Avalue EMS-BYT - Manual (Page 17)

Quick Reference Guide
EMS-BYT Series Quick Reference Guide 17
2.1.4.1 GPIO+SMBUS
Signal PIN PIN Signal
25 13
24 12
23 11
22 10
SMBUS_DATA 21 9
SMBUS_CLK 20 8 GND
GPI-D5 19 7 5V
GPI-D4 18 6 GPO-D5
GPI-D3 17 5 GPO-D4
GPI-D2 16 4 GPO-D3
GPI-D1 15 3 GPO-D2
GPI-D0 14 2 GPO-D1
1 GPO-D0
2.1.4.2 COM2
Pin RS-232 RS-485 RS-422
1 DCD TXD-/RXD- TXD-
2 RXD TXD+/RXD+ TXD+
3 TXD RXD+
4 DTR RXD-
5 GND GND GND
6 DSR
7 RTS
8 CTS
9 RI