14 May
2007
14 May
'07
10:38 p.m.
Thanks Pete
Heres my list of KJD11 variations:
Module Type Speed RAM ROM LTC SLU
------ ---- ----- --- --- --- ---
M8192 KDJ11-AA 15 0 0 No 0
KDJ11-AB 18 0 0 No
0
M8190 KDJ11-BB 15 0 Y Yes 2
KDJ11-BF 18 0 Y Yes
2
M7554 KDJ11-D 15 1.5 Y Yes 2
M8981 KDJ11-EA 15 2 Y Yes
1
KDJ11-EB 18 4 Y Yes
8
KDJ11-SD
Anybody want to amend and add the module for the memory?
Rod
-----Original Message-----
From: cctech-bounces at classiccmp.org
[mailto:cctech-bounces at classiccmp.org] On Behalf Of Pete Turnbull
Sent: 14 May 2007 21:21
To: On-Topic and Off-Topic Posts
Subject: Re: The Last of The Line
On 14/05/2007 09:01, Rod Smallwood wrote:
All of your points are well made. One is very
important the KDJ11-EB
has its memory on the CPU board. Are you saying some models of the
KDJ11 do not have their memory on the CPU board? Is it a case of
unpopulated sockets and add memory or is it no sockets and no memory?
KDJ11-E (M8981) is a quad-height board used in 11/93 and 11/94, running
at 18MHz, with up to 4MB of RAM on board. It also has a floating point
processor, boot ROMs, line time clock, and 8(?) serial ports.
KDJ11-D (M7554) is a quad-height board used in 11/53, usually running at
15MHz, with either 512KB or 1.5MB of RAM, boot ROMs, LTC, and 2 SLUs.
It's one of the slowest KDJ11s; the 11/53 was meant as a low-cost
system. The same board, but with different ROMs and different handles
(KDJ11-S), was used in some tabletop systems.
KDJ11-B (M8190) is a quad-height board with no RAM (and no sockets for
it), but with boot ROMs, LTC, and 2 SLUs. It was available as 15MHz for
the 11/73, and 18MHz for the 11/83 and 11/84. 18MHz versions normally
included the FPJ11 floating point processor chip; 15MHz usually merely
had the socket; some early 15MHz versions won't accept an FPJ11 chip.
These boards will work with PMI memory as well as with ordinary QBus
memory.
KDJ11-A (M8192) is a dual-height board clocked at 15MHz, with no RAM,
boot ROMs, LTC, SLUs, or other embellishments. In other words, it's
just a CPU. Used in a few 11/73S systems, as an OEM board, and for
11/23 upgrades. Early revisions won't accept an FPJ11 chip.
See Micronotes 25, 30, and 39.
--
Pete Peter Turnbull
Network Manager
University of York
15 May
15 May
7:43 a.m.
On 14/05/2007 23:38, Rod Smallwood wrote:
Thanks Pete
Heres my list of KJD11 variations:
Module Type Speed RAM ROM LTC SLU
------ ---- ----- --- --- --- ---
M8192 KDJ11-AA 15 0 0 No 0
KDJ11-AB 18 0 0 No 0
M8190 KDJ11-BB 15 0 Y Yes 2
KDJ11-BF 18 0 Y Yes 2
M7554 KDJ11-D 15 1.5 Y Yes 2
M8981 KDJ11-EA 15 2 Y Yes 1
KDJ11-EB 18 4 Y Yes 8
KDJ11-SD
I don't remember there ever being an 18MHz KDJ11-A. The variants of the
KDJ11-A differ in CPU and ASIC revision, which determines whether an
FPJ11 works in them. -AA (M8192) doesn't work with FPJ11, -AB
(M8192-YB) does but was supplied without one fitted, and -AC (M8192-YC)
was factory-fitted wioth one.
The suffixes can be confusing, not least because on other microPDP-11
machines (KDF11-B) the -Bx suffix relates to the ROM set not the board
design.
The -BB is the 15MHz board without FPU (as delivered by the factory) but
capable of using one; it's an M8190-AB. The -BC is the same board but
different ASICs and/or CPU and won't work with an FPU (M8190 with no
suffix). The -BF and -BE are the 18MHz board, all of which should work
with an FPU, and as supplied in 11/83s all had one fitted -- these are
all M8190-AE. I suspect -BF denotes the one with the later version 7.0
(instead of 6.0) ROMS, but I'm less sure about that.
The suffixes on the handle tell you about the board revision. It's true
that MicroPDP-11/73s used the 15MHz -BB board and had the 6.0 ROM set
(and were supplied with QBus memory), and the original MicroPDP-11/83s
ran at 18MHz (and were supplied with PMI memory) but these sometimes got
upgraded over time, so looking at the suffix on the handle won't
necessarily tell you what ROMs are in them, or whether it has an FPJ11,
and the ROMs won't tell you the speed.
Also, there were two versions of the KDJ11-D, with 0.5MB and 1.5MB of
memory, and matching variants of the KDJ11-S.
I'm sure the different version of the KDJ11-E all had the same number of
SLUs. Only one can be configured to be the console port, of course --
perhaps that's why you've seen one described as "one console port"
rather than "8 SLUs".
Anybody want to amend and add the module for the
memory?
Look in the Field Guide, which Megan Gentry maintains. However, I have
a one-page list on paper somewhere which summaries the board size,
capacity, number of address bits, refresh capability, parity capability,
and PMI capability of most QBus memory.
--
Pete Peter Turnbull
Network Manager
University of York
4:23 p.m.
On 14/05/2007 23:38, Rod Smallwood wrote:
Anybody want to amend and add the module for the
memory?
I found the page I referred to in my earlier message, and the (retyped
-- so please let me know if there are typos) list is now on my website.
http://www.dunnington.u-net.com/public/PDP-11/QBus_memory
It doesn't include multi-function boards (the MXV11-A and MXV11-B) or
ROM boards (MRV11-A/B/C/D, some of which have a little RAM on them).
It also doesn't have columns to specify whether the boards work in
Qbus/Qbus backplanes or Q/CD backplanes without releasing magic smoke,
whether they have provision to use battery power, whether they have
options to disable the parity CSR, or support block-mode transfers. I'd
expect users to get the nitty-gritty from the relevant user guides or
handbooks.
As always, additions and corrections are welcome.
--
Pete Peter Turnbull
Network Manager
University of York
6:24 p.m.
New subject: The Last of The Line
On 5/15/07, Pete Turnbull <pete at dunnington.plus.com> wrote:
http://www.bitsavers.org/pdf/dec/qbus/EK-MSV1J-UG_001_May85.pdf
MSV11-JB M8637-B 1 MB ECC PDP-11/84 ONLY
MSV11-JC M8637-C 2 MB ECC PDP-11/84 ONLY
MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83
MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83
NOTE: Modules designated MSV11-JB and MSV11-JC may be used in the
PDP-11/84 (UNIBUS) system only. Modules designated MSV11-JD and
MSV11-JE may be used in both the PDP-11/84 and PDP-11/83 (Q-bus)
systems.
NOTE: MSV11-JB and MSV11-JC cannot perform Q-bus protocol.
NOTE: Insertion of the MSV11-J in a Q-Q backplane my damage other
components or the memory itself. The PMI bussing of the MSV11-J's CD
connectors is not compatible with the +12V bussing on the Q-Q
backplane.
Anybody want to amend and add the module for the
memory?
http://www.dunnington.u-net.com/public/PDP-11/QBus_memory
It also doesn't have columns to specify whether the boards work in
Qbus/Qbus backplanes or Q/CD backplanes without releasing magic smoke,
whether they have provision to use battery power, whether they have
options to disable the parity CSR, or support block-mode transfers. I'd
expect users to get the nitty-gritty from the relevant user guides or
handbooks.
As always, additions and corrections are welcome.
16 May
16 May
1:43 a.m.
New subject: The Last of The Line
On 15/05/2007 19:24, Glen Slick wrote:
On 5/15/07, Pete Turnbull <pete at
dunnington.plus.com> wrote:
>
http://www.dunnington.u-net.com/public/PDP-11/QBus_memory
> As always, additions and corrections are welcome.
MSV11-JB M8637-B 1 MB ECC PDP-11/84 ONLY
MSV11-JC M8637-C 2 MB ECC PDP-11/84 ONLY
MSV11-JD M8637-D 1 MB ECC PDP-11/84 or PDP-11/83
MSV11-JE M8637-E 2 MB ECC PDP-11/84 or PDP-11/83
NOTE: Modules designated MSV11-JB and MSV11-JC may be used in the
PDP-11/84 (UNIBUS) system only. Modules designated MSV11-JD and
MSV11-JE may be used in both the PDP-11/84 and PDP-11/83 (Q-bus)
systems.
If you look, you'll see I did in fact include that information in the
note at the bottom.
--
Pete Peter Turnbull
Network Manager
University of York
5:23 a.m.
New subject: The Last of The Line
On 5/15/07, Pete Turnbull <pete at dunnington.plus.com> wrote:
If you look, you'll see I did in fact include that
information in the
note at the bottom.
Sorry I missed that in your list. Looks like a useful list to
bookmark. Thanks.
http://www.dunnington.u-net.com/public/PDP-11/QBus_memory
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glen.slick＠gmail.com -
pete＠dunnington.plus.com -
RodSmallwood＠mail.ediconsulting.co.uk