asc(4) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
ASC(4)                NetBSD/vax Kernel Interfaces Manual               ASC(4)

asc -- VAXstation 4000 SCSI controller
asc* at vsbus? csr 0x200c0080 (VS-4000/60 or VLC) asc* at vsbus? csr 0x25000080 (VS-4000/9x) asc* at tc? (Not yet supported) scsibus* at asc?
The asc driver provides support for the NCR 53c94-based SCSI host adapter on the VAXstation 4000 series, and for the PMAZ-AA and related TURBOchan- nel SCSI adapter option boards (also on the VAXstation 4000 series models which include support for the TURBOchannel adapter).
The asc driver supports the following flags for use in config(1) files: bits 0-7: disable disconnect/reselect for the corresponding SCSI target bits 8-15: disable synchronous negotiation for SCSI target "Target" is synonymous with SCSI ID number. Note that SCSI tape drives should be allowed to perform disconnect/rese- lect or performance will suffer.
cd(4), ch(4), esp(4), scsi(4), sd(4), st(4), vax/intro(4)
The asc driver first appeared in NetBSD 1.5. NetBSD 9.0 February 17, 2017 NetBSD 9.0
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