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APPENDIX

IB898 User’s Manual

Appendix

A. I/O Port Address Map

Each peripheral device in the system is assigned a set of I/O port

addresses which also becomes the identity of the device. The following

table lists the I/O port addresses used.

Address

Device Description

0000h-006Fh

PCI bus

0020h-0021h

Programmable interrupt controller

0024h-0025h

Programmable interrupt controller

0028h-0029h

Programmable interrupt controller

002Ch-002Dh

Programmable interrupt controller

0030h-0031h

Programmable interrupt controller

0034h-0035h

Programmable interrupt controller

0038h-0039h

Programmable interrupt controller

003Ch-003Dh

Programmable interrupt controller

0040h-0043h

System timer

0050h-0053h

System timer

0070h-0077h

System CMOS/real time clock

0078h-0CF7h

PCI bus

00A0h-00A1h

Programmable interrupt controller

00A4h-00A5h

Programmable interrupt controller

00A8h-00A9h

Programmable interrupt controller

00ACh-00ADh

Programmable interrupt controller

00B0h-00B1h

Programmable interrupt controller

00B4h-00B5h

Programmable interrupt controller

00B8h-00B9h

Programmable interrupt controller

00BCh-00BDh

Programmable interrupt controller

03B0h-03BBh

Intel(R) Atom(TM) Processor E3800

Series/Intel(R) Celeron(R) Processor

N2920/J1900

03C0h-03DFh

Intel(R) Atom(TM) Processor E3800

Series/Intel(R) Celeron(R) Processor

N2920/J1900

03E8h-03EFh

Nuvoton Communications Port (COM2)

03F8h-03FFh

Nuvoton Communications Port (COM1)

04D0h-04D1h

Programmable interrupt controller

0D00h-FFFFh

PCI bus

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 57 58

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