel: 46 8 7600 140
Fax: 46 8 3646 86
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Switzerland
EBV Elektronik
Vorstadtstrasse 37
8953 Dietikon
Tel: 41 1 745 6161
Fax: 41 1 741 5110
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EBV Elektronik
10 Passage St. Francois
1003 Lausanne
Tel: 41 21 3112 804
Fax: 41 21 3112 807
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SPOERLE Electronic
En Chamard
1442 Montagny p/–Yverdon
Tel: 41 24 270 100
Fax: 41 24 245 245
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Fabrimex Spoerle
Cherstrasse 4
8152 Opfikon–Glattbrugg
Tel: 41 1 8746 262
Fax: 41 1 8746 200
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Farnell Electronic Services
Brandschenkestrasse 178
8027 Zuerich
Tel: 41 1 2046 111
Fax: 41 1 2046 311
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United Kingdom
Micromark Electronics Ltd.
Maidenhead
159 Boyn Valley Road
Berkshire SL6 4EG
Tel: 44 1628 7617 6
Fax: 44 1628 7837 99
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Eltek Semiconductors
Nelson Road Industrial Estate
Dartmouth, Devon TQ6 9LA
Tel: 44 803 834 455
Fax: 44 803 833 011
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Farnell Electronic Services
Edinburgh Way
Harlow, Essex, CM20 2DF
Tel: 44 1279 626 777
Fax: 44 1279 441 687
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Farnell Electronic Components
Armley Road
Leeds, West Yorkshire,LS12
2QQ
Tel: 44 0113 2790 101
Fax: 44 0113 2633 404
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Abacus Polar
Cherrycourt Way
Leighton Buzzard
Bedfordshire LU7 8YY
Tel: 44 1525 5850 00
Fax: 44 1525 8580 01
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Future Electronics Ltd.
Headquarter–UK
Future House, Poyle Road
Colnbrook
Berkshire SL3 OEZ
Tel: 44 1753 6870 0
Fax: 44 1753 6891 00
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Macro Group
Burnham Lane
Slough
Berkshire SL1 6LN
Tel: 44 1628 6043 83
Fax: 44 1628 6668 73
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Eurodis HB Electronics
Lever Street
Bolton
BL3 6BJ
Tel: 44 1204 555 000
Fax: 44 1204 384 911
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EBV Electronics
4/5 Market Square
Marlow
Buckinghamshire
Tel: 44 1438 4887 11
Fax: 44 1438 4887 22
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2001
Stevenage Business Park, Pin
Green
Stevenage
Hertfordshire SG1 4SU
Tel: 44 1438 7420 01
Fax: 44 1438 7420 02
Distributors
V. dist.5
Africa / Middle East
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Rep. of South Africa
Electrolink (PTY) Ltd.
Fleetway House
Martin Hammerschlag Way
Cape Town 8000
P.O. Box 1020
Tel: 27 21 2153 50
Fax: 27 21 4196 256
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Israel
Tritech Ltd.
Ind. Zone
4, Hayetzira Street
P.O. Box 2436
Tel: 972 9 917 277
Fax: 972 9 982 616
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Turkey
EBV Elektronik
Perdemsac Plaza
Bayar Cad.Gulbahar Sok.No
17
K:13, D:131–132 Kozyatagi
Istanbul
Tel: 90 216 463 1352
Fax: 90 216 463 1355
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EMPA
Besyol Lowdra Asfalti
Florya Is Merkezi No.5,Kat:3
34630 Sefaköy–Istanbul
Tel: 90 212 599 3050
Fax: 90 212 599 3059
North America / Canada
USA
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Alabama
All American
4950 Corporate Dr., Ste.115D
Huntsville
Alabama 35816
Tel: 1 205 837 1555
Fax: 1 205 837 7733
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Anthem Electronics
4920–H Corporate Drive
Huntsville
Alabama 35805
Tel: 1 205 890 0302
Fax: 1 205 890 0130
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Future Electronics Corp.
1825 University Square, Ste.12
Huntsville
Alabama 35816
Tel: 1 205 830 2322
Fax: 1 205 830 6664
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Hamilton/Hallmark–#23
4890 University Square, Ste.1
Huntsville
Alabama 35816
Tel: 1 205 837 8700
Fax: 1 205 830 8404
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Marshall Industries
3313 Memorial Pkwy. South,
Ste.150
Huntsville
Alabama 35801
Tel: 1 205 881 9235
Fax: 1 205 881 1490
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Pioneer Tech.
4835 University Square, Ste.5
Huntsville
Alabama 35816
Tel: 1 205 837 9300
Fax: 1 205 837 9358
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Arizona
Future Electronics Corp.
4636 East University Drive,
Ste.245
Phoenix
Arizona 85034
Tel: 1 602 968 7140
Fax: 1 602 968 0334
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Marshall Industries
9831 South 51st Street,
Ste.C108
Phoenix
Arizona 85044
Tel: 1 602 496 0290
Fax: 1 602 893 9029
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Pioneer–Standard Electronics
4908 E. McDowell Rd.,Ste.103
Phoenix
Arizona 85008
Tel: 1 602 231 6400
Fax: 1 602 231 8877
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Bell Industries
10611 N. Hayden Rd.
Scottsdale
Arizona 85260
Tel: 1 602 905 2355
Fax: 1 602 905 2356
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Anthem Electronics
1555 West 10th Place, Ste.101
Tempe
Arizona 85281
Tel: 1 602 966 6600
Fax: 1 602 966 4826
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Hamilton/Hallmark
1626 South Edward Drive
Tempe
Arizona 85281
Tel: 1 800 332 8638
Fax: 1 800 257 0568
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California
Future Electronics Corp.
27489 West Agoura Road,
Ste.300
Agoura Hills
California 91301
Tel: 1 818 865 0040
Fax: 1 818 865 1340
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Pioneer Std.
5126 Clareton Drive, Ste.160
Agoura Hills
California 91301
Tel: 1 818 865 580
Fax: 1 818 865 5814
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All American
26010 Mureau Rd., Ste.120
Calabasas
California 91302
Tel: 1 818 878 0555
Fax: 1 818 878 1603
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Marshall Industries
26637 Agoura Road
Calabasas
California 91302–1959
Tel: 1 818 878 7000
Fax: 1 818 880 6846
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Anthem Electronics
9131 Oakdale Avenue
Chatsworth
California 91311
Tel: 1 818 775 1333
Fax: 1 818 775 1302
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Hamilton Corporate
10950 West Washington Blvd.
Culver City
California 90230
Tel: 1 310 558 2000
Fax: 1 310 558 2076
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All American
10805 Holder Str., Ste.100
Cypress
California 90630
Tel: 1 714 229 8600
Fax: 1 714 229 8300
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Marshall Corporate
9320 Telstar Avenue
El Monte
California 91731
Tel: 1 818 307 6000
Fax: 1 818 307 6297
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Anthem Electronics
1 Oldfield Drive
Irvine
California 92718–2809
Tel: 1 714 768 4444
Fax: 1 714 768 6456
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Bell Industries
220 Technology Drive, Ste.100
Irvine
California 92718
Tel: 1 714 727 4500
Fax: 1 714 453 4610
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Future Electronics Corp.
