EA IC202 16.12.97 HIGH-LEVEL GRAPHICS CONTROLLER FOR HD61202 (KS0108B) - DISPLAYS PLCC44J FEATURES * * * * * * * * * * * * * * * * FOR LC GRAPHICS DISPLAYS 128x64 WITH HD 61202 OR COMPATIBLE NO TIMING PROBLEMS WITH FAST BUS SYSTEMS EASY PROGRAMMING OF VARIOUS BUILT IN GRAPH FUNCTIONS: STRAIGHT LINE, DOT, AREA, AND/OR/EXOR, BAR GRAPH, PATTERNS... 3 DIFFERENT FONTS BUILT IN ZOOM FUNCTION FOR ALL FONTS (2-, 3- AND 4-TIMES) 4-16 FREE DEFINEABLE CHARACTERS (DEPENDING ON SIZE) MIXING TEXT AND GRAPHICS INPUT ON RS-232 WITH 10V/ CMOS-LEVEL DIRECT ACCESS TO MAX232 OR EQUIVALENT PROGRAMMABLE BAUD RATES FROM 300 UP TO 115,200 BAUD ONLY MAX. 4 EXTERNAL COMPONENTS REQUIRED 8 DIGITAL I/OS FREE AVAILABLE FOR CUSTOM DESIGNS 5V / typ. 12mA RATED INPUT (AT 11,059 MHz) POWER-SAVE FUNCTION: CONSUMPTION max. 100A @ 5V HARDWARE CODES UP TO 4 ADRESSES OPTIONS (IN PROGRESS) * VERSION FOR VERTICAL DISPLAY MOUNTING (90O ROTATED) * 40-PIN DIL PACKAGE VERSION ORDER DESIGNATION HIGH-LEVEL GRAPH CONTROLLER 128x64 FOR HD61202 SUITABLE GRAPHICS DISPLAY INCL. HD61202, 128x64 CERAMIC RESONATOR SMD 7,37MHz, 3 PINS INCL. CAPs GRAPHICS MODULE WITH IC202-PGH AND RS-232C EA EA EA EA IC202-PGH P128-6N3LED KERS7M37-C GE128-6N3V24 LOCHHAMER SCHLAG 17 * D- 82 166 GRAFELFING PHONE +49-89 -8 54 19 91 * FAX +49-89-8 54 17 21 EA IC202 GENERAL The EA IC202 high-level Graphics Controller links your system processor to your graphic display. Inputs accepts a serial asynchronous RS-232 interface. The graphics controller includes complete graph routines and various character sizes. Programming is made by high level language graph commands; time consuming programming of character sets and graph routines is not necessary anymore. Expenditure for developing of your product is reduced significant and several features are gained on top of it: - no timing problems with fast processor bus - enough memory space (operating memory and characterset memory especially for C) - no time consuming graphic calculations which would slow down processor speed Connecting to hardware is very simple. Display and main processor are connected directly. Drivers, decoders or port modules are not required. A simple display input need 1 wire (RxD) only. 2 up to maximal 4 external components will complete the circuit: a quartz with 2 capacitors and a resetcapacitor. No external components are needed when you operate with 8051-compatible systems. Clock and reset signal can be taken from main processor. HARDWARE Supply voltage of system is +5 Volts. Data transfer is asynchronous serial in RS-232 format at CMOS level. Data format is set to 8 data bits, 1 stop bit and no parity. Baud rate can be selected on 3 pins from 150 Baud up to 115200 Baud. Handshake lines RTS and CTS on board too. There is no interpretation needed for small quantities of datas. Data format: Additional 8 I/O-ports are available for free usage. This may be wired as inputs or outputs on individual desire. Possible application is switching of backpanel illumination or reading of several keys. SOFTWARE Programming of this High-Level graphics controller is performed by commands like i.e. "draw a rectangular box from (0,0) to (64,15) which origins in top left hand corner of display". Therefore the serial interface has to transmit this sequence of bytes: $52 $00 $00 $40 $0F. Characters string can be placed precisely to the pixel. Mixing of graphic images with text elements is possible anytime. Three different character sets are available where each of them can be zoomed by factors 2-, 3- or 4-times. The biggest character set 16x8 allows when using 4-x zoom (=64x32) a totally filled display with letters and numbers. TEST MODE As long as pin 9 (RTS) is after Power-On or after Reset connected with GND, the graphics controller is in test mode. Display shows now a marked flashing box. When connection Pin 9 (RTS) to GND is removed, the graphics controller returns to normal operation mode but testbox still remains visible. 