ECB-865

I/O – Map

Certain I/O addresses are subject to change during boot as PnP managers may relocate devices or functions. The addresses shown in the table are typical locations.

 

 

 

 

 

 

I/O Port

Description

Note

 

 

 

 

 

 

 

0000h-000Fh

Direct memory access controller

 

 

 

0010h-001Fh

Motherboard resources

 

 

 

0020h-0021h

Programmable interrupt controller

 

 

 

002Eh-002Fh

Motherboard resources

 

 

 

0040h-0043h

System timer

 

 

 

0044h-005Fh

Motherboard resources

 

 

 

0060h-0060h

Standard 101/102-Key or Microsoft Natural Keyboard

 

 

 

0061h-0061h

System speaker

 

 

 

0062h-0063h

Motherboard resources

 

 

 

0064h-0064h

Standard 101/102-Key or Microsoft Natural Keyboard

 

 

 

0065h-006Fh

Motherboard resources

 

 

 

0070h-0071h

System CMOS/real time clock

 

 

 

0072h-007Fh

Motherboard resources

 

 

 

0080h-0080h

Motherboard resources

 

 

 

0081h-0083h

Direct memory access controller

 

 

 

0084h-0086h

Motherboard resources

 

 

 

0087h-0087h

Direct memory access controller

 

 

 

0088h-0088h

Motherboard resources

 

 

 

0089h-008Bh

Direct memory access controller

 

 

 

008Ch-008Eh

Motherboard resources

 

 

 

008Fh-008Fh

Direct memory access controller

 

 

 

0094h-009Fh

Motherboard resources

 

 

 

00A0h-00A1h

Programmable interrupt controller

 

 

 

00A2h-00BFh

Motherboard resources

 

 

 

00C0h-00DFh

Direct memory access controller

 

 

 

00C0h-00DEh

Direct memory access controller

 

 

 

00E0h-00EFh

Motherboard resources

 

 

 

00F0h-00FFh

Numeric data processor

 

 

 

0170h-0177h

Secondary Ultra ATA Controller

 

 

 

0170h-0177h

Intel(R) 82801BA Ultra ATA Storage Controller - 244B

 

 

 

01F0h-01F7h

Primary Ultra ATA Controller

 

 

 

01F0h-01F7h

Intel(R) 82801BA Ultra ATA Storage Controller - 244B

 

 

 

02F8h-02FFh

Communications Port (COM2)

 

 

 

0376h-0376h

Secondary Ultra ATA Controller

 

 

 

0376h-0376h

Intel(R) 82801BA Ultra ATA Storage Controller - 244B

 

 

 

0378h-037Fh

Printer Port (LPT1)

 

 

 

03B0h-03BBh

Intel(R) 82815 Graphics Controller

 

 

 

 

 

 

 

ECB-865 User’s Manual 91

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Image 101
Intel ECB-865 user manual Map, Port Description