3-14 Software Functional Overview
Hex Address
Device
330-333
MIDI
370-371
Sound Chip Control Port
378-37A
Parallel Port
388-38B
FM Synthesizer
398-399
Super I/O chip
3B0-3DF
Video Controller
3E0-3E1
PCMCIA Controller
3E8-3EF
Fax/Modem
3F0-3F7
Floppy Disk Controller
3F8-3FF
Serial Port 1
530-537
Windows Sound System
778-77B
ECP Port
A79
PnP configuration –Write data port
CF8-CFC
PCI BUS configuration register
ISA DMA Map
DMA channel
Device
DMA 0
FIR
DMA 1
ECP
DMA 2
Floppy Disk
DMA 3
Audio
DMA 4
[Cascade]
DMA 5
Unused
DMA 6
Unused
DMA 7
Unused
Memory Map
Address Range
Length
Description
00000-9F7FFh
638KB
Base Memory
9F800-9FFFFh
2 KB
Extended BIOS Data Area
A0000-BFFFFh
128 KB
Video Memory
C0000-C9FFFh
40 KB
Video ROM
CA000-DFFFFh
88 KB
Unused
E0000-FFFFFh
128 KB
System ROM BIOS