2 EA IC202 Symbol Parameter Valid for Condition Min Max Units 4 6 V VDD Power Supply VDD 11,059 MHz ICC Power Supply Current VDD, Controller is busy 11,059 MHz 25 mA ICC Power Supply Current VDD, Controller is ready 11,059 MHz 6.5 mA ICPS Power Supply Current Power-Save-Mode VDD VDD=6V VDD=3V 100 40 A A -0.5 0.2*VDD-0.1 V 0.2*VDD+ VDD+0.5 V 0.7*VDD VDD+0.5 V IOL=3.2mA 0.45V V VIN=0.45V -50 A VIN=2V -650 A 0.45high n1=2: Power Save for controller and display; RTS->high, LCDON->low n1=0..7: reset I/O port n1 (n2=0); set (n2=1); invert (n2=2) n1=8: Set all 8 I/O ports in accordance with n2 (=8 bit binary value) n2 Send commands Hard copy H x1 Read I/O port X n1 Query display type ? 6 y1 x2 y2 An area is requested as a picture. The width and height are sent in pixels first of all, followed by the actual picture data, via RS232. n1=0..7: load I/O port (1=H level=5V, 0=L level=0V) n1=8: load all 8 I/O ports I/O0..I/O7 as 8-bit binary value This command is used to query the display type. 3 bytes are sent back: 128 64 V (128x64 dots, vertical picture) EA IC202 PARAMETERS All commands with parameters, coordinates and other hand over datas are expected as of Bytes. No seperating characters are allowed, i.e. no space bars, no commas. End of command does not need a final Byte i.e. no Carrige Return. A..Z, L/R/O/U ................................... All commands are transmitted as ASCII code. Example: G = 71 (dec.) = $47 initiates the straight line drawing command. x1, x2, y1, y2 ................................... Coordinates are transmitted with one Byte; applicable values are 0..127 for x- resp. 0..63 for y- coordinates. Example: x1= 10 (dec.) = $0A n1,n2,nr,aw,ew,value,ptn,data ...... Parameters with numbers are transmitted with one Byte. Example: n1= 15 (dec.) = $0F EXAMPLE OF PROGRAMMING The following table shows an example in wich the character string "Test" is output at coordinates 7,3. Example ASCII Hex Decimal Turbo-Pascal C Q-Basic Codes Z $5A 90 BEL ETX $07 7 $03 3 T $54 84 e $65 101 s $73 115 t $74 116 NUL $00 0 write(aux, 'Z', chr(7), chr(3), 'Test', chr(0)); fprintf(stdaux, "%c%c%c%s%c", 'Z', 7, 3, "Test", 0); OPEN "COM1:1200,N,8,2,BIN" FOR RANDOM AS #1 PRINT #1,"Z"+CHR$(7)+CHR$(3)+"Test"+CHR$(0) PATTERN Several commands allow pattern type parameters (ptn = 0..7). They are used e.g. for rectangular areas, bargraphs or text lines with various pattern. The following fill patterns are available: ptn=0 white ptn=1 black ptn=2 25% gray ptn=3 50% gray ptn=4 75% gray ptn=5 45 right ptn=6 45 left ptn=7 45cross hatch 7 EA IC202 DESCRIPTION OF VARIOUS GRAPHICS FUNCTIONS The following pages show detailed descriptions in alphabetical order for each individual function. Examples are shown as hardcopy in an enlarged window of 50 x 32 pixel once the command has been executed. Examples show all transfered bytes in Hex code. A x1 y1 n1 Set ASCII-Characters A character n1 will be displayed on coordinates x1,y1 with preset font 'F' and text mode 'T' (setzen / loschen / invertieren / replace / invers replace / pattern). Origin is (0,0) at top left hand corner of display. Datas for coordinates apply also to top left hand corner of a given character. Note: Font No.1 shows capital letters only. Example: $41 $13 $02 $45 Character 'E' is displayed at coordinates 19,2 Preset font: 6x8, width 2x and height 2x Text mode: Replace and black pattern B L/R/O/U nr x1 y1 x2 y2 aw ew ptn Define Bargraph Up to 8 bargraphs (nr=1..8) can be defined, which may oscillate to L=left, R=right, O=up or U=down direction. Bargraph full level range coordinates are described from x1,y1 to x2,y2. Scaling of bargraph is performed by starting zero position aw (=0..254) and max. ending position (full size) ew (=0..254). Bargraph always is displayed in inverse-mode using the ptn-pattern type: the background remains preserved in any case. (Note: executing this