
User Manual version 2207
C: System I/O Ports |
|
Address range (Hex) | Device |
DMA controller | |
Interrupt controller 1, master | |
Chipset address | |
8254 timer | |
8024 keyboard controller | |
Real time clock, | |
| interrupt mask (NMI) |
DMA page register | |
Interrupt controller 2 | |
DMA controller | |
0F0 | Clear math |
0F1 | Reset math |
Math | |
Fixed disk | |
Game Port (not used) | |
443 | Watchdog timer |
143 | Watchdog timer |
208 | DIO port |
2E8 | Serial port #4 |
Serial port #2 | |
Prototype card (not used) | |
Reserved | |
Parallel printer port 1 (LPT1) | |
SDLC, bisynchronous 2 (not used) | |
Bisynchronous 1 (not used) | |
Monochrome display and printer | |
| adapter (LPT1) (not used) |
Reserved | |
Color/graphics monitor adapter | |
3E8 | Serial port #3 |
Diskette controller | |
Serial port #1 |
APOLLO 120/150 III |