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Appendix b. system address maps – IBM 6288 User Manual

Page 45

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Appendix B. System address maps

Figure 34 (Page 2 of 3). I/O address map

Address (Hex)

Size

Description

0080

1 byte

POST checkpoint register during POST only

008F

1 byte

Refresh page register

0080–008F

16 bytes

ICH1, DMA page registers

0090–0091

15 bytes

General I/O locations — available to PCI bus

0092

1 byte

PS/2 keyboard controller registers

0093–009F

15 bytes

General I/O locations

00A0–00A1

2 bytes

Interrupt controller 2

00A2–00BF

30 bytes

APM control

00C0–00DF

31 bytes

DMA 2

00E0–00EF

16 bytes

General I/O locations — available to PCI bus

00F0

1 byte

BX, Coprocessor Error Register

00F1–016F

127 bytes

General I/O locations — available to PCI bus

0170–0177

8 bytes

Secondary IDE channel

01F0–01F7

8 bytes

Primary IDE channel

0200–0207

8 bytes

Available

0220–0227

8 bytes

SMC 37C673, Serial port 3 or 4

0228–0277

80 bytes

General I/O locations — available to PCI bus

0278–027F

8 bytes

SMC 27C673, LPT3

0280–02E7

102 bytes

Available

02E8–02EF

8 bytes

SMC PC37C673, Serial port 3 or 4

02F8–02FF

8 bytes

COM2

0338–033F

8 bytes

SMC PC37C673, Serial port 3 or 4

0340–036F

48 bytes

Available

0372–0375

4 bytes

Available

0376–0377

2 bytes

IDE channel 1 command

0378–037F

8 bytes

LPT2

0380–03B3

52 bytes

Available

03B4–03B7

4 bytes

Video

03BA

1 byte

Video

03BC–03BE

16 bytes

LPT1

03C0–03CF

16 bytes

Video

03D4–03D7

4 bytes

Video

03DA

1 byte

Video

03D0–03DF

11 bytes

Available

03E0–03E7

8 bytes

Available

03E8–03EF

8 bytes

COM3 or COM4

03F0–03F5

6 bytes

Diskette channel 1

03F6

1 byte

Primary IDE channel command port

03F7 (Write)

1 byte

Diskette channel 1 command

03F7, bit 7

1 bit

Diskette disk change channel

03F7, bits 6:0

7 bits

Primary IDE channel status port

03F8–03FF

8 bytes

COM1

0400–047F

128 bytes

Available

Appendix B. System address maps

37

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