cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 408

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

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DMA Register Descriptions
5.13.2.6
I/O Address
Type
Reset Value
5.13.2.7
I/O Address Offset
Type
Reset Value
Bit
7:3
1:0
Bit
7:6
3:2
1:0
2
5
5
7
7
TRANS_MODE
Slave DMA Channel [3:0] Mode (DMA_CH3:0_MODE)
Slave DMA Channel [3:0] Clear Byte Pointer (DMA_CH3:0_CLR_PNTR)
Name
RSVD
CH_MASK
DMA_CH_SEL
Name
TRANS_MODE
ADDR_DIR
AUTO_INIT
TRANS_TYPE
DMA_CH_SEL
00Bh
WO
xxh
00Ch
WO
xxh
6
6
ADDR_DIR
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 0.
01: Channel 1.
Description
Data Transfer Mode.
00: Demand.
01: Single.
Address Direction. 0: Increment; 1: Decrement.
Auto-Initialization Enable. 0: Disabled; 1: Enabled.
Transfer Type.
00: Verify.
01: Memory write.
DMA Channel Select.
00: Channel 0.
01: Channel 1.
5
5
DMA_CH3:0_CLR_PNTR Register Map
DMA_CH3:0_CHMSK Bit Descriptions
DMA_CH3:0_MODE Bit Descriptions
(Continued)
DMA_CH3:0_MODE Register Map
AUTO_INIT
CLR_PNTR (DUMMY_VAL)
4
4
408
3
3
TRANS_TYPE
10: Channel 2.
11: Channel 3.
10: Block.
11: Cascade.
10: Memory read.
11: Reserved
10: Channel 2.
11: Channel 3.
2
2
1
1
DMA_CH_SEL
Revision 0.8
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