Appendix A System Settings and Pin Assignments
A.1SystemI/OAddressandInterruptAssignment
Table A.1: UNO-2170 System I/O Ports
Address Range Device
DMA controller (slave) | |
Interrupt controller 1, (master) | |
8254 timer/counter | |
8042 (keyboard controller) | |
DMA page register, | |
Interrupt controller 2 (slave) | |
DMA controller (master) | |
0F0 | Clear math |
0F1 | Reset math |
Math | |
1D0 | Vector address; for COM port share IRQ |
1E0 | Battery backup resource |
11E | Battery backup resource |
1st fixed disk | |
Game I/O | |
Reserved | |
Serial port 4 | |
Serial port 2 | |
Ethernet** | |
LPT2 | |
Parallel printer port 1 (LPT1) | |
SDLC, bisynchronous 2 | |
Bisynchronous 1 | |
Monochrome display | |
Reserved | |
22 |