Регистры H616: DMA Channel Configuration Register(N=0~15)

31 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 16
15 |•|•|•|•|•|•|•|•|•|•|•|•|•|•|•|•| 00

Unused

Bits 31 : 27

DMA_DEST_DATA_WIDTH

Bits 26 : 25
R
0x0

DMA Destination Data Width
00: 8-bit
01: 16-bit
10: 32-bit
11: 64-bit

DMA_ADDR_MODE

Bit 24
R
0x0

DMA Destination Address Mode
0: Linear Mode
1: IO Mode

DMA_DEST_BLOCK_SIZE

Bits 23 : 22
R
0x0

DMA Destination Block Size
00: 1
01: 4
10: 8
11: 16

DMA_DEST_DRQ_TYPE

Bits 21 : 16
R
0x0

DMA Destination DRQ Type
The details in DRQ Type and Port Corresponding Relation.

Unused

Bits 15 : 11

DMA_SRC_DATA_WIDTH

Bits 10 : 9
R
0x0

DMA Source Data Width
00: 8-bit
01: 16-bit
10: 32-bit
11: 64-bit

DMA_SRC_ADDR_MODE

Bit 8
R
0x0

DMA Source Address Mode
0: Linear Mode
1: IO Mode

DMA_SRC_BLOCK_SIZE

Bits 7 : 6
R
0x0

DMA Source Block Size
00: 1
01: 4
10: 8
11: 16

DMA_SRC_DRQ_TYPE

Bits 5 : 0
R
0x0

DMA Source DRQ Type
The details in DRQ Type and Port Corresponding Relation.

Bit fields structure

typedef union dma_cfg_reg { struct { unsigned dma_src_drq_type : 6; unsigned dma_src_block_size : 2; unsigned dma_src_addr_mode : 1; unsigned dma_src_data_width : 2; unsigned unused0 : 5; unsigned dma_dest_drq_type : 6; unsigned dma_dest_block_size : 2; unsigned dma_addr_mode : 1; unsigned dma_dest_data_width : 2; unsigned unused1 : 5; } b; unsigned long w; } DMA_CFG_REG