Table of Contents
Revision History ................................................................................ ii
......................................................................... 4
General Information ............................................................... 4
Related Documents ................................................................ 4
....................................................... 5
VAR-EXT-CB105 Layout & Connectors ................................. 5
IO & BUS Extenders (Section A) .................................................... 5
RS-232/3.3V Level UART (Section B) ........................................... 6
RS485 Level UART (Section B) ..................................................... 6
CAN BUS (Section C)* ................................................................... 6
1.8v -> 3.3v level Translation (Section D)....................................... 6
JTAG Adaptor (Section E) .............................................................. 6
......................................................... 7
Extension Headers ................................................................. 7
– LCD Interface .......................................... 7
– CAM & I2C .............................................. 8
– Local Bus ................................................ 9
– SPI, MMC & ADC .................................. 10
UARTs ................................................................................. 11
RS232 connectors assignment ..................................................... 11
RS232 connectors pin out ............................................................ 11
CAN BUS - J1 ...................................................................... 12
General Purpose Level Shifter ............................................. 12
JTAG Connectors ................................................................. 12
JTAG Out (J20) ............................................................................. 12
JTAG In(J19) ................................................................................ 12
.................................................. 14
.................................................................. 15
............................................................. 16