SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 197

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

Revision 3.0
Core Logic Module
I/O Port
DMA Channel Control Registers (Table 5-43)
DMA Page Registers (Table 5-44)
081h
082h
083h
087h
089h
08Ah
08Bh
08Fh
481h
482h
483h
487h
0CCh
0DCh
00Ch
00Dh
0C0h
0C2h
0C4h
0C6h
0C8h
0CAh
0CEh
0D0h
0D2h
0D4h
0D6h
0D8h
0DAh
0DEh
00Ah
00Bh
00Eh
00Fh
000h
001h
002h
003h
004h
005h
006h
007h
008h
009h
Type
Read
Write
Read
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
W
W
(Continued)
Name
DMA Channel 0 Address Register
DMA Channel 0 Transfer Count Register
DMA Channel 1 Address Register
DMA Channel 1 Transfer Count Register
DMA Channel 2 Address Register
DMA Channel 2 Transfer Count Register
DMA Channel 3 Address Register
DMA Channel 3 Transfer Count Register
DMA Status Register, Channels 3:0
DMA Command Register, Channels 3:0
Software DMA Request Register, Channels 3:0
DMA Channel Mask Register, Channels 3:0
DMA Channel Mode Register, Channels 3:0
DMA Clear Byte Pointer Command, Channels 3:0
DMA Master Clear Command, Channels 3:0
DMA Clear Mask Register Command, Channels 3:0
DMA Write Mask Register Command, Channels 3:0
DMA Channel 4 Address Register (Not used)
DMA Channel 4 Transfer Count Register (Not Used)
DMA Channel 5 Address Register
DMA Channel 5 Transfer Count Register
DMA Channel 6 Address Register
DMA Channel 6 Transfer Count Register
DMA Channel 7 Address Register
DMA Channel 7 Transfer Count Register
DMA Status Register, Channels 7:4
DMA Command Register, Channels 7:4
Software DMA Request Register, Channels 7:4
DMA Channel Mask Register, Channels 7:4
DMA Channel Mode Register, Channels 7:4
DMA Clear Byte Pointer Command, Channels 7:4
DMA Master Clear Command, Channels 7:4
DMA Clear Mask Register Command, Channels 7:4
DMA Write Mask Register Command, Channels 7:4
DMA Channel 2 Low Page Register
DMA Channel 3 Low Page Register
DMA Channel 1 Low Page Register
DMA Channel 0 Low Page Register
DMA Channel 6 Low Page Register
DMA Channel 7 Low Page Register
DMA Channel 5 Low Page Register
Sub-ISA Refresh Low Page Register
DMA Channel 2 High Page Register
DMA Channel 3 High Page Register
DMA Channel 1 High Page Register
DMA Channel 0 High Page Register
Table 5-28. ISA Legacy I/O Register Summary
197
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