NAME
tcds —
TURBOchannel dual-channel SCSI
adapters
SYNOPSIS
tcds* at tc? slot ? offset ?
DESCRIPTION
Thetcds driver provides support for the DEC
TURBOchannel PMAZ-DS, PMAZ-FS, PMAZB-AA and PMAZC-AA dual-channel SCSI
adapters. Each channel is driven by the
asc(4)
driver. The PMAZ-FS (Alpha onboard only) and PMAZC-AA (option board) provide
two Fast Narrow SCSI busses, while the PMAX-DS (Alpha onboard only) and
PMAZB-AA only provide Narrow SCSI. For the onboard Alpha controllers, one bus
is for internal devices and one bus for external devices.