B&B Electronics UNO-2170 user manual Appendix a System Settings and Pin Assignments

Appendix A System Settings and Pin Assignments

A.1SystemI/OAddressandInterruptAssignment

Table A.1: UNO-2170 System I/O Ports

Address Range Device

000-01F	DMA controller (slave)
020-03F	Interrupt controller 1, (master)
040-05F	8254 timer/counter
060-06F	8042 (keyboard controller)
070-07F	Real-time clock, non-mask interrupt (NMI)
080-09F	DMA page register,
0A0-0BF	Interrupt controller 2 (slave)
0C0-0DF	DMA controller (master)
0F0	Clear math co-processor
0F1	Reset math co-processor
0F8-0FF	Math co-processor
1D0	Vector address; for COM port share IRQ
1E0	Battery backup resource
11E	Battery backup resource
1F0-1F8	1st fixed disk
200-207	Game I/O
278-27F	Reserved
2E8-2EF	Serial port 4
2F8-2FF	Serial port 2
300-31F	Ethernet**
360-36F	LPT2
378-37F	Parallel printer port 1 (LPT1)
380-38F	SDLC, bisynchronous 2
3A0-3AF	Bisynchronous 1
3B0-3BF	Monochrome display
3C0-3CF	Reserved
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