25B Technology Drive, Ste.200
Irvine
California 92718
Tel: 1 714 453 1515
Fax: 1 714 453 1226
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Hamilton/Hallmark
140 Technology DR #400
Irvine
California 92718–2401
Tel: 1 714 789 4102
Fax: 1 714 789 4122
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Marshall Industries
1 Morgan
Irvine
California 92718
Tel: 1 714 859 5050
Fax: 1 714 581 5255
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Pioneer Std.
217 Technology Drive, Ste.110
Irvine
California 92718
Tel: 1 714 753 5090
Fax: 1 714 753 5589
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Zeus Electronics
6 Cromwell, Ste.100
Irvine
California 92718
Tel: 1 714 581 4622
Fax: 1 714 454 4355
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Bell Industries Corporate
11812 San Vincente
Blvd.,Ste.300
Los Angeles
California 90049
Tel: 1 310 826 2355
Fax: 1 310 826 1534
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Marshall Industries
336 Los Coches Street
Milpitas
California 95035
Tel: 1 408 942 4600
Fax: 1 408 262 1224
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Marshall Industries
3039 Kilgore Avenue, Ste.140
Rancho Cordova
California 95670
Tel: 1 916 635 9700
Fax: 1 916 635 6044
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JAN Devices
6925 Canby, Bldg. 109
Reseda
California 91335
Tel: 1 818 757 2000
Fax: 1 818 708 743
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Anthem Electronics
580 Menlo Drive, Ste.8
Rocklin
California 95765
Tel: 1 916 624 9744
Fax: 1 916 624 9750
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Hamilton/Hallmark–#35
580 Menlo Drive, Ste.2
Rocklin
California 95765
Tel: 1 916 624 9781
Fax: 1 916 961 0922
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Bell Industries
3001 Douglas Boulevard,
Suite#205
Roseville
California 95661
Tel: 1 916 781 8070
Fax: 1 916 781 2954
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Future Electronics Corp.
755 Sunrise Avenue, Ste.150
Roseville
California 95661
Tel: 1 916 783 7877
Fax: 1 916 783 7988
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All American
6390 Greenwich Dr., Ste.170
San Diego
California 92122
Tel: 1 619 658 0200
Fax: 1 619 658 0201
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All American Semiconductor
5625 Ruffin Road, Ste.200
San Diego
California 92123
Tel: 1 619 268 1505
Fax: 1 619 268 3836
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Anthem Electronics
9369 Carroll Park Drive
San Diego
California 92121
Tel: 1 619 453 9005
Fax: 1 619 546 7893
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Bell Industries
5520 Ruffin Road, Ste.209
San Diego
California 92123
Tel: 1 619 576 3924
Fax: 1 619 492 9826
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Future Electronics Corp.
5151 Shoreham Place, Ste.220
San Diego
California 92122
Tel: 1 619 625 2800
Fax: 1 619 625 2810
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Hamilton/Hallmark–#02
4545 Viewridge Avenue
San Diego
California 92123
Tel: 1 619 571 7540
Fax: 1 619 277 6136
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Marshall Industries
5961 Kearny Villa Road
San Diego
California 92123
Tel: 1 619 627 4140
Fax: 1 619 627 4163
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Pioneer
9449 Balboa Ave., Ste.114
San Diego
California 92123
Tel: 1 619 514 7700
Fax: 1 619 514 7799
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All American
230 Devcon Drive
San Jose
California 95112
Tel: 1 408 441 1300
Fax: 1 408 437 8984
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All American Semiconductor
230 Devcon Dr.
San Jose
California 95112
Tel: 1 408 437 4624
Fax: 1 408 943 1393
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Anthem Electronics
1160 Ridder Park Drive
San Jose
California 95131
Tel: 1 408 453 1200
Fax: 1 408 441 4504
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Future Electronics Corp.
2220 O’Toole Avenue
San Jose
California 95131–1326
Tel: 1 408 434 1122
Fax: 1 408 433 0822
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Hamilton/Hallmark–#03
2105 Lundy Avenue
San Jose
California 95131
Tel: 1 408 435 3500
Fax: 1 408 435 3720
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Pioneer Tech.
333 River Oaks Parkway
San Jose
California 95134
Tel: 1 408 954 9100
Fax: 1 408 954 9113
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Zeus Electronics
6276 San Ignacio Avenue,
Ste.E
San Jose
California 95119
Tel: 1 408 629 4789
Fax: 1 408 629 4792
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Taitron
25202 Anza Drive
Santa Clarita
California 91355–3496
Tel: 1 805 257 6060
Fax: 1 805 257 6415
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Bell Industries
1161 North Fairoaks Avenue
Sunnyvale
California 94089
Tel: 1 408 734 8570
Fax: 1 408 734 8875
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All American Semiconductor
369 Van Ness Way, Ste.701
Torrance
California 90501
Tel: 1 310 320 0240
Fax: 1 310 320 2707
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Bell Industries
125 Auburn Court
Westlake Village
California 91362
Tel: 1 805 373 5600
Fax: 1 805 496 7340
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Hamilton/Avnet–#48/01
21150 Califa Street
Woodland Hills
California 91367
Tel: 1 818 594 0404
Fax: 1 818 594 8234
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Colorado
Marshall Industries
4680 Edison, Ste.D
Colorado Springs
Colorado 80915
Tel: 1 719 573 0904
Fax: 1 719 573 0103
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Pioneer
5600 Green Wood Plaza Blvd.,
Ste.201
Denver
Colorado
Tel: 1 303 773 8090
Fax: 1 303 773 8194
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Anthem Electronics
373 Inverness Drive South
Englewood
Colorado 80112
Tel: 1 303 790 4500
Fax: 1 303 790 4532
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Hamilton/Hallmark–#06
12503 East Euclid Drive,
Ste.20
Englewood
Colorado 80111
Tel: 1 303 799 7800
Fax: 1 303 790 4991
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Future Electronics Corp.
12600 West Colfax Avenue,
Ste.B110
Lakewood
Colorado 80215
Tel: 1 303 232 2008
Fax: 1 303 232 2009
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Bell Industries
9351 Grant Street, Ste.460
Thornton
Colorado 80229
Tel: 1 303 691 9270
Fax: 1 303 691 9036
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Marshall Industries
12351 North Grant Street,
Ste.A
Thornton
Colorado 80241
Tel: 1 303 451 8444
Fax: 1 303 457 2899
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Added Value/All American
4090 Youngfield Street
Wheat Ridge
Colorado 80033
Tel: 1 303 422 1701
Fax: 1 303 422 2529
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Connecticut
Future Electronics Corp.
