3rd MSCP disk controller?

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Tue Oct 26 19:03:31 1999

>Anyone know the "default" CSR for the 3rd MSCP disk controller? (or have
>the CONFIGURE command handy?)

$ mcr sysgen config
DEVICE> kda50 3
%SYSGEN-I-EQV_NOTICE, equivalent name - device KDA50 will be output as UDA
DEVICE> Exit
Device: UDA Name: PUA CSR: 772150 Vector: 154 Support: yes
Device: UDA Name: PUB CSR: 760334* Vector: 300* Support: yes
Device: UDA Name: PUC CSR: 760340* Vector: 304* Support: yes

Note that the presence of a serial multiplexer will change things around
a lot - for example:

$ mcr sysgen config
DEVICE> kda50 3
%SYSGEN-I-EQV_NOTICE, equivalent name - device KDA50 will be output as UDA
DEVICE> dz11 1
DEVICE> Exit
Device: UDA Name: PUA CSR: 772150 Vector: 154 Support: yes
Device: DZ11 Name: TTA CSR: 760100* Vector: 300* Support: yes
Device: UDA Name: PUB CSR: 760354* Vector: 310* Support: yes
Device: UDA Name: PUC CSR: 760360* Vector: 314* Support: yes

If you don't have a machine with CONFIGURE available, you can read
Alan Frisbie's very excellent DECUS presentation on this subject at

ftp://metalab.unc.edu/pub/academic/computer-science/history/pdp-11/hardware/alans.csr.paper

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Tue Oct 26 1999 - 19:03:31 BST

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