System i/o addresses – Gateway 6400 User Manual

Page 134

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System I/O addresses

125

System I/O addresses

The following table shows the location in I/O space of all directly
I/O-accessible registers.

Address

Resource

0000h - 000Fh

DMA Controller 1

0010h - 001Fh

DMA Controller 1

0020h - 0021h

Interrupt Controller 1

0022h - 0023h

0024h - 0025h

Interrupt Controller 1

0026h - 0027h

0028h - 0029h

Interrupt Controller 1

002Ah - 002Bh

002Ch - 002Dh

Interrupt Controller 1

002Eh - 002Fh

Super I/O Index and Data Ports

0030h - 0031h

Interrupt Controller 1

0032h - 0033h

0034h - 0035h

Interrupt Controller 1

0036h - 0037h

0038h - 0039h

Interrupt Controller 1

003Ah - 003Bh

003Ch - 003Dh

Interrupt Controller 1

003Eh - 003Fh

0040h - 0043h

Programmable Timers

0044h - 004Fh

0050h - 0053h

Programmable Timers

0054h - 005Fh

05032.book Page 125 Monday, July 10, 2000 11:43 AM

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