Advantech PPC-A84/A120-X5X user manual External FDD and HDD Power Connector, System I/O ports

C.17 External FDD and HDD Power Connector

3

4

1

2

Table C-17: External FDD and HDD Power Connector

Pin Signal

1+12 V

2GND

3GND

4VCC

C.18 System I/O ports

Table C-18: 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
200-207	Game I/O
278-27F	Parallel printer port 2 (LPT 3)
2F8-2FF	Serial port 2
300-31F	Prototype card
360-36F	Reserved
378-37F	Parallel printer port 1 (LPT 2)
380-38F	SDLC, bisynchronous 2

Appendix C Pin Assignments 145