command only the bargraph range is defined but nothing is visible on display). Example: $42 $4F $01 $04 $02 $09 $1E $04 $14 $01 Defines bargraph no. 1 which oscillates vertical up to top. At full level its coordinates ranges from 4,2 to 9,30. Displayed start- and end values represent current values of 4..20 mA. (Hardcopy shows bargraph at its full level operating at $42 $01 $14) B nr value Draw Bargraph Bargraph number n1 (1..8) will be adjusted to a new value (aw <= value <= ew). If value > ew, than final value will be displayed. Bargraph must be defined before, see above example. Example: $42 $01 $0A Above defined bargraph no. 1 is set now to value 10. C n1 Display Control Switches display On (n1=1) or Off (n1=0); all display datas remains preserved and commands can be executed furthermore. Example: $43 $00 Content of display becomes invisible, but remains preserved. 8 EA IC202 D L/I/S Display Command Total content of display will be: L=deleted (white), I=inverted or S=filled (black) Example: $44 $49 inverts total content of display E n1 daten Define Character Up to 16 characters can be defined by yourself (depending on font size). This characters have ASCII codes from 1 to max.16 and remain stored in an internal 64 Byte RAM-area until the supply voltage is switched off. Up to 16 characters can be defined with font no.1, up to 10 characters with font no.2 and up to 4 characters with the biggest font, no.3. Attention! If several characters out of different fonts should be defined, than you have to consider that i.e. one character from 8x16 font, code 1 needs the same RAM-space as a character from 4x6 font, code 1 to 4 (see table nearby) ! Example 1: $45 $03 BYTE NR. 1 2 3 4 5 6 $04 $02 $7F $02 $04 $00 defines a up pointing arrow with ASCII-No. 3 and with a preset 6x8 character set. Example 2: $45 $02 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 $00 $00 $00 $FF $00 $00 $00 $00 $04 $08 $10 $3F $10 $08 $04 $00 defines a down pointing arrow with ASCII-No. 2 and with a preset 8x16 character set. BYTE NR. 1 2 3 4 5 6 7 8 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 9 10 11 12 13 14 15 16 BYTE NR. F n1 n2 n3 Define characters (ASCII) 4x6 6x8 8x16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 1 3 4 2 5 6 7 3 8 9 10 4 Set Font Font No. n1 (1=4x6 capital letters only; 2=6x8; 3=8x16) is choosed. Different zoom factors (1..4x) for width n2 and for height n3 are selected. Example: $46 $02 $03 $04 6x8- font is now set to 3-times width and to 4-times height. Beside hardcopy shows letter 'E' from font 6x8 in different sizes. G x1 y1 x2 y2 Draw straight line Straight line is drawn from coordinates x1,y1 to x2,y2 taking into account the preset graph mode 'V' (set / clear / invert). Example: $47 $03 $14 $28 $06 Draws a straight line from 3,20 to 50,6. 9 EA IC202 H x1 y1 x2 y2 Get Hardcopy from Display contents Range from top left hand corner x1,y1 to right hand bottom corner x2,y2 is requested. Graphic chip transmits first width and height of requested display-section and afterwards the datas of display-content. See command Uplouad picture 'U' for building up display datas. Example: $48 $00 $00 $1F $0F top left hand section of display-content (size 32 x 16 pixel) will be sent via RS-232 immediately. I x1 y1 x2 y2 Invert area The area from top left hand corner x1,y1 to right hand bottom corner x2,y2 will be inverted (black pixel turns to white and reversed). Example: $49 $00 $00 $17 $1B inverts display-content of example "Set Font" in area from 0,0 to 23,27. J x1 y1 x2 y2 ptn Draw a round box A rectangular box with rounded corners is drawn from top left hand corner x1,y1 to right hand bottom corner x2,y2 and filled with pattern ptn and delete background. See also Draw 'N' rounded corner boxes on next page. Example: $4A $07 $03 $23 $16 $03 draws a rounded corner box from 7,3 to 35,22 filled with pattern 3=50% black. K S/D n1 Select / Deselect Graphics