On Oct 1, 2014, at 11:06 AM, Mark J. Blair <nf6x at nf6x.net> wrote:
On Oct 1, 2014, at 05:42 , Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
The CD pinout is given in the 1980 Microcomputer
Interfaces Handbook under
the H9273-A entry (the H9276-A is the same; I forget where I found that one);
here it is:
Thank you! Here's a new version of my bus comparison table:
https://dl.dropboxusercontent.com/u/29876211/DualWidthBusComparison-v2.pdf
Nice work! Very handy. One suggestion: you might want to split out the
"common function" common to one that doesn't include modified Unibus;
assuming you're only developing peripheral cards (not a guarantee),
you can get away with significantly less HV and -V capable pins if you
ignore that (at the user's peril, I guess).
- Dave