cs5535 National Semiconductor Corporation, cs5535 Datasheet - Page 409

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

Revision 0.8
DMA Register Descriptions
5.13.2.8
I/O Address
Type
Reset Value
5.13.2.9
I/O Address
Type
Reset Value
5.13.2.10 Slave DMA Channel [3:0] Write Mask Register (DMA_CH3:0_WR_MSK)
I/O Address
Type
Reset Value
Bit
7:0
Bit
7:0
Bit
7:0
7
7
7
Slave DMA Channel [3:0] Master Clear (DMA_CH3:0_MSTR_CLR)
Slave DMA Channel [3:0] Clear Mask Register (DMA_CH3:0_CLR_MSK)
Name
CLR_PNTR
Name
MSTR_CLR
Name
CLR_MSK
00Dh
WO
xxh
00Eh
WO
xxh
00Fh
WO
0Fh
6
6
6
RSVD
Description
Clear Pointer. A write with any data (dummy value) resets high/low byte pointer for
Channels 3:0 memory address and terminal count registers.
Description
Master Clear. A write with any data (dummy value) resets the 8237 DMA controller for
Channels [3:0].
Description
Clear Mask. A write with any data (dummy value) clears the mask bits for Channels
[3:0].
DMA_CH3:0_CLR_PNTR Bit Descriptions
DMA_CH3:0_MSTR_CLR Bit Descriptions
DMA_CH3:0_CLR_MSK Bit Descriptions
5
5
5
DMA_CH3:0_MSTR_CLR Register Map
DMA_CH3:0_CLR_MSK Register Map
DMA_CH3:0_WR_MSK Register Map
(Continued)
MSTR_CLR (DUMMY_VAL)
CLR_MSK (DUMMY_VAL)
4
4
4
409
CH3_MASK
3
3
3
CH2_MASK
2
2
2
CH1_MASK
1
1
1
www.national.com
CH0_MASK
0
0
0