Controller S=select or D=deselect Graphics Controller with its hardware adress n1 (0..3); adress 255=$FF is the masteradress for access all Graphics Controller. Adress setting is done by hardware (pin ADR0/1 see page 16). Example: $4B $44 $00 all commands for Graphics Controller with adress $00 will be ignored from now on. L x1 y1 x2 y2 Delete area Area from top left hand corner x1,y1 up to bottom right hand corner x2,y2 will be cleared. Example: $44 $53 $4C $06 $04 $28 $19 Display is filled first with 'D', 'S' followed by clearing the area from 6,4 to 40,25. M x1 y1 x2 y2 ptn Area with fill pattern A rectangular area starting from top left hand corner x1,y1 up to bottom right hand corner x2,y2 is filled with pattern ptn honoring the preset graphics mode 'V' (set / delete / inverse / replace / inverse replace). Example: $4D $05 $01 $2D $1A $07 draws a cross hatch pattern 7=45 from 5,1 to 45,26. 10 EA IC202 N x1 y1 x2 y2 Draw round corner Draw a rectangle with rounded corners from top left hand corner x1,y1 up to bottom right hand corner x2,y2 honoring preset graphic mode 'V' (set / delete / inverse). Content of box remains unchanged. Compare drawing rectangle with rounded corners 'J' . Example: $4E $06 $02 $26 $13 draws a box with rounded corners from coordinates 6,2 up to coordinates 38,19. O x1 y1 x2 y2 ptn Draw Box A rectangular box is drawn from top left hand corner x1,y1 up to bottom right hand corner x2,y2 filled with pattern ptn. Background of box will be cleared. Consult also 'R' = draw rectangular box. Example: $4F $02 $05 $12 $1E $02 draws a box from coordinates 2,5 up to coordinates 18,30 with pattern 2= 25% black. P x1 y1 Set Point A single Pixel will be placed at coordinates x1, y1 honoring preset graphic mode 'V' (set / delete / inverse). Example: $50 $0D $11places a single Pixel at coordinates 17,13. Q n1 Power Save Mode Example: $51 $01 switches our High-Level Graphic Controller into Power-Save-Mode. Handshake line RTS shows H-level which means that no more commands will be accepted. Supply voltage may be reduced now down to 2 Volts. Applying a wide pulse of >10 msec onto reset pin will awake the controller. Contents of registers remains unchanged, see table on page 3. n1: 1, High-Level Graphic Controller in Power-Save-Mode (Pin LCDON remains on VDD-level: Display is ON) n1: 2, High-Level Graphic Controller with Display are in Power-Save-Mode (Pin LCDON at GND-level: Display is OFF). R x1 y1 x2 y2 Draw rectangle A rectangle box is drawn from top left hand corner x1,y1 up to right hand bottom corner x2,y2 honoring the preset graphic mode 'V' (set / delete / inverse). Contents of rectangular box remains unchanged. Compare 'O' = draw rectangular box with rounded corners. Example: $52 $15 $08 $30 $25 draws a rectangle from coordinates 21,8 up to coordinates 48,37. S x1 y1 x2 y2 Fill area An area from top left hand corner x1,y1 up to right hand bottom corner x2,y2 will be filled with black pixels. Example: $53 $09 $05 $16 $16 fills an area from coordinates 9,5 to coordinates 22,22 with black pixels. 11 EA IC202 T L/R/O/U n1 ptn Set Text Mode Overlay combinaton mode n1 and pattern ptn sets ASCII-characters 'A' in text mode and displays a character string when setting to 'Z'. For display a character string (command 'Z') the typing-direction must be set by: L=left, R=right, O=up and U=down. Example: $54 $52 $03 $03 Initiates the overlay mode for text functions with gray characters (pattern 3 = 50% black), inverts the background and writes character string from left to right. Overlay combinaton mode n1: 1 2 3 4 5 = = = = = U set: black Pixel without regarding previous value (OR) delete: white Pixel without regarding previous parameter invert: black Pixel turns to white Pixel and vice versa (EXOR) replace: clear background and set black colored Pixel invers replace: fill background and place white colored Pixel x1 y1 data Upload picture An image will be loaded at coordinates x1,y1 daten: - 1 Byte for width of image Pixels - 1 Byte for height of image Pixels - Image datas: Qty = ((height+7) / 8) * width Bytes. 