The PC I/O port map is given below.
ADDRESS | Device | ADDRESS | DEVICE |
PC reserved | XT Hard Disk | ||
Game/control | Parallel Printer | ||
XT Expansion Unit | SDLC | ||
Bus Mouse/Alt. Bus Mouse | SDLC | ||
Parallel Printer | MDA/Parallel Printer | ||
EGA | EGA | ||
AT GPIB | CGA | ||
Serial Port | Serial Port | ||
Serial Port | Floppy Disk | ||
Prototype Card | Serial Port |
2.3Jumper Settings
2.3.1JP1 : D/A Internal Reference Voltage Selection
Reference Voltage
1
2
3
Reference Voltage
1
2
3
Select
Select
JP1 is valid only if JP2 is set to D/A internal reference voltage