Re: UNIBUS M9312 ROMS (Don North)

[Michael Thompson]

>
> From: Don North <ak...@mindspring.com>
> Subject: Re: UNIBUS M9312 ROMS (Don North)
> Message-ID: <498c12dd-437a-31ce-0a04-4602e50f6...@mindspring.com>
>
> There is a three PROM set 23-86[234]A9 for device code XM which is DDCMP
> boot
> over a DMC11/DMR11. Those PROMs are available and on my web page.
>
> I am not aware of the four PROM set you mention, but it could certainly be
> a
> custom one for that application.
>
> --
> Don North
> AK6DN
>
>
I looked in my notes. The 11/34s and KL10 talked through DMR11-ACs using
the megabit COAX interface. Maybe the three PROM version that you have is
the right one for this configuration, and there was another PROM on the
M9312.

-- 
Michael Thompson

Re: UNIBUS M9312 ROMS (Don North)

[Michael Thompson]

>
> From: Don North 
> Subject: Re: UNIBUS M9312 ROMS
>
> Actually the page listed below is a big out of date with respect to some
> M9312
> images (it is not an up to date mirror).
> The up to date page is at:  http://ak6dn.dyndns.org/PDP-11/M9312/
>
> --
> Don North
> AK6DN
>

RCS/RI has some PDP-11/34 systems that booted, I think using DDCMP, via a
COAX interface from a PDP-10 KL10. I think that it took four ROMs to hold
the boot loader. You might not have a copy of those ROMs.

-- 
Michael Thompson

Re: UNIBUS M9312 ROMS (Don North)

[Don North]

On 6/10/2016 4:56 AM, Michael Thompson wrote:

From: Don North 
Subject: Re: UNIBUS M9312 ROMS

Actually the page listed below is a big out of date with respect to some
M9312
images (it is not an up to date mirror).
The up to date page is at:  http://ak6dn.dyndns.org/PDP-11/M9312/

--
Don North
AK6DN


RCS/RI has some PDP-11/34 systems that booted, I think using DDCMP, via a
COAX interface from a PDP-10 KL10. I think that it took four ROMs to hold
the boot loader. You might not have a copy of those ROMs.

There is a three PROM set 23-86[234]A9 for device code XM which is DDCMP boot 
over a DMC11/DMR11. Those PROMs are available and on my web page.


A two PROM set 23-E3[23]A9 has been found for etherNet DELUA/DEUNA boot (device 
code XE?) but it has not been reverse engineered. Hopefully soon the device 
patterns will be read and forwarded to me for processing.


I am not aware of the four PROM set you mention, but it could certainly be a 
custom one for that application.



(XM) DECnet DDCMP DMC11/DMR11 	23-862A9 
 	0x0625 	SRC 


LST   (1,2)
23-863A9  
0x063F 	SRC 

LST 
23-864A9  
0x0551 	SRC 

LST 


--
Don North
AK6DN