1 Byte equals 8 vertical Pixel on screen; 0=white, 1=black; LSB: top, MSB: bottom; Image builts up from left hand to right hand. The program BMP2BLV.EXE on disk EA DISKIC-1, wich is available as an accesory, generates from a monochrome Windows-Bitmap- Graphic the datas for our Image inclusive width- and height information. Example: $55 $09 $04 $0C $0C $F0 $FC $FE $FE $F7 $BF $BF $F7 $FE $FE $FC $F0 $00 $03 $07 $06 $0D $0D $0D $0D $06 $07 $03 $00 BYTE NR. 1 2 3 4 5 6 7 8 9 10 11 12 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 13 14 15 16 17 18 19 20 21 22 23 24 BYTE NR. loads beside shown image at coordinates 9,4. V n1 Set Graphics Mode Set overlay combinaton mode n1 i.e. for following graph-functions: set dot 'P', draw straight line 'G', continue drawing straight line 'W', draw rectangular box 'R', draw box with rounded corners 'N', fill area with pattern 'M'. Example: $56 $03 sets overlay mode to inverse. Beside example illustrates drawing of a rectangular box in overlay modes set, clear and invert. Overlay combinaton mode n1: 1 2 3 4 5 = = = = = 12 set: black Pixel without considering previous parameter (ODER) delete: white Pixel without regarding previous parameter invert: black Pixel turns to white Pixel and reversed (EXOR) replace: clear background and set Pixels; area with filling pattern ptn only invers replace: fill background, delete Pixels; area with fill pattern ptn only EA IC202 W x1 y1 Continue straight line Draws a straight line from last drawn line end resp. (see page 3: Last xy) to x1,y1 under considering the Graphic Mode 'V' (set / delete / inverse). Example: $47 $57 $57 $00 $16 $30 $00 $1B $0F $10 $04 Draws first a straight line from 0,0 to 16,4; then continuing from 22,27 to 48,15. X n1 I/O Read Port Reads in Port (n1: 0..7 = I/O: 0..7). When n1 = 8, all I/O 0..7 are read in binary; I/O 0: LSB, I/O 7: MSB See application on page 4. Example: $58 $02 reads in signal at I/O 2 and transmits L-level a $00 resp. H-level a $01 via RS-232 Y n1 n2 I/O Set Port Changes port value (n1: 0..7 = I/O: 0..7) into value n2 (0=L-level; 1=H-level; 2=invert port level). When n1 becomes 8, all I/O 0..7 will be transfered as binary value n2; I/O 0: LSB, I/O 7: MSB See application on page 4. Example: $59 $02 $01 sets port I/O 2 to H-level Z x1 y1 ASCII... NUL Write character string Writes a character string ASCII.... beginning from coordinate x1,y1 honoring preset mode 'T' (set / delete / inverse / replace / inverse replace / pattern / direction). Character strings must be finished with NUL ($00). Origin (0,0) starts in top left hand corner of display. Datas of coordinates refer to top left hand corner of character. Note: Font Nr. 1 has capital letters only. Example: $5A $06 $0B $54 $65 $73 $74 $00 writes character string "Test" starting at coordinate 6,11. Font: 8x16 with normal height and width. Text mode: Writing direction is from right hand, Overlay mode is Replace with Pattern Black. ? Query display type Resolution of display and way of building up an image will be displayed. High-Level-Graphics Controller IC202-PGH features a permanent resolution of 128 x 64 Pixel and organizes image building up in vertical direction. This command is available for communication of external programmes with our High-Level-Graphics Controller. IC6963-PGH is designed for displays with i.e. Toshiba controller managing variabel resolutions up to 240x128 Pixel with horizontal image building up organisation. Example: $3F This command transmits first the resolution X- (128) and Y- (64) and then the way of image building up ('V') in vertical organization via RS-232 interface. 