cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 412

• Manufacturer Part Number: cs5535
• Description: Geode Cs5535 Companion Multi-function South Bridge
• Manufacturer: National Semiconductor Corporation

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DMA Register Descriptions
5.13.2.14 Master DMA Channel [7:4] Software Request (DMA_CH7:4_SFT_REQ)
I/O Address
Type
Reset Value
5.13.2.15 Master DMA Channel [7:4] Channel Mask (DMA_CH7:4_CHMSK)
I/O Address
Type
Reset Value
Bit
1:0
Bit
7:3
1:0
Bit
7:3
1:0
2
2
2
7
7
Name
DMA_DIS
RSVD
RSVD
DMA_RQ
DMA_CH_SEL
Name
RSVD
CH_MASK
DMA_CH_SEL
Name
0D2h
WO
xxh
0D4h
WO
xxh
6
6
DMA_CH7:4_CMD Bit Descriptions (Continued)
Description
DMA Disable. 0: DMA enable for Channels [7:4]; 1: DMA disable for Channels [7:4].
Reserved. Bit 0 must be written with value 0; bit 1 value is don’t care.
Description
Reserved. Write value is don’t care.
DMA Request. Set to 1 to enable DMA request.
DMA Channel Select.
00: Channel 4.
01: Channel 5.
Description
Reserved. Write value is don’t care.
Channel Mask. Set to 1 to mask out DMA for selected channel.
DMA Channel Select.
00: Channel 4.
01: Channel 5.
RSVD
RSVD
DMA_CH7:4_SFT_REQ Bit Descriptions
5
5
DMA_CH7:4_CHMSK Bit Descriptions
DMA_CH7:4_SFT_REQ Register Map
(Continued)
DMA_CH7:4_CHMSK Register Map
4
4
412
3
3
10: Channel 6.
11: Channel 7.
10: Channel 6.
11: Channel 7.
CH_MASK
DMA_RQ
2
2
1
1
DMA_CH_SEL
DMA_CH_SEL
Revision 0.8
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