fur@ai.mit.edu (Scott Furman) (06/17/91)
We're looking to build a custom SCSI adaptor for our experimental parallel computer (actually an array of 32 adaptors). We're hoping to get some advice/help from the net. A) Our PC board real-estate constraints require that we switch to a smaller cable and connector than the standard. I have heard of a new de facto standard for SCSI-2 cables. I think they were referred to as "Honda" cables. Can anyone give me some more info on these? B) We've been looking at SCSI interface chips and have found individual features we like in some chips, but we haven't found one that has all the features we would like. We are looking for the following characteristics: 1) non-multiplexed MPU bus i.e. separate address and data lines. 2) *dedicated* DMA bus or integral DMA controller or integral buffer controller. That is, wue don't want the MPU bus and the DMA bus to multiplexed. 3) Support for automatic generation of common SCSI protocol sequences e.g. Select w/ Attention. In other words, we want something with more intelligence than a 5380. Can anyone on the net give us some pointers? Thanks in advance Scott Furman MIT Artificial Intelligence Laboratory