> -----Original Message----- > From: cctalk <[email protected]> On Behalf Of Noel Chiappa via cctalk > Sent: Monday, February 21, 2022 10:19 AM > To: [email protected] > Cc: [email protected] > 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
