Sundance Technology
ST201
PRELIMINARY draft 2
RXDMAFRAGLEN
Class | DMA Data Structures, RFD |
Base Address | Start of RFD |
Address Offset | 0x04+n·8 for nth fragment |
Access Mode | Read/Write |
Width | 32 bits |
The fourth and all subsequent even dwords in the RFD contains fragment length and control information for the block of data pointed to by the previous RxDMAFragAddr.
BIT
12..0
30..13
31
BIT NAME
FragLen
Reserved
RxDMALastFrag
BIT DESCRIPTION
The length of the contiguous block of data pointed to by the previous RxDMAFragAddr.
Reserved for future use. Should be set to 0.
Set by the host system to indicate the last fragment of the receive frame.
36
