On Wed, Apr 1, 2009 at 9:13 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote:
AFAIK, it's a terminator and several loopback registers, but the
specific nature of them is unknown to me.
Did you already look at