BEGV643A Display Embedded System Microprocessor T/P Connector RS422 LCD Controller EEPROM RS232 Connector Features High performance, Low power AVR 8-bit microprocessor Built-in 64KB Flash memory / 4KB SRAM On board updateable 128KB EEPROM One isolated RS485 / 422 / 232, 1 x RS232 High speed SPI and I²C Lower voltage operation to 3.3V Built-in 4-wired resistive touch panel Current consumption 180mA 320 x 240 monochrome STN LCD On-chip power-on reset(POR) and programmable watchdog reset Comprehensive set of development tools and application notes for self programming RS485 / 422 / 232 driver, SPI driver, I²C driver, Touch panel driver, LCM driver and Utility are supported Dimension (W x H x D): 160 x 109 x 16.5mm Hardware Specifications RS232 / 422 / 485 Port Processor High performance,Low power AVR 8-bit microprocessor Memory 64KB In-system programmable flash 2KB Internal EEPROM 4KB Internal SRAM 64KB x 2 External I²C CMOS EEPROM (option: 64KBx3) Display Interface Support 8-bit single scan with resolution 320 x 240 Monochrome STN LCD, edge LED white backlight only Serial Port Support dual serial port, one is three-wired RS232, another is shared with RS422 and RS485 port Support one port shard between with RS232 isolated RS422 and isolated RS485 Serial Peripheral Interface One full-duplex, three-wired synchronous data transfer SPI port One two-wired serial interface(I²C) to 250KHz data transfer speed Touch Panel Interface Support four-wired resisitive touch panel interface Software Utilities Support RS232 / 422 / 485 driver, SPI driver I²C driver, Touch panel and LCM driver DC Requirement DC3.3V~5.5V BOLYMIN, INC. VER:03 1 BEGV643A Accessories BEGV643A Embedded LCD module User Manual Software Utility Disc ISP Cable (option) BEGV643A BLOCK DIAGRAM HS-SPI I²C AVR 8-bit Microprocessor RS232 64KB ISP Flash 320 x 240 STN 2KB Internal EEPROM RS232 4KB Internal SRAM isolated RS-485 Touch Panel isolated RS-422 I²C 64KB x 3 EEPROM (Optional) IO Pin Mapping Table PIN NO. Signal PIN NO. Signal PIN NO. Signal 1 GND 12 422RP 23 RX1 2 EEPSDA 13 MOSI 24 GND2 3 VDD 14 422RN 25 TX1 4 EEPSCL 15 MISO 26 GND2 5 Vadj 16 422TP/485P 27 SDA 6 EEPWP 17 28 EN485 7 Vout 18 29 SCL 8 IOB 19 RX0 30 A 9 /Reset 20 VDD2 31 IOA 10 NC 21 TX0 32 K 11 /SS 22 VDD2 SCK 422TN/485N Order Information Parts NO. Description RS232-A RS232-B BEGV643A Dual RS232 ☆ ☆ BEGV643A1 One RS232 ☆ BEGV643A2 One RS232/One RS422 ☆ BEGV643A3 One RS232/One RS485 ☆ RS422 RS485 ☆ ☆ Display: FSTN/Gray LCD,LED/White Backlight(Default) BOLYMIN, INC. www.bolymin.com.tw Revised Date:14-SEP-2009 VER:03 2