brian@sdcsvax.UUCP (Brian Kantor) (02/20/86)
Does anyone out there have a design or a pointer to an application note for a DMA SCSI interface? I am thinking of using a MC68440 Dual DMA controller to implement one in a 68000 system for a radio system communications interface and controller, but other dma chips or methods would be of interest too. Or is DMA worth doing? I've always used interrupt-synchronized processor byte i/o for SASI interfaces, but this application will have LOTS of block i/o going on constantly on the SASI bus, so it might be worth it. First cut on the design uses a 68010 at 8 MHz, 68440 DDMA, 68230, 8530, some miscellaneous i/o, 128K of PROM, and 1/2 to 1 meg of DRAM. In other words, sort of a vanilla controller. Brian Kantor UCSD Office of Academic Computing Academic Network Operations Group UCSD B-028, La Jolla, CA 92093 (619) 452-6865 decvax\ brian@sdcsvax.ucsd.edu ihnp4 >--- sdcsvax --- brian ucbvax/ Kantor@Nosc