[Simh] CI750 tech docs and VAX firmware

[Tim Stark]

Folks,

Hmm.   I checked TOPS-10 7.04 monitor source codes and found two files about SCS/SCA packet info but did not find any files about CI interface. 
I think TOPS-10 can communicate through DECnet.

I think that transport layers are SCS/SCA layers. 

There is commercial emulator (Charon-VAX) emulates CI hardware and HSJ50 controllers.  They are much faster than actual CI hardware.

So that we can implement them on SIMH and other emulators possibly.

Tim

-----Original Message-----
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Rich Alderson
Sent: Tuesday, March 7, 2017 2:37 PM
To: simh at trailing-edge.com
Subject: Re: [Simh] CI750 tech docs and VAX firmware

> Unless I remember totally wrong, only the HSC50 could do 576 byte sectors.
> It was dropped in a pretty early version of CRONIC, before support for 
> any other HSC controller existed.

Correct.  Only the HSC50 ever supported 576-byte sectors, and only on RA81 and smaller drives.  (We really wanted RA82s on our 4-system CI cluster at Stanford LOTS, but were informed that it would never ever happen.)

                                                                Rich _______________________________________________
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