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ESP(4) Device Drivers Manual (mac68k) ESP(4)

espESP NCR 53c96 on-board SCSI interface

esp0 at obio?
esp1 at obio?

The esp is an on-board SCSI controller based on the NCR 53c96 chip, found on Apple Quadra/Centris machines.

Tape devices should be allowed to disconnect for the SCSI bus to operate acceptably.

cd(4), ch(4), intro(4), obio(4), scsi(4), sd(4), st(4), uk(4)

The esp driver first appeared in NetBSD 1.3.

The pseudo-DMA mode only works on non-AV Quadra/Centris machines at this time.

May 31, 2007 OpenBSD-5.1