32581CCore Logic Module - Register Summary

Table 6-28. ISA Legacy I/O Register Summary

I/O Port

Type

Name

 

Reference

 

 

 

 

 

DMA Channel Control Registers (Table 6-43)

 

 

 

 

 

 

 

000h

R/W

DMA Channel 0 Address Register

 

Page 295

 

 

 

 

 

001h

R/W

DMA Channel 0 Transfer Count Register

 

Page 295

 

 

 

 

 

002h

R/W

DMA Channel 1 Address Register

 

Page 295

 

 

 

 

 

003h

R/W

DMA Channel 1 Transfer Count Register

 

Page 295

 

 

 

 

 

004h

R/W

DMA Channel 2 Address Register

 

Page 295

 

 

 

 

 

005h

R/W

DMA Channel 2 Transfer Count Register

 

Page 295

 

 

 

 

 

006h

R/W

DMA Channel 3 Address Register

 

Page 295

 

 

 

 

 

007h

R/W

DMA Channel 3 Transfer Count Register

 

Page 295

 

 

 

 

 

008h

Read

DMA Status Register, Channels 3:0

 

Page 295

 

 

 

 

 

 

Write

DMA Command Register, Channels 3:0

 

Page 296

 

 

 

 

 

009h

WO

Software DMA Request Register, Channels 3:0

 

Page 296

 

 

 

 

 

00Ah

W

DMA Channel Mask Register, Channels 3:0

 

Page 296

 

 

 

 

 

00Bh

WO

DMA Channel Mode Register, Channels 3:0

 

Page 297

 

 

 

 

 

00Ch

WO

DMA Clear Byte Pointer Command, Channels 3:0

 

Page 297

 

 

 

 

 

00Dh

WO

DMA Master Clear Command, Channels 3:0

 

Page 297

 

 

 

 

 

00Eh

WO

DMA Clear Mask Register Command, Channels 3:0

 

Page 297

 

 

 

 

 

00Fh

WO

DMA Write Mask Register Command, Channels 3:0

 

Page 297

 

 

 

 

 

0C0h

R/W

DMA Channel 4 Address Register (Not used)

 

Page 297

 

 

 

 

 

0C2h

R/W

DMA Channel 4 Transfer Count Register (Not Used)

 

Page 297

 

 

 

 

 

0C4h

R/W

DMA Channel 5 Address Register

 

Page 297

 

 

 

 

 

0C6h

R/W

DMA Channel 5 Transfer Count Register

 

Page 297

 

 

 

 

 

0C8h

R/W

DMA Channel 6 Address Register

 

Page 297

 

 

 

 

 

0CAh

R/W

DMA Channel 6 Transfer Count Register

 

Page 297

 

 

 

 

 

0CCh

R/W

DMA Channel 7 Address Register

 

Page 297

 

 

 

 

 

0CEh

R/W

DMA Channel 7 Transfer Count Register

 

Page 297

 

 

 

 

 

0D0h

Read

DMA Status Register, Channels 7:4

 

Page 298

 

 

 

 

 

 

Write

DMA Command Register, Channels 7:4

 

Page 298

 

 

 

 

 

0D2h

WO

Software DMA Request Register, Channels 7:4

 

Page 299

 

 

 

 

 

0D4h

W

DMA Channel Mask Register, Channels 7:4

 

Page 299

 

 

 

 

 

0D6h

WO

DMA Channel Mode Register, Channels 7:4

 

Page 299

 

 

 

 

 

0D8h

WO

DMA Clear Byte Pointer Command, Channels 7:4

 

Page 299

 

 

 

 

 

0DAh

WO

DMA Master Clear Command, Channels 7:4

 

Page 299

 

 

 

 

 

0DCh

WO

DMA Clear Mask Register Command, Channels 7:4

 

Page 299

 

 

 

 

 

0DEh

WO

DMA Write Mask Register Command, Channels 7:4

 

Page 300

 

 

 

 

 

DMA Page Registers (Table 6-44)

 

 

 

 

 

 

 

081h

R/W

DMA Channel 2 Low Page Register

 

Page 300

 

 

 

 

 

082h

R/W

DMA Channel 3 Low Page Register

 

Page 300

 

 

 

 

 

083h

R/W

DMA Channel 1 Low Page Register

 

Page 300

 

 

 

 

 

087h

R/W

DMA Channel 0 Low Page Register

 

Page 300

 

 

 

 

 

089h

R/W

DMA Channel 6 Low Page Register

 

Page 300

 

 

 

 

 

08Ah

R/W

DMA Channel 7 Low Page Register

 

Page 300

 

 

 

 

 

08Bh

R/W

DMA Channel 5 Low Page Register

 

Page 300

 

 

 

 

 

08Fh

R/W

Sub-ISA Refresh Low Page Register

 

Page 300

 

 

 

 

 

481h

R/W

DMA Channel 2 High Page Register

 

Page 300

 

 

 

 

 

482h

R/W

DMA Channel 3 High Page Register

 

Page 300

 

 

 

 

 

483h

R/W

DMA Channel 1 High Page Register

 

Page 300

 

 

 

 

 

 

 

 

 

 

186

 

 

AMD Geode™ SC3200 Processor Data Book

Page 186
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AMD SC3200 manual ISA Legacy I/O Register Summary, DMA Page Registers Table, 186