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Struck Documentation
SIS8300-KU
MTCA.4 Digitizer
Page 69 of 92
7.5.42 Write DMA Transfer length
#define DMA_WRITE_LEN
0x213
This register holds the amount of data (bytes) which is going to be transferred.
Bit
31-0
Function
DMA Transfer length
Note: The DMA Transfer length must be a power of two (min. 64 Byte).
0x40, 0x80, 0x100 ….
7.5.43 Write DMA Control
#define DMA_WRITE_CTRL
0x214
This register starts the Write DMA process and allows to poll the transfer status.
Bit
write
read
31
unused
0
...
0
1
unused
0
0
Start DMA
DMA running
7.5.44 Write DMA maximal number of Outstanding Requests
#define
DMA_PC2CARD_MAX_NOF_OUTSTANDING_REQUESTS
0x215
This register defines the maximal number of outstanding requests during a Write DMA
process. The default value is 16 (0x10).
Implemented as test feature, not needed in standard operation.
Bit
function
31
unused
...
6
unused
5
Max Nof Outstanding Req bit 5
..
unused
0
Max Nof Outstanding Req bit 0