User manual

77 ASMB-781 User Manual
Appendix B I/O Pin Assignments
B.18 Front Panel LAN LED Connector (LAN_LED1/2)
B.19 SPI_CN1: SPI flash card pin connector
B.20 System I/O Ports
Table B.19: LAN LED Connector (LAN_LED1/2)
Pin Signal Pin Signal
1 LAN1/3_LED0_ACT 2 LAN2/4_LED1_ACT
3 VCC3_LAN1LED 4 VCC3_LAN2LED
5 LAN1/3_LED1_1000M 6 LAN2/4_LED2_1000
7 LAN1/3_LED2_100M 8 LAN2/4_LED0_100
9 VCC3 10 N/C
Table B.20: SPI_CN1:SPI fresh card pin connector
Pin Signal Pin Signal
1 +3VSB 2 GND
3 SPI_CS# 4 SPI_CLK
5 SPI_MISO 6 SPI_MOSI
7N/A 8NC
Table B.21: System I/O ports
Addr. range (Hex) Device
000-01F DMA controller
020-021 Interrupt controller 1, master
022-023 Chipset address
040-05F 8254 timer
060-06F 8042 (keyboard controller)
070-07F Real-time clock, non-maskable interrupt (NMI) mask
080-09F DMA page register
0A0-0BF Interrupt controller 2
0C0-0DF DMA controller
0F0 Clear math co-processor
0F1 Reset math co-processor
0F8-0FF Math co-processor
1F0-1F8 Fixed disk
290-297 On-board hardware monitor
2F8-2FF Serial port 2
300-31F Prototype card
360-36F Reserved