1St Mb Memory Address Map; I/O Map - Xycom SBC-370 User Manual

1ST MB MEMORY ADDRESS MAP

The default setting is highlighted.
Memory Address
00000-9FFFF
A0000-BFFFF
C0000-CBFFF
D6000-D7FFF
E0000-FFFFF
1000000-

I/O MAP

I/O Address Range
000-01F
020-021
040-05F
060-06F
070-07F
080-09F
0A0-0BF
0C0-0DF
0F0
0F1
0F8-0FF
1F0-1F8
200-207
278-27F
2E8-2EF
2F8-2FF
300-31F
360-36F
378-37F
380-38F
3A0-3AF
25
Description
System Memory
VGA Buffer
VGA BIOS
DOC 2000
System BIOS
Extend BIOS
Description
DMA Controller #1
Interrupt Controller #1, Master
8254 Timer
8042 (Keyboard Controller)
Real time Clock, NMI
(non-maskable interrupt) Mask
DMA Page Register
Interrupt Controller #2
DMA Controller #2
Clear Math Coprocessor Busy
Reset Math Coprocessor
Math Coprocessor
Fixed Disk
Game I/O
Parallel Printer Port 2 (LPT3)
Serial Port 4
Serial Port 2
Prototype Card
Reserved
Parallel Printer Port 1 (LPT2)
SDLC, Bisynchronous 2
Bisynchronous 1
Board Configuration