Westgate Office Center
700 West Johnson Avenue
Cheshire
Connecticut 06410
Tel: 1 203 250 0083
Fax: 1 203 250 0081
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Hamilton/Hallmark–#21
125 Commerce Court, Unit 6
Chesire
Connecticut 06410
Tel: 1 203 271 2844
Fax: 1 203 272 1704
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All American
100 Mill Plain Road, Ste.360
Danbury
Connecticut 06811
Tel: 1 203 791 3818
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Bell Industries
1064 East Main Street
Meriden
Connecticut 06413
Tel: 1 203 639 6000
Fax: 1 203 639 6005
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Pioneer Std.
2 Trap Falls Road
Shelton
Connecticut 06484
Tel: 1 203 929 5600
Fax: 1 203 929 9791
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Marshall Industries
Barnes Industrial Park
20 Sterling Drive
Wallingford
Connecticut 06492
Tel: 1 203 265 3822
Fax: 1 203 284 9285
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Anthem Electronics
61 Mattatuck Heights Road
Waterbury, CT 06705
Connecticut 06705
Tel: 1 203 575 1575
Fax: 1 203 575 3232
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Florida
Future Electronics Corp.
237 S. Westmonte Dr., Ste.307
Altamonte Spring
Florida 32714
Tel: 1 407 865 7900
Fax: 1 407 865 7660
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Anthem Electronics
598 South Northlake
Blvd.#1024
Altamonte Springs
Florida 32701
Tel: 1 407 831 0007
Fax: 1 407 831 6990
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Bell Industries
650 South Northlake Blvd.,
Ste.400
Altamonte Springs
Florida 32701
Tel: 1 407 339 0078
Fax: 1 407 339 0139
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Marshall Industries
650 South Northlake Blvd.,
Ste.1024
Altamonte Springs
Florida 32701
Tel: 1 407 767 8585
Fax: 1 407 767 8676
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All American
14450 46th St., No. Ste.116
Clearwater
Florida 34622
Tel: 1 813 532 9800
Fax: 1 813 538 5567
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Anthem Electronics
13575 58th St.N.Ste.122
Clearwater
Florida 34620
Tel: 1 813 538 4157
Fax: 1 813 538 4158
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All American Semiconductor
1400 East Newport Center
Dr.Ste.205
Deerfield Beach
Florida 33442
Fax: 1 954 429 0391
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Future Electronics Corp.
1400 E. Newport Center
Dr.,Ste.200
Deerfield Beach
Florida 33442
Tel: 1 305 426 4043
Fax: 1 305 426 3939
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Pioneer Tech.
674 South Military Trail
Deerfield Beach
Florida 33442
Tel: 1 305 428 8877
Fax: 1 305 481 2950
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Anthem Electronics
5450 N.W. 33Rd Ave,Ste.101
Fort Lauderdale
Florida 33309
Tel: 1 305 484 0990
Fax: 1 305 484 0951
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Hamilton/Hallmark–#17
3350 North West 53rd Avenue,
Ste.105
Fort Lauderdale
Florida 33309
Tel: 1 305 484 5482
Fax: 1 305 484 4740
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Marshall Industries
2700 West Cypress Creek
Road, Ste.D114
Fort Lauderdale
Florida 33309
Tel: 1 305 977 4880
Fax: 1 305 977 4887
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Zeus Components
37 Skyline Drive, Bldg. D,
Ste.3101
Lake Mary
Florida 32746
Tel: 1 407 333 3055
Fax: 1 407 333 9681
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Future Electronics Corp.
2200 Tall Pines Drive, Ste.108
Largo
Florida 34641
Tel: 1 813 530 1222
Fax: 1 813 538 9598
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Hamilton/Hallmark–#25
10491 77th Street North
Largo
Florida 34647
Tel: 1 813 541 7440
Fax: 1 813 544 4394
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All American Semiconductor
16085 N.W. 52nd Avenue
Miami
Florida 33014
Tel: 1 305 621 8282
Fax: 1 305 620 7831
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Marshall Industries
2840 Scherer Drive, Ste.410
St. Petersburg
Florida 33716
Tel: 1 813 573 1399
Fax: 1 813 573 0069
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Future Electronics Corp.
1435 Market Street
Tallahassee
Florida 32312
Tel: 1 904 668 7772
Fax: 1 904 668 0856
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Reptron
(TFK only)
14401 McCormick Drive
Tampa
Florida
Tel: 1 813 854 2351
Fax: 1 813 854 1324
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Georgia
Anthem Electronics
3305 Breckinridge, Ste.108
Duluth
Georgia 30136
Tel: 1 770 931 3900
Fax: 1 770 931 3902
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Hamilton/Hallmark–#76
3425 Corporate Way, Ste.A
Duluth
Georgia 30136
Tel: 1 404 623 4400
Fax: 1 404 476 3043
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Pioneer Std.
4250C Rivergreen Pkwy.
Duluth
Georgia 30136
Tel: 1 770 623 1003
Fax: 1 770 623 0665
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All American
6875 Jimmy Carter
Blvd.,Ste.3100
Norcross
Georgia 30071
Tel: 1 770 441 7500
Fax: 1 770 441 3660
Distributors
V. dist.8
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Bell Industries
3020 Business Park Drive,
Ste.D
Norcross
Georgia 30071
Tel: 1 404 446 7167
Fax: 1 404 446 7264
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Future Electronics Corp.
3150 Holcomb Bridge Road,
Ste.130
Norcross
Georgia 30071
Tel: 1 404 441 7676
Fax: 1 404 441 7580
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Marshall Industries
5300 Oakbrook Pkwy., Ste.140
Norcross
Georgia 30093
Tel: 1 404 923 5750
Fax: 1 404 923 2743
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Future Electronics Corp.
12438 W. Bridgen Street
Boise
Idaho 83713
Tel: 1 208 376 8080
Fax: 1 208 376 6168
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Idaho
QuadRep Crown, Inc. #010
10451 W. Garverdale, Ste.209
Boise
Idaho 83704
Tel: 1 208 375 9868
Fax: 1 208 323 9386
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Illinois
Pioneer Std.
2171 Executive Drive, Ste.200
Addison
Illinois 60101
Tel: 1 708 495 9680
Fax: 1 708 495 9831
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Hamilton/Hallmark–#10
3030 Salt Creek Lane, Ste.300
Arlington Heights
Illinois 60005
Tel: 1 708 797 7361
Fax: 1 708 797 7724
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Bell Industries
870 Cambridge Drive
Elk Grove Village, IL 60007
Illinois 60007
Tel: 1 708 640 1910
Fax: 1 708 640 1928
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Future Electronics Corp.
