Serial Port Interface; 4.11.1 Serial Ports Irq Selection; Keyboard And Ps/2 Mouse Connectors - AXIOMTEK SBC8168 User Manual

SBC8168 Socket 370 All-in-One CPU Card Series User's Manual
4.11

Serial Port Interface

The serial interface onboard SBC8168 consists of COM1 port
(CN8) supports RS-232 and COM2 (CN9) provide RS-
232/422/485 connectivity.

4.11.1 Serial Ports IRQ Selection

SBC8168 uses a 10-pin connector for COM2 (CN9) and COM1
(CN8) with onboard Ethernet CPU card. Interrupt Requests on
COM1 and COM2 are selected via IRQ4 and IRQ3 respectively.
Additionally, both ports can be enabled or disabled via BIOS
setting. The RS-232 pin assignments for COM1 and COM2
along with the RS-485 pin assignments for COM2 are in
Appendix B.
4.12 Keyboard and PS/2 Mouse
Connectors
The SBC8168 provides a PS/2 keyboard (CN18) and PS/2
mouse (CN17) interface with a 5-pin connector. CN19 is a DIN
connector for PS/2 keyboard connection.
CN17/18
Clock 1
Data 2
No Connection 3
GND 4
Power 5
20
CN19
Mouse Clock Keyboard Clock
6 5
4
3
VCC
Mouse Data
Keyboard Data
2
1
Hardware Description
GND