18 Jun
2019
18 Jun
'19
3:22 a.m.
On 18/06/2019 01:56, Joe Zatarski via cctech wrote:
OK, so where should a thing like this go:
https://pastebin.com/taQwaTV6
Anybody got a decent place to upload that? it's my notes on the MS650-AA,
and more generally the KA650 CMCTL memory subsystem.
Includes my theory of operation of the CMCTL, the organization of memory,
the ECC equations (kinda, the info is there to derive them), explanations
of the signals on the memory bus, and most importantly, a list of which
bits and RAM regions correspond to the 312 DRAMs on the board.
Sounds ideal for the Computer History Wiki:
http://gunkies.org/wiki/Main_Page.
Antonio
--
Antonio Carlini
antonio at acarlini.com