3150 West Higgins Road,
Ste.160
Hoffman Estates
Illinois 60195
Tel: 1 708 882 1255
Fax: 1 708 490 9290
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Victory Sales #067
405 N. Calhoun Road, Ste.208
Hoffman Estates
Illinios 60195
Tel: 1 708 490 0300
Fax: 1 708 490 1499
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All American
1989 University Lane
Lisle
Illinois 60532
Tel: 1 708 852 7708
Fax: 1 708 852 7791
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Zeus Electronics
1140 West Thorndale Avenue
Itasca
Illinois 60143
Tel: 1 708 595 9730
Fax: 1 708 595 9896
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All American
1930 N. Thoreau Dr., Ste.200
Schaumburg
Illinois 60173
Tel: 1 708 303 1995
Fax: 1 708 303 1996
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Anthem Electronics
1300 Remington Road,Ste.A
Schaumburg
Illinois 60173
Tel: 1 708 884 0200
Fax: 1 708 884 0480
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Marshall Industries
50 East Commerce Drive, Unit
I
Schaumburg
Illinois 60173
Tel: 1 708 490 0155
Fax: 1 708 490 0569
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Indiana
Hamilton Hallmark–#28
655 W. Carmel Drive, Ste.160
Carmel
Indiana 46032–2500
Tel: 1 317 872 8875
Fax: 1 317 876 7165
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Bell Industries
525 Airport North Office Park
Fort Wayne
Indiana 46803
Tel: 1 219 422 4300
Fax: 1 219 423 3420
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Bell Industries
5230 West 79th Street
Indianapolis
P.O. Box 6885
Indiana 46268
Tel: 1 317 875 8200
Fax: 1 317 875 8219
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Future Electronics Corp.
8425 Woodfield Crossing
Indianapolis
Indiana 46240
Tel: 1 317 469 0447
Fax: 1 317 469 0448
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Marshall Industries
6990 Corporate Drive
Indianapolis
Indiana 46278
Tel: 1 317 388 9069
Fax: 1 317 297 2787
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Pioneer Std.
9350 North Priority Way West
Drive
Indianapolis
Indiana 46240
Tel: 1 317 573 0880
Fax: 1 317 573 0979
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Iowa
Hamilton/Hallmark–#44
2335–A Blairsferry North East
Cedar Rapids
Iowa 52402
Tel: 1 319 393 0033
Fax: 1 319 393 7050
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Kansas
Anthem Electronics
13820 Santa Fee Trail
Drive,Ste.109
Lenexa
Kansas 66215
Tel: 1 913 599 1528
Fax: 1 913 599 1325
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Marshall Industries
10413 West 84th Terrace
Lenexa
Kansas 66214
Tel: 1 913 492 3121
Fax: 1 913 492 6205
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Future Electronics Corp.
8826 Santa Fee Drive, Ste.150
Overland Park
Kansas 66212
Tel: 1 913 649 1531
Fax: 1 913 649 1786
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Hamilton/Hallmark–#58
9200 Indian Greek
Pkwy.Ste.200
Overland Park
Kansas 66210
Tel: 1 913 663 7900
Fax: 1 913 663 7979
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Kentucky
Hamilton/Hallmark
1847 Mercer Road, Ste.G
Lexington
Kentucky 40511–1001
Tel: 1 606 259 1475
Fax: 1 606 288 4936
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Maryland
All American
14636 Rothgeb Drive
Rockville
Maryland 20850
Tel: 1 301 251 1205
Fax: 1 301 251 8574
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Anthem Electronics
7168A Columbia Gateway
Drive
Columbia
Maryland 21046
Tel: 1 410 995 6640
Fax: 1 410 290 9862
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Bell Industries
8945 Guilford Road, Ste.130
Columbia
Maryland 21046
Tel: 1 410 290 5100
Fax: 1 410 290 8006
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Future Electronics Corp.
6716 Alexander Bell Drive,
Ste.101
Columbia
Maryland 21046
Tel: 1 410 290 0600
Fax: 1 410 290 0328
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Hamilton/Hallmark–#12
71347 Gateway Drive, Ste.100
Columbia
Maryland 21045
Tel: 1 410 720 3400
Fax: 1 410 720 3434
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Marshall Industries
9130B Guilford Road
Columbia
Maryland 21046
Tel: 1 410 880 3030
Fax: 1 410 880 3232
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Pioneer Tech.
15810 Gaither Drive
Gaithersburg
Maryland 20877
Tel: 1 301 921 3826
Fax: 1 301 921 3858
Distributors
V. dist.9
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Pioneer Tech.
9100 Gaither Road
Gaithersburg
Maryland 20877
Tel: 1 301 921 0660
Fax: 1 301 921 4255
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All American Semiconductor
14636 Rothgeb Drive
Rockville
Maryland 20850
Tel: 1 301 251 1205
Fax: 1 301 251 8754
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Massachusetts
Bell Industries
100 Burtt Road, Ste.106
Andover
Massachusetts 01810
Tel: 1 508 474 8880
Fax: 1 508 474 8902
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All American
19A Crosby Drive
Bedford
Massachussets 01730
Tel: 1 617 275 8888
Fax: 1 617 275 1982
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Future Electronics Corp.
41 Main Street
Bolton
Massachusetts 01740
Tel: 1 508 779 3000
Fax: 1 508 779 5143
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Pioneer Std.
44 Hartwell Avenue
Lexington
Massachusetts 02173
Tel: 1 617 861 9200
Fax: 1 617 863 1547
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Hamilton/Hallmark–#18
10D Centennial Drive
Peabody
Massachusetts 01960
Tel: 1 508 532 3701
Fax: 1 508 532 9802
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Anthem Electronics
200 Research Drive
Wilmington
Massachusetts 01887
Tel: 1 508 657 5170
Fax: 1 508 657 6008
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Marshall Industries
33 Upton Drive
Wilmington
Massachusetts 01887
Tel: 1 508 658 0810
Fax: 1 508 657 5931
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Zeus Electronics
25 Upton Drive
Wilmington
Massachusetts 01877
Tel: 1 508 658 4776
Fax: 1 508 694 2199
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Michigan
Future Electronics Corp.
4505 Broadmoor South East
Grand Rapids
Michigan 49512
Tel: 1 616 698 6800
Fax: 1 616 698 6821
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Anthem Electronics
39111 W.Six Mile Road,
Ste.160
Livonia
Michigan 48152
Tel: 1 313 591 3218
Fax: 1 313 591 6381
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ÁÁÁÁÁÁÁÁ
Future Electronics Corp.
Celeste Doerwald
35200 Schoolcraft Road,
Ste.106
Livonia
Michigan 48150
Tel: 1 313 261 5270
Fax: 1 313 261 8175
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ÁÁÁÁÁÁÁÁ
Marshall Industries
31067 Schoolcraft Road
Livonia
Michigan 48150
Tel: 1 313 525 5850
Fax: 1 313 525 5855
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Hamilton Hallmark–#67
44191 Plymouth Oaks
Blvd.,Ste.1300
Plymouth
Michigan 48170–2585
Tel: 1 313 416 5800
Fax: 1 313 416 4106
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Pioneer Std.
44190 Plymouth Oaks Drive
Plymouth
Michigan 48270
Tel: 1 313 416 2157
Fax: 1 313 416 2415
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Pioneer Std.
