USER'S MANUAL ERRATA
This document contains the corrections of errors,
typos and omissions in the following document.
Samsung 8-bit CMOS S3C8248/C8245/P8245/C8247/C8249/P8249
Microcontroller User's Manual
Document Number: 22-S3-C8248/C8245/P8245/C8247/C8249/P8249
Publication: December 2000
S3C8248/C8245/P8245/C8247/C8249/P8249 USER'S MANUAL ERRATA
DECEMBER 2000
ERRATA
Samsung 8-bit CMOS S3C8248/C8245/P8245/C8247/C8249/P8249 Microcontroller User's Manual
DocumentNumber: 22-S3-C8248/C8245/P8245/C8247/C8249/P8249
Publication: December 2000
REGISTER ARCHITECTURE
In the S3C8248/C8245/C8247/C8249 implementation, the upper 64-byte area of register files is expanded two
64-byte areas, called set 1 and set 2. The upper 32-byte area of set 1 is further expanded two 32-byte register
banks (bank 0 and bank 1), and the lower 32-byte area is a single 32-byte common area.
In case of S3C8247/C8249/P8249 the total number of addressable 8-bit registers is 1122. Of these 1122
registers, 16 bytes are for CPU and system control registers, 16 bytes are for LCD data registers, 50 bytes are for
peripheral control and data registers, 16 bytes are used as a shared working registers, and 1024 registers are for
general-purpose use, page 0-page 4 (in case of S3C8248/C8245/P8245, page 0-page 4 except page 2, 3).
You can always address set 1 register locations, regardless of which of the four register pages is currently
selected. Set 1 locations, however, can only be addressed using register addressing modes.
The extension of register space into separately addressable areas (sets, banks, and pages) is supported by
various addressing mode restrictions, the select bank instructions, SB0 and SB1, and the register page pointer
(PP).
Specific register types and the area (in bytes) that they occupy in the register file are summarized in Table 2–1.
Table 2-1. S3C8247/C8249/P8249 Register Type Summary
Register Type Number of Bytes
General-purpose registers (including the 16-byte
common working register area, four 192-byte prime
register area, and four 64-byte set 2 area)
LCD data registers
CPU and system control registers
Mapped clock, peripheral, I/O control, and data registers
1,040
16
16
50
Total Addressable Bytes 1,122
Table 2-2. S3C8248/C8245/P8245 Register Type Summary
Register Type Number of Bytes
General-purpose registers (including the 16-byte
common working register area, four 192-byte prime
register area, and four 64-byte set 2 area)
LCD data registers
CPU and system control registers
Mapped clock, peripheral, I/O control, and data registers
528
16
16
50
Total Addressable Bytes 610
USER'S MANUAL ERRATA S3C8248/C8245/P8245/C8247/C8249/P8249
DECEMBER 2000
System Registers
(Register Addressing Mode)
General Purpose Register
(Register Addressing Mode)
Bank 1
System and
Peripheral Control
Registers
Bank 0
System and
Peripheral Control
Registers
(Register Addressing Mode)
Set1
FFH
E0H
32
Bytes
E0H
DFH
D0H
CFH
C0H
Prime
Data Registers
(All addressing modes)
LCD Display Reigster
~ ~
Page 4
0FH
00H
16
Bytes
~
Page 1
~
Page3
~
Page 2
~
Page 1
Page 0
Prime
Data Registers
(All Addressing Modes)
Page 0
Set 2
General-Purpose
Data Registers
(Indirect Register, Indexed
Mode, and Stack
Operations)
~ ~ ~
C0H
BFH
00H
FFH
FFH
FFH
FFH
192
Bytes
64
Bytes
256
Bytes
NOTE: In case of S3C8248/C8245/P8245, there are page 0, page 1, and page 4.
Page 4 is for LCD display register, 16 bytes.
Figure 2-2. Internal Register File Organization
