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TypeF DMA Transfers #1(#2)" - часть 2


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Адреса

Размер

Назначение

02F8 - 02FF

8 bytes

COM2

0300 - 0301

2 bytes

MPU-401 (MIDI)

0330 - 0331

2 bytes

MPU-401 (MIDI)

0332 - 0333

2 bytes

MPU-401 (MIDI)

0334 - 0335

2 bytes

MPU-401 (MIDI)

0376

1 byte

Secondary IDE channel command port

0377

1 byte

Floppy channel 2 command

0377

bit 7, 1 bit

Floppy disk change, channel 2

0377

bits 0-6, 7 bits

Secondary IDE channel status port

0378 - 037F

8 bytes

LPT1

0388 - 038D

6 bytes

AdLib (FM synthesizer)

03B4 - 03B5

2 bytes

Video (VGA)

03BA

1 byte

Video (VGA)

03BC - 03BF

4 bytes

LPT3

03C0 - 03CA

11 bytes

Video (VGA)

03CC

1 byte

Video (VGA)

03CE - 03CF

2 bytes

Video (VGA)

03D4 - 03D5

2 bytes

Video (VGA)

03DA

1 byte

Video (VGA)

03E8 - 03EF

8 bytes

COM3

03F0 - 03F5

6 bytes

Floppy Channel 1

Адреса

Размер

Назначение

03F6

1 byte

Primary IDE channel command port

03F7 (Write)

1 byte

Floppy channel 1 command

03F7

bit 7, 1 bit

Floppy disk change channel 1

03F7

bits 0-6, 7 bits

Primary IDE channel status port

03F8 - 03FF

8 bytes

COM1

04D0 - 04D1

2 bytes

Edge/level triggered PIC

0530 - 0537

8 bytes

Windows Sound System

0604 - 060B

8 bytes

Windows Sound System

LPTn + 400h

8 bytes

ECP port, LPTn base address + 400h

0CF8 - 0CFB (*)

4 bytes

PCI configuration address register

0CF9 (**)

1 byte

Turbo and reset control register

0CFC - 0CFF

4 bytes

PCI configuration data register

0E80 - 0E87

8 bytes

Windows Sound System

0F40 - 0F47

8 bytes

Windows Sound System

0FF0 - 0FF7

8 bytes

CS4236B audio control

FF00 - FF07

8 bytes

IDE bus master register

FFA0 - FFA7

8 bytes

Primary bus master IDE registers

FFA8 - FFAF

8 bytes

Secondary bus master IDE registers

007C

bits 4-5, 2 bits

Chassis fan RPM sense selection

·         *  DWORD access only

·         ** Byte access only

7.6. Audio




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