4467 Byron Center Road
Wyoming
Michigan 49509
Tel: 1 616 534 0500
Fax: 1 616 534 3922
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Minnesota
Hamilton/Hallmark–#63
9401 James Avenue South,
Ste.140
Bloomington
Minnesota 55341
Tel: 1 612 881 2600
Fax: 1 612 881 9461
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Anthem Electronics
7690 Golden Triangle Drive
Eden Prairie
Minnesota 55344
Tel: 1 612 944 5454
Fax: 1 612 944 3045
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Future Electronics Corp.
10025 Valley View Road,
Ste.196
Eden Prairie
Minnesota 55344
Tel: 1 612 944 2200
Fax: 1 612 944 2520
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Pioneer Std.
7625 Golden Triangle Drive
Eden Prairie
Minnesota 55344
Tel: 1 612 944 3355
Fax: 1 612 944 3794
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All American
7716 Golden Triangle Drive
Eden Prairie
Minnesota 55344
Tel: 1 612 944 2151
Fax: 1 612 944 9803
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Marshall Industries
14800, 28th. Avenue North,
Ste.175
Minneapolis
Minnesota 55447
Tel: 1 612 559 2211
Fax: 1 612 559 8321
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Missouri
Hamilton/Hallmark–#05
3783 Rider Trail South
Earth City
Missouri 63045
Tel: 1 314 291 5350
Fax: 1 314 770 6363
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Marshall Industries
514 Earth City Expressway,
Ste.131
Earth City
Missouri 63045
Tel: 1 314 770 1749
Fax: 1 314 770 1486
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Future Electronics Corp.
12125 Woodcrest Executive
Drive, Ste.220
St. Louis
Missouri 63141
Tel: 1 314 469 6805
Fax: 1 314 469 7226
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New Hampshire
see Massachusetts
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
New Hampshire
see Massachusetts
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New Jersey
Hamilton/Hallmark–#14
One Keystone Avenue
Cherry Hill
New Jersey 08003
Tel: 1 609 424 0100
Fax: 1 609 751 2509
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ÁÁÁÁÁÁÁÁ
Bell Industries
271 Route 46 West,
Ste.F202–203
Fairfield
New Jersey 07004
Tel: 1 201 227 6060
Fax: 1 201 227 2626
ÁÁÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
Marshall Industries
101 Fairfield Road
Fairfield
New Jersey 07006
Tel: 1 201 882 0320
Fax: 1 201 882 0095
ÁÁÁÁÁÁÁÁ
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
Pioneer Std.
14 A Madison Road
Fairfield
New Jersey 07006
Tel: 1 201 575 3510
Fax: 1 201 575 3454
Distributors
V. dist.10
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Future Electronics Corp.
12 East Stow Road, Ste.200,
Bldg. 12
Marlton
New Jersey 08053
Tel: 1 609 596 4080
Fax: 1 609 596 4266
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ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
Bell Industries
158 Gaither DR Ste.110
Mount Laurel
New Jersey 08054–1716
Tel: 1 609 439 8860
Fax: 1 609 439 9009
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
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ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Marshall Industries
158 Gaither Drive, Unit 100
Mt. Laurel
New Jersey 08054
Tel: 1 609 234 9100
Fax: 1 609 778 1819
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
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ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Future Electronics Corp.
1259 Route 46 East
Parsippany
New Jersey 07054
Tel: 1 201 299 0400
Fax: 1 201 299 1377
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
Anthem Electronics
26 Chapin Road
Pine Brook
New Jersey 07058
Tel: 1 201 227 7960
Fax: 1 201 227 9246
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁ
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ÁÁÁÁÁÁÁÁ
All American
245–D Clifton Avenue
West Berlin
New Jersey 08091
Tel: 1 609 768 6767
Fax: 1 609 768 3649
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
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Á
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ÁÁÁÁÁÁÁÁ
New Mexico
Hamilton/Hallmark–#22
NE–Bldg. 2, Ste.102
7801 Academy Road
Albuquerque
New Mexico 87109–3147
Tel: 1 505 345 0001
Fax: 1 505 828 0360
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
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Á
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Á
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ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
New York
Pioneer Std.
1249 Upper Front Street,
Ste.201
Binghamton
New York 13901
Tel: 1 607 722 9300
Fax: 1 607 722 9562
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
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ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
Marshall Industries
100 Marshall Drive
Endicott
New York 13760
Tel: 1 607 785 2345
Fax: 1 607 785 5546
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
Á
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Pioneer Std.
840 Fairport Park
Fairport
New York 14450
Tel: 1 716 381 7070
Fax: 1 716 381 5955
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All American
275B Marcus Boulevard
Hauppauge
New York 11788
Tel: 1 516 434 9000
Fax: 1 516 434 9394
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Future Electronics Corp.
801 Motor Parkway
Hauppauge
New York 11788
Tel: 1 516 234 4000
Fax: 1 516 234 6183
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Hamilton Hallmark–#20
390 Rabro Dr.
Hauppauge
New York 11788
Tel: 1 516 434 7470
Fax: 1 516 434 7491
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Zeus Electronics
100 Midland Avenue
Port Chester
New York 10573
Tel: 1 914 937 7400
Fax: 1 914 937 2553
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All American
333 Metro Park
Rochester
New York 14623
Tel: 1 716 292 6700
Fax: 1 716 292 6755
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Future Electronics Corp.
300 Linden Oaks
Rochester
New York 14620
Tel: 1 716 387 9550
Fax: 1 716 387 9563
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Hamilton/Hallmark–#61
1057 East Henrietta Road
Rochester
New York 14623
Tel: 1 716 475 9130
Fax: 1 716 475 9119
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Marshall Industries
1250 Scottsville Road
Rochester
New York 14624
Tel: 1 716 235 7620
Fax: 1 716 235 0052
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Marshall Industries
3505 Veterans Memorial HWY
Ste L
Ronkonkoma
New York 11779–7613
Tel: 1
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Future Electronics Corp.
200 Salina Meadows Pkwy.,
Ste.130
Syracuse
New York 13212–4513
Tel: 1 315 451 2371
Fax: 1 315 451 7258
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Hamilton/Hallmark–#08
100 Elwood Davis Road
Syracuse
New York 13212
Tel: 1 315 453 4000
Fax: 1 315 453 4010
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Pioneer Std.
60 Crossways Park West
Woodbury
New York 11797
Tel: 1 516 921 8700
Fax: 1 516 921 2143
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North Carolina
Future Electronics Corp.
8401 University Executive
Park, Ste.108
Charlotte
North Carolina 28262
Tel: 1 704 547 1107
Fax: 1 704 547 9650
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Future Electronics Corp.
Smith Tower, Ste. 314
Charlotte Motor Speedway
Concord
P.O. Box 600
North Carolina 28026
Tel: 1 704 455 9030
Fax: 1 704 455 9173
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Pioneer Tech.
