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) O * VERSION FOR VERTICAL DISPLAY MOUNTING (90 ROTATED) * 40-PIN DIL PACKAGE VERSION ORDER DESIGNATION HIGH-LEVEL GRAPH CONTROLLER 128x64 FOR HD61202 EA IC202-PGH SUITABLE GRAPHICS DISPLAY INCL. HD61202, 128x64 EA P128-6N3LED CERAMIC RESONATOR SMD 7,37MHz, 3 PINS INCL. CAPs EA KERS7M37-C GRAPHICS MODULE WITH IC202-PGH AND RS-232C EA GE128-6N3V24 LOCHHAMER SCHLAG 17 D- 82166 GRFELFING PHONE +49-89-8541991 FAX +49-89-8541721E A I C202 GE NERAL 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 reset- capacitor. 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 displa. 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