Instruction manual

8.2.3 SCSI[x] DMA Address Register (SDAx)—1.8004.1x00/1.C004.1x00
The SDAx is the longword DMA address. It increments as data leaves the ASIC
and can be polled to indicate the address of data to be transferred next. At the
end of a transfer, it holds the address of the remaining unaligned data. If another
DMA transfer continues the previous one and the transfer count was a multiple
of four bytes, the address need not be reloaded.
The register’s format and contents are:
0031
MR−0099−93RAGS
DMA ADDRESS<33:02>
Bit Access Reset Descriptron
31:0 R/W 0 DMA Address<33:02>
8–8 TURBOchannel Dual SCSI ASIC