2200 Gateway Center Blvd.,
Ste.215
Morrisville
North Carolina 27560
Tel: 1 919 460 1530
Fax: 1 919 460 1540
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Anthem Electronics
4805 Green Road, Ste.100
Raleigh
North Carolina 27604
Tel: 1 919 871 6200
Fax: 1 919 790 8970
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Future Electronics Corp.
5225 Capitol
Raleigh
North Carolina 27604
Tel: 1 919 790 7111
Fax: 1 919 790 9022
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Hamilton/Hallmark
5234 Greens Dairy Road
Raleigh
North Carolina 27604
Tel: 1 919 872 0712
Fax: 1 919 878 8729
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Marshall Industries
5224 Greens Dairy Road
Raleigh
North Carolina 27604
Tel: 1 919 878 9882
Fax: 1 919 872 2431
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Ohio
Future Electronics Corp.
1430 Oak Court, Ste.203
Beavercreek
Ohio 45430
Tel: 1 513 426 0090
Fax: 1 513 426 8490
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Pioneer Std.
4800 East 131st Street
Cleveland
Ohio 44105
Tel: 1 216 587 3600
Fax: 1 216 587 3906
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Bell Industries
446 Windsor Park Drive
Dayton
Ohio 45459
Tel: 1 513 434 8231
Fax: 1 513 434 8103
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Hamilton/Hallmark–#64
7760 Washington Village Drive
Dayton
Ohio 45459
Tel: 1 513 439 6721
Fax: 1 513 439 6705
Distributors
V. dist.11
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Marshall Industries
3520 Park Center Drive
Dayton
Ohio 45414
Tel: 1 513 898 4480
Fax: 1 513 898 9835
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Pioneer Std.
4433 Interpoint Blvd.
Dayton
Ohio 45424
Tel: 1 513 236 9900
Fax: 1 513 236 8133
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Zeus Components
8200 Washington Village Drive
Dayton
Ohio 45458
Tel: 1 513 291 0276
Fax: 1 513 291 9060
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Future Electronics Corp.
6009 East Lander Haven Drive
Maryfield Heights
Ohio 44124
Tel: 1 216 449 6996
Fax: 1 216 449 8987
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Marshall Industries
30700 Bainbridge Road Unit A
Solon
Ohio 44139
Tel: 1 216 248 1788
Fax: 1 216 248 2312
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Anthem Electronics
1286 Vantage Way
Streetsboro
Ohio 44241
Tel: 1 800 359 3520
Fax: 1 216 626 5001
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Hamilton/Hallmark–#79
777 Dearboran Lane, Ste.L
Worthington
Ohio 43085
Tel: 1 614 888 3313
Fax: 1 614 888 0767
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Oklahoma
Hamilton/Hallmark
5411 South 125th East Avenue,
Ste.305
Tulsa
Oklahoma 74146
Tel: 1 918 252 7297
Fax: 1 918 254 6207
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Pioneer Std.
9717 East 42nd Street, Ste.105
Tulsa
Oklahoma 74146
Tel: 1 918 665 7840
Fax: 1 918 665 1891
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Oregon
All American
1815 NW 169th Pl., Ste.6025
Beaverton
Oregon 97006
Tel: 1 503 531 3333
Fax: 1 503 531 3695
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Bell Industries
8705 SW Nimbus, Ste.100
Beaverton
Oregon 97008
Tel: 1 503 644 3444
Fax: 1 503 520 1948
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Future Electronics Corp.
Cornell Oaks Corp. Center
15236 North West Greenbrier
Beaverton
Oregon 97006
Tel: 1 503 645 9454
Fax: 1 503 645 1559
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Hamilton/Hallmark–#27
9750 South West Nimbus Ave.
Beaverton
Oregon 97005
Tel: 1 503 526 6200
Fax: 1 503 641 5939
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Marshall Industries
9705 South West Gemini
Beaverton
Oregon 97005
Tel: 1 503 644 5050
Fax: 1 503 646 8256
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Pioneer Tech.
8905 S.W. Gemini Drive
Beaverton
Oregon 97008
Tel: 1 503 626 7300
Fax: 1 503 626 5300
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Anthem Electronics
15115 S.W. Sequoia, Ste.160
Portland
Oregon 97226
Tel: 1 503 598 9660
Fax: 1 503 598 7893
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Pennsylvania
Anthem Electronics
355 Business Center Drive
Horsham
Pennsylvania 19044
Tel: 1 215 443 5150
Fax: 1 215 675 9875
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Pioneer Tech.
Keith Valley Business Center
500 Enterprise Road
Horsham
Pennsylvania 19044
Tel: 1 215 674 4000
Fax: 1 215 674 3107
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Pioneer Std.
259 Kappa Drive
Pittsburgh
Pennsylvania 15238
Tel: 1 412 782 2300
Fax: 1 412 963 8255
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Texas
All American
6400 McNeil Road, Ste.203
Austin
Texas 78729
Tel: 1 512 335 2280
Fax: 1 512 335 2282
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Anthem Electronics
14040 Summit Park Drive,
Ste.119
Austin
Texas 78728
Tel: 1 512 388 0049
Fax: 1 512 388 0271
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Future Electronics Corp.
6850 Austin Center Blvd.
Ste.320
Austin
Texas 78731
Tel: 1 512 502 0991
Fax: 1 512 502 0740
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Hamilton/Hallmark–#26
12211 Technology Blvd.
Austin
Texas 78727
Tel: 1 512 258 8848
Fax: 1 512 258 3777
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Marshall Industries
8504 Cross Park Drive
Austin
Texas 78727
Tel: 1 512 837 1991
Fax: 1 512 832 8910
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Pioneer Std.
1826 D Kramer Lane
Austin
Texas 78758
Tel: 1 512 835 4000
Fax: 1 512 835 9829
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Zeus Electronics
3220 Commander Drive
Carrollton
Texas 75006
Tel: 1 214 380 4330
Fax: 1 214 447 2222
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Hamilton Hallmark
11333 Pagemill Rd
Dallas
Texas 75243
Tel: 1 214 553 6800
Fax: 1 214 553 4359
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Pioneer Std.
13765 Beta Road
Dallas
Texas 75244
Tel: 1 214 386 7300
Fax: 1 214 490 6419
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All American
11210 Steeplecrest, Ste.206
Houston
Texas 77065
Tel: 1 713 955 1993
Fax: 1 713 955 2215
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Hamilton/Hallmark–#11
8000 West Glenn
Houston
Texas 77063
Tel: 1 713 781 6100
Fax: 1 713 953 8420
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Marshall Industries
10681 Haddington, Ste.160
Houston
Texas 77043
Tel: 1 713 467 1666
Fax: 1 713 467 9805
Distributors
V. dist.12
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Pioneer Std.
10530 Rockley Road, Ste.100
Houston
Texas 77099
Tel: 1 713 495 4700
Fax: 1 713 495 5642
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Future Electronics Corp.
