> 
> Has anyone heard of a SCSI card that presents itself thus:
> 
> isapnp0: <SYM 53C416       , SLI4163, , > port 0x200/32 irq 5 not configured
> 
> It must be an el cheapo SCSI card; I got it with my scanner.

SOunds like a variant of the 53C400 used in el cheapo scanner connector boards.
AFAIK, polled - only, or maybe interupt, with a pretty deep FIFO.

You could try to ask literature@symbios.com for a handbook.

Regards,
	Ignatios