11 Jan
2011
11 Jan
'11
8:31 a.m.
On 11/01/2011 03:21, Charles Morris wrote:
The 11/23+ chassis came with a sixteen-serial-line
(Camintonn
DHV11/16) card which is complete with a rack panel of 16 DE-9 serial
ports, and fortunately the scrappers had not cut the ribbon cable
going to it.
So I would like to set up the system for timesharing
using the 16-line
card. After perusing the TSX+ manuals I believe I can accomplish a
system generation, except for one problem - I don't know the interrupt
vector and CSR addresses for the Camintonn DHV11/16.
Presumably your 11/23+ has a quad-high M8189 KDF11-B CPU, with on-board
serial lines, in which case you can assume the console is on that card,
not the DHV11 (DEC DHV11s are just serial multiplexers and don't provide
a console line, but a few third-party equivalents do).
If this is the same as the card I have in one of mine, perhaps it's set
up similarly, as if it were the first multiplexer. I don't have a
manual, but mine is set up thus:
Camintonn CMDHV11:
W5 made
A12 etc: first 8 closed, remaining 3 open
V8 etc: V8 closed, next 2 open, next 2 closed, remaining 6 open
4 molex links by each O/P, all made towards B edge
Unfortunately I didn't write down what address/vector that corresponds
to, and I can't get at the 11/83 it's in right now. It's probably on
the first usable floating address, 17760020, and the first available vector.
If that doesn't help, you could at least find out what address it's set
to by running a (fairly) little toggle-in program to find all the I/O
addresses in use in the machine. Look at
http://www.dunnington.u-net.com/public/ODT/Listings/FindCSR for example.
--
Pete Peter Turnbull
Network Manager
University of York