Table 10. I/O Map (continued)

Address (hex)

Size

0377, bits 6:0

7 bits

0378 - 037F

8 bytes

0388- 038B

6 bytes

03B0 – 03BB

4 bytes

03C0 – 03DF

2 bytes

03CC

1 byte

03CE – 03CF

2 bytes

03D4 – 03D5

2 bytes

03DA

1 byte

03E8 – 03EF

8 bytes

03F0 - 03F5

6 bytes

03F6

1 byte

03F8 - 03FF

8 bytes

One of these ranges:

8 bytes

0530 – 0537

 

0E80 – 0E87

 

0F40 – 0F47

 

0800 – 087F

 

9000 – 9FFF

 

LPTn + 400h

8 bytes

0CF8 - 0CFB*

4 bytes

0CF9**

1 byte

0CFC - 0CFF

4 bytes

EF00 – EF3F

64 bytes

FFA0 - FFA7

8 bytes

FFA8 - FFAF

8 bytes

32contiguous bytes starting on a 32-byte divisible boundary

64contiguous bytes starting on a 64-byte divisible boundary

*Dword access only

**Byte access only

Technical Reference

Description

Secondary IDE channel status port

LPT 1

AdLib(FM synthesizer)

Intel 82810 – DC100 Graphics Controller Hub (GCH)

Graphics Controller Hub (GCH)

Video (VGA)

Video (VGA)

Video (VGA)

Video (VGA)

COM3

Diskette channel 1

Primary IDE channel command port

COM1

Windows Sound System

Motherboard resources

Intel 82810AA PCI bridge

ECP port, LPTn base address + 400h

PCI configuration address register

Turbo and reset control register

PCI configuration data register

Windows Sound System

Primary bus master IDE registers

Secondary bus master IDE registers

Intel 82559 LAN controller

Onboard audio controller

47