10333 Richmond Avenue,
Ste.970
Houston, TX 77042
Texas 77042
Tel: 1 800 785 1156
Fax: 1 713 785 4558
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All American
1771 International Parkway,
Ste.101
Richardson
Texas 75081
Tel: 1 214 231 5300
Fax: 1 214 437 0353
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All American Semiconductor
1771 International Parkway,
Ste.101
Richardson
Texas 75081
Tel: 1 214 231 7100
Fax: 1 214 437 0353
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Anthem Electronics
651 N. Plano Road, Ste.401
Richardson
Texas 75081
Tel: 1 214 238 7100
Fax: 1 214 238 0237
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Bell Industries
1701 Greenville Avenue,
Ste.306
Richardson
Texas 75081
Tel: 1 214 458 0047
Fax: 1 214 404 0267
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Future Electronics Corp.
800 East Cambell
Richardson
Texas 75081
Tel: 1 214 437 2437
Fax: 1 214 669 2347
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Marshall Industries
1551 North Glenville Drive
Richardson
Texas 75081
Tel: 1 214 705 0604
Fax: 1 214 705 0675
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Future Electronics Corp.
6800 Park Ten Blvd.,
Ste.137–E
San Antonio
Texas 78213
Tel: 1 210 738 3330
Fax: 1 210 738 0511
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Utah
Bell Industries
6912 South 185 West, Ste.B
Midvale
Utah 84047
Tel: 1 801 561 9691
Fax: 1 801 255 2477
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All American
4455 South 700 East, Ste.301
Salt Lake City
Utah 84107
Tel: 1 801 261 4210
Fax: 1 801 261 3885
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Anthem Electronics
1279 West 2200 South
Salt Lake City
Utah 84119
Tel: 1 801 973 8555
Fax: 1 801 973 8909
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Future Electronics Corp.
3450 South Highland Drive,
Ste.301
Salt Lake City
Utah 84106
Tel: 1 801 467 4448
Fax: 1 801 467 3604
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Hamilton/Hallmark–#09
1100 East 6600 South, Ste.120
Salt Lake City
Utah 84121
Tel: 1 801 266 2022
Fax: 1 801 263 0104
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Marshall Electronics
2355 S. 1070 West, Ste.10 D
Salt Lake City
Utah 84119–1552
Tel: 1 801 973 2288
Fax: 1 801 973 2296
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Washington
Bell Industries
1715 114th Avenue,South East
208
Bellevue
Washington 98004
Tel: 1 206 646 8750
Fax: 1 206 646 8559
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Pioneer Tech
2800 156th Avenue, South East
Bellevue
Washington 98007
Tel: 1 206 644 7500
Fax: 1 206 644 7300
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Anthem Electronics
19017–120th Ave.Ne.Ste.102
Bothell
Washington 98011
Tel: 1 206 483 1700
Fax: 1 206 486 0571
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Future Electronics Corp.
19102 N. Creek Pkwy., Ste.118
Bothell
Washington 98011
Tel: 1 206 489 3400
Fax: 1 206 489 3411
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Marshall Industries
11715 N. Creek Pkwy., South,
Ste.112
Bothell
Washington 98011
Tel: 1 206 486 5747
Fax: 1 206 486 6964
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Hamilton/Hallmark–#07
8630 154th Avenue,North East
Redmond
Washington 98052
Tel: 1 206 881 6697
Fax: 1 206 867 0159
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Wisconsin
Future Electronics Corp.
250 N. Patrick Blvd., Ste.170
Brookfield
Wisconsin 53045
Tel: 1 414 879 0244
Fax: 1 414 879 0250
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Pioneer Std.
120 Bishops Way, Ste.163
Brookfield
Wisconsin 53005
Tel: 1 414 784 3480
Fax: 1 414 784 8207
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Marsh Electronics, Inc.
1563 South 101st Street
Milwaukee
Wisconsin 53214
Tel: 1 414 475 6000
Fax: 1 414 771 2847
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Hamilton/Hallmark–#57
2440 South 179th Street
New Berlin
Wisconsin 53146
Tel: 1 414 780 7200
Fax: 1 414 780 7201
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Bell Industries
W.226 N–900 Eastmound
Drive
Waukesha
Wisconsin 53186
Tel: 1 414 547 8879
Fax: 1 414 547 6547
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Future Electronics Corp.
20875 Crossroads Cir., Ste.200
Waukesha
Wisconsin 53186
Tel: 1 414 786 1884
Fax: 1 414 879 0250
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Marshall Industries
20900 Swenson Drive
Waukesha
Wisconsin 53186
Tel: 1 414 797 8400
Fax: 1 414 797 8270
Distributors
V. dist.13
Canada
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Alberta
Future Electronics Corp.
2015 32nd Ave.,NE, Ste.1
T2E 6Z3 Calgary
Tel: 1 403 250 5550
Fax: 1 403 291 7054
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Future Electronics Corp.
4606 97th Street
T6E 5N9 Edmonton
Tel: 1 403 438 2858
Fax: 1 403 434 0812
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British Columbia
Hamilton/Hallmark–#45
8610 Commerce Ct.
V5A 4N6 Burnaby
Tel: 1 604 420 4101
Fax: 1 604 420 5376
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Future Electronics Corp.
1695 Boundary Road
V5K 4X7 Vancouver
Tel: 1 604 294 1166
Fax: 1 604 294 1206
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Manitoba
Future Electronics Corp.
106 King Edward Court
R3H 0N8 Winnipeg
Tel: 1 204 786 7711
Fax: 1 204 783 8133
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Ontario
Future Electronics Corp.
5935 Airport Road, Ste.200
L4V 1W5 Mississauga
Tel: 1 905 612 9200
Fax: 1 905 612 9185
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G. S. Marshall–Canada
6285 Northam Drive, Ste.112
L4V 1X5 Mississauga
Tel: 1 905 612 1771
Fax: 1 905 612 1988
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Hamilton/Hallmark–#59
151 Superior Blvd.
L5T 2L1 Mississauga
Tel: 1 905 564 6060
Fax: 1 905 564 6033
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Future Electronics Corp.
Baxter Centre
1050 Baxter Road
K2C 3P2 Ottawa
Tel: 1 613 820 8313
Fax: 1 613 820 3271
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Quebec
Future Electronics Corp.
237 Hymus Blvd.
H9R 5C7 Pointe Claire
Tel: 1 514 694 7710
Fax: 1 514 695 3707
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Marshall Industries
148 Brunswick Blvd.
H9R 5P7 Pointe Claire
Tel: 1 514 694 8142
Fax: 1 514 694 6989
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Future Electronics Corp.
1000 Avenue St. Jean–Baptiste,
Ste.100
G2E 5G5 Quebec
Tel: 1 418 682 8092
Fax: 1 418 682 8303
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Hamilton/Hallmark–#65
7575 Transcanadiene Highway,
Ste.600
H4T 1V6 St. Laurent
Tel: 1 514 335 1000
Fax: 1 514 355 2381
South America
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Argentina
Compania de Semiconductores
y Componentes S.A.
