Is The M9312 Boot Module Essential?

[pbirkel at gmail.com]

> -----Original Message-----
> From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Noel Chiappa via
cctalk
> Sent: Monday, February 21, 2022 10:19 AM
> To: cctalk at classiccmp.org
> Cc: jnc at mercury.lcs.mit.edu
> Subject: Re: Is The M9312 Boot Module Essential?
>...
> Since the M9302 appears in EK-11034-OP-PRE2, with SACK turnaround, I
deduce that the M8264 was 
> produced _after_ that came out, and post-dates the M9302, to fix the
potential CPU hang issue I 
> described - and was later dropped when the -11/34 switched to the KD11-EA,
with that circuit built in.
>...
>	Noel

Note that the RICM has an 11/34 configuration that reports a KD11-EA with a
M8264 "KD11-D/E".  And a M9302 at the bus far-end.

See:
https://www.ricomputermuseum.org/collections-gallery/equipment/dec-pdp-11-34
_-2 

-----
paul