System I/O Address Map
Hex address
000-01F
020-03F
368-368
378 - 37F
380-38F
390 - 393
3A0-3AF
380-38F
3C0-3CF
3D0-3DF
3F0-3F7
3F8-3FF
A-14 Specifications
Assigned device
DMA controller 1,8237
Interrupt controller 1,8259
UMC 82C481 chip set configuration register
PC network (high address)
Parallel printer port 1
SDLC, bisynchronous 1
Cluster
SDLC, bisynchronous 2
Monochrome display and printer port
Enhanced graphics adapter
Color graphics monitor adapter
Diskette drive controller
Serial port 1