Parana 751/55
1017 Buenos Aires
Tel: 54 1 373 4091
Fax: 54 1 325 8689
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Electrocomponentes S.A.
Solis 225/227/229
1078 Buenos Aires
Tel: 54 1 4761 864
Fax: 54 1 3258 076
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Brasil
Politronic Produtos Eletroele-
tronicos Ltda.
Rua Manoel Ignacio Moreira
200
13210–770 Jundiai–SP
Tel: 55 11 7397 2428
Fax: 55 11 7397 1012
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Atlas Componentes Eletronicos
Ltda.
Vila Mariana
R.Tenente Gomes Ribei-
ro,182–10 Andar
04038–040 Sao Paulo–SP
Tel: 55 11 574 0404
Fax: 55 11 573 3144
Distributors
V. dist.14
Asia Pacific
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Australia
Braemac Pty Ltd
1/59–61 Burrows Road
Alexandria NSW 2015
Tel: 61 2 550 6600
Fax: 61 2 550 6377
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Consulaust International Ptv
Ltd
3rd Floor, 10 Bridge Street
Granville, NSW 2142
Tel: 61 2 637 2558
Fax: 61 2 682 4521
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Consulaust International Pty.
Ltd.
2064 Artarmon
P.O.Box 994
NSW
Tel: 61 2 415 965
Fax: 61 2 411 5294
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IRH Components
1–5 Carter Street
2128 Silverwater
NSW
Tel: 61 2 364 1766
Fax: 61 2 648 3505
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Hong Kong
Audio Mechanical Corp. Ltd.
Ste.1701 A World Finance
Centre
South Tower, Harbour City
17, Canton Road, Tsimshatsui
Kowloon
Tel: 852 2 736 8192
Fax: 852 2 735 0926
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Aggressive
Unit 6,BlkB,7/F Hoi Luen Ind
C
55 Hoi Yuen Road
Kowloon
Kwuntong
Tel: 852 2342 2181
Fax: 852 2797 9388
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Willas–Array Electronics Ltd.
200 Tai Lin Pai Road
Unit 1,24/F, Wyler Centre
Phase 2
Kwai Chung
N.T.
Tel: 852 2 418 3700
Fax: 852 2 481 6992
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India
Blue Star Limited
Blue Star House 11/A
Magarath Road
560 025 Bangalore
Tel: 91 80 558 4728
Fax: 91 80 558 4599
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Spectra Innovations Inc.
S–822 Manipal Centre
47 Dickenson Road
560–042 Bangalore
Tel: 91 8055 8800 1
Fax: 91 8055 8687 2
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Spectra Innovations Inc.
301, 5–Pusa Road
110005 New Delhi
Tel: 91 11 7535 719
Fax: 91 11 7525 341
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Blue Star Limited
Sahas 414/2
Veer Savarkar Marg
400025 Prabhadevi, Bombay
Tel: 91 22 430 6155
Fax: 91 22 430 7078
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Korea
Changnam Electronics Industry
#44–22, Yoido–Dong
9th Fl., Hosung Bldg.
Seoul
Youngdeungpo–Ku
Tel: 82 2 7820 412
Fax: 82 2 7847 702
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Malaysia
Scan Components (M)
Sdn.Bhd.
11900 Sungei Nibong
761–B, Jalan Sultan Azlan
Shah
Penang
Tel: 60 4 643 5136
Fax: 60 4 643 6320
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New Zealand
Arrow (NZ) Ltd.
19–21 Pretoria Street
Lower Hutt
P.O.Box 31186, WMC
Tel: 64 4 566 3222
Fax: 64 4 566 2111
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Rep. of Singapore
Tomen (S) Pte Ltd
10 Shenton Way,#16–02 MAS
Build.
Singapore 079117
Tel: 65 221 1422
Fax: 65 221 0400
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Ryosho Techno (S) Pte Ltd
396 Alexandra Road, #04–03
BP Tower
Singapore 119955
Tel: 65 473 7118
Fax: 65 479 8286
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Spectra Innovations Inc.
#01–07 Henderson Industr.
Park
213 Henderson Road
Singapore 159553
Tel: 65 271 0016
Fax: 65 271 4112
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Uppertech Singapore
Cititech Industrial Building
629 Aljunied Road #03–10
Singapore 389838
Tel: 65 747 4900
Fax: 65 747 1234
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Willias–Array (S) Pte Ltd
40 Jalan Pemimpin
# 04–03B Tat Ann Building
Singapore 577185
Tel: 65 353 3655
Fax: 65 353 6153
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Scan Technology (S) Pte Ltd.
Jurong Industrial Estate
10 Penjuru Lane
Singapore 609190
Tel: 65 2 652 655
Fax: 65 2 655 200
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Taiwan, R.O.C.
Dynamar Taiwan Co. Ltd.
Section 4
#142, 11 F–7 Chung–Hsiao
East Road
Taipei
Tel: 886 2 721 3007
Fax: 886 2 775 1597
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Uppertech Enterprise Co.,Ltd.
Hsin Tien City
6F, No 92,Pao Chung Road
Taipei
Tel: 886 2 916 1997
Fax: 886 2 914 1152
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World Peace Industrial Co., Ltd
.
8 F., 76, Section 1
8F,76 Cheng Kung Road, Nan-
kang
Taipei
Tel: 886 2 7885 200
Fax: 886 2 7883 255
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Thailand
Scan Technology (T) Pte Ltd
93/37 Modern Group Building
Chaeng Wattana Road
Pakkred Nontaburi, 11120
Tel: 662 982 9023
Fax: 662 574 6386
Japan
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Ryoden Trading Co., Ltd.
3–15–15 Higashi–Ikebukuru,
Toshima–ku
Tokyo 170
Tel: 81 3 5396 6233
Fax: 81 3 5396 6443
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Ryoden Trading Co., Ltd.
4–1–4, Miyahara, Yodogawa–
ku
Osaka 532
Tel: 81 6 399 3436
Fax: 81 6 399 3460
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Tomen Electronics Corp.
Nisshin Bldg.
1–8–27, Konan, Minato–ku
Tokyo 108
Tel: 81 3 5462 9629
Fax: 81 3 5462 9684
TSC 80251A1
MATRA MHS
TEMIC reserves the right to make changes in the products or specifications contained in this datasheet in order to
improve design or performance and to supply the best possible products. TEMIC also assumes no responsibility for
the use of any circuits described herein, conveys no license under any patents or other rights, and makes no
representations that the circuits are free from patent infringement. Applications for any integrated circuits contained
in this publication are for illustration purposes only and TEMIC makes no representation or warranty that such
applications will be suitable for the use specified without further testing or modification. Reproduction of any portion
hereof without the prior written consent of TEMIC is prohibited.
On line information
World Wide Web: http://www.temic.de
Copyright INTEL Corporation 1994. Portions reprinted by permission of INTEL Corporation.
“Quick Pulse Algorithm” is a trademark Intel.