13 EA IC202 INTEGRATED FONTS High-Level Graphic Controller EA IC202 incorporates 3 integrated character sets (Font1: 4x6 Pixel; Font2: 6x8 Pixel and Font 3 8x16 Pixel). Each character set can be used in 1-, 2-, 3- or 4-times height. Independant of height the width may be doubled, tripled or quadrupled. 4-16 self defined characters will be stored as long as the supply voltage is switched on, (see command 'E'). Font 1 Each individual character can be placed exactly by pixel. You may mix text with graphics in any way at your desire. Also characters with different sizes can be used in common. Font 2 Font 3 14 EA IC202 EA GE120-5NV24 GRAPHIC UNIT 120x32, 2 FONTS, RS-232 Dimensions 68 x 39 x 11mm Display 120x32, Supertwist, LED-Backlight Supply Voltage +5V / 100mA Terminals 10 Pins, 2,54mm Grid Operating Temperature 0 ... +70C Storage Temperature -20 ... +70C * * * * * 120x32 Pixel Supertwist-LCD with green color LED-Backlight 2 FONTS from 3,2mm (5x30 Characters) to 4,6mm (4x20) up to 18,2 mm (1x5) DRAW STRAIGHT LINES, I NVERT OR DELTE AREAS SUPPLY VOLTAGE: +5V / typ. 100mA BAUD RATES 1200,2400,4800,9600,19200BD Ordering Information Graphicunit 120x64 withLED-Backlight Cable with 9-pin D-SUB plug (female) EA GE128-6N3V24 EA GE120-5NV24 EA KV24-9B GRAPHIC UNIT 128x64, 3 FONTS, RS-232C Graphic Device EA GE128-6N3V24 is based on High-Level-Graphic Controller EA IC202-PGH. This Graphic Device operates either on real RS-232C levels (10Volts) or with CMOS- levels. Dimensions 84 x 60 x 25mm Display 128x64, Supertwist, LED-Backlight Supply Voltage +5V / 150mA Terminals 10 Pins, 2,54mm Grid Operating Temperature 0 ... +70C Storage Temperature -20 ... +70C * * * * * * 128x64 Pixel Supertwist-LCD with green color LED-Backlight 3 FONTS: 2,6mm (10x32 Characters); 6,2mm (4x16) and 25 mm (1x5) DRAW STRAIGHT LINES, I NVERT OR DELETE AREAS AUTOMATIC BARGRAPH SCALING FUNCTION SUPPLY VOLTAGE: +5V / typ. 150mA Ordering Information BAUD RATES 1200,2400,4800,9600,19200BD Graphicunit 128x64 with LED-Backlight Cable with 9-pin D-SUB plug (female) EA GE128-7KV24 EA GE128-6N3V24 EA KV24-9B GRAPHIC UNIT 128x128, 3 FONTS, RS-232 Dimensions 85 x 100 x 25mm Display 128x128, Supertwist, LED-Backlight Supply Voltage +5V / 500mA Terminals 10 Pins, 2,54mm Grid Operating Temperature 0 ... +50C Storage Temperature -20 ... +70C * 128x128 Pixel Supertwist-LCD with green color LED-Backlight * 3 FONTS from 2,2mm (21x32 Characters) to 5,2mm (8x16) up to 21 mm (2x5) * DRAW STRAIGHT LINES, I NVERT OR DELETE AREAS * AUTOMATIC BARGRAPH SCALING FUNCTION * SUPPLY VOLTAGE: +5V / typ. 500mA * BAUD RATES 1200,2400,4800,9600,19200BD Ordering Information Graphicunit 128x128 with LED-Backlight Cable with 9-pin D-SUB plug (female) EA GE128-7KV24 EA KV24-9B More Display Sizes are available: i.e. 240x64 and 240x128 (as of Dec 97). 15 EA IC202 BAUD RATES Various baud rates can be selected depending on System Clock (Quartz, Ceramic Resonator) for RS-232 data transfer. Its done by connecting pins BAUD0..2 and QTYP to VDD or to GNDPegel. Programmable baud rates are shown in this table (0: GND, 1: VDD). Baud Rates Baud 2 Baud 1 Baud 0 0 0 0 0 0 0 QTYP = 1 QTYP = 0 11,0592 MHz 3,6864 MHz 7,3728 MHz 14,7456 MHz 0 1200 1 2400 300 600 1200 600 1200 2400 1 0 1 1 4800 1200 2400 4800 9600 2400 4800 1 0 9600 0 19200 4800 9600 19200 1 1 0 1 38400 9600 19200 38400 1 0 57600 14400 28800 57600 1 1 1 115200 28800 57600 115200 ADRESSING Adressing Up to 4 High-Level Graphics Controller are adressable on a single serial port. The individual adress is set on pin ADR0 and on pin ADR1. Caution! Simple parallel connection of handshake lines RTS respectively transmitter lines TxD results in interfering output signals, therefore you have to use an additional logic circuit to prevent data crash. We recommand an OR-logic for RTS resp. AND-logic for TxD. A D R 1 A D R 0 Adress 0 0 0 0 1 1 1 0 2 1 1 3 DIMENSIONS Housing: PLCC44J; all sizes in Inches (mm) ATTENTION handling precautions! LOCHHAMER SCHLAG 17 * D- 82166 GRAFELFING PHONE +49-89-8 54 19 91 * FAX +49-89 -8 54 17 21