111 ASMB-785 User Manual
Appendix B I/O Pin Assignments
B.19 GPIO Connector (GPIO1)
B.20 SMBUS1: Connector of SMBUS from PCH
B.21 System I/O Ports
Table B.21: GPIO Connector (GPIO1)
Pin Definition Pin Definition
1 SIO_GPIO0 2 SIO_GPIO4
3 SIO_GPIO1 4 SIO_GPIO5
5 SIO_GPIO2 6 SIO_GPIO6
7 SIO_GPIO3 8 SIO_GPIO7
9 VCC_GPIO0 10 GND
Table B.22: SMBUS Connector
Pin Signal
1+5V
2 Clock
3 Data
4 GND
Table B.23: System I/O ports
Addr. range (Hex) Device
000-01F DMA controller
020-021 Interrupt controller 1, programmable interrupt controller
022-03F Motherboard resources
040-043 System timer
060-060 Standard PS/2 Keyboard
064-064 Standard PS/2 Keyboard
070-077 Real-time clock, non-maskable interrupt (NMI) mask
081-091 DMA controller
0A0-0A1 Interrupt controller 2, programmable interrupt controller
0C0-0DF DMA controller
0F0-0F0 Numeric data processor
A35-A36 On-board hardware monitor
2F8-2FF Serial port 2
778-77F Printer port (LPT1)
3B0-3BB Intel HD Graphics
3C0-3DF Intel HD Graphics
3F8-3FF Serial port 1
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