ChipsWork Microelectronics Corp.
  5F-3, No.432, Sec.1, Keelung Rd.,
  Taipei, Taiwan, R.O.C.
  Phone: +886-2-77181919
  service@chipswork.com.tw
ChipsWork
UART Key/Display Bridge
This Key/Display Bridge IC connected to host chip through UART. It supports up to 48 keys, 48 LED lamps, three special output ports and standard 8bit LCM interface.

2-wire UART interface supported to input LED/LCM display, output key press and LCM status.
  

UART Key/Display Bridge

    Full-duplex UART interface

    Support UART of 1 start, 8 data, 1 stop

    UART baud rate up to 38400

    Support up to 48 keys with de-bounce

    Support up to 48 LED lamps

    Only one PNP transistor and one resistor to drive 8 LED lamps

    Three special output ports support

    Standrad 8bit LCM interface support

    3.3V/5V version

    Low profile 44-lead QFP package



Development Board



ChipsWork ASSP

Microcontroller
Licensed from Japan S-Company, 10-bit SAR ADC embedded and Databank series.
 

ARM7 Platform
ARM7TDMI/ARM720T daughter board,  ALTERA Stratix II FPGA for user logic.
 

LED Driver
Simple fading and constant-current white-light LED Driver.
 

UART Key/Display Bridge
UART interface to host. Auto key scan, LED display, LCM read/write.
 

LVDS Receiver
3:21 LVDS data channel at throughput rate up to 223bps, 8/16-bit logic data bus.