B.1
PC I/O Port Address Map
Range (hex)
000-1FF
200
201
202-277
278-27F
280-2F7
2F8-2FF
300-377
3713-37F
380-3AF
3B0-3BF
3C0-3CF
3D0-3DF
3E0-3EF
3F0-3F7
3F8-3FF
PCL-730User Manual
Function
Base System
Reserved
Came Control
Reserved
Second Printer Port
Reserved
COM 2
Reserved
First Printer Port
Reserved
Mono Display/Print Adapter
Reserved
Color/Graphics
Reserved
Floppy Disk Drive
COM 1
20