sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 316

• Manufacturer Part Number: sc3200
• Description: Geode-tm Sc3200 Processor
• Manufacturer: Advanced Micro Devices

316
I/O Port 0D0h (R/W)
Read
Note:
Write
Note:
Bit
1:0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
Channels 5, 6, and 7 are not supported.
Channels 5, 6, and 7 are not supported.
Description
Channel 7 Request. Indicates if a request is pending.
0: No.
1: Yes.
Channel 6 Request. Indicates if a request is pending.
0: No.
1: Yes.
Channel 5 Request. Indicates if a request is pending.
0: No.
1: Yes.
Undefined.
Channel 7 Terminal Count. Indicates if TC was reached.
0: No.
1: Yes.
Channel 6 Terminal Count. Indicates if TC was reached.
0: No.
1: Yes.
Channel 5 Terminal Count. Indicates if TC was reached.
0: No.
1: Yes.
Undefined.
DACK Sense.
0: Active low.
1: Active high.
DREQ Sense.
0: Active high.
1: Active low.
Write Selection.
0: Late write.
1: Extended write.
Priority Mode.
0: Fixed.
1: Rotating.
Timing Mode.
0: Normal.
1: Compressed.
Channels 7:4.
0: Disable.
1: Enable.
Reserved. Must be set to 0.
Revision 5.1
Table 6-43. DMA Channel Control Registers (Continued)
DMA Command Register, Channels 7:4
DMA Status Register, Channels 7:4
Core Logic Module - ISA Legacy Register Space
AMD Geode™ SC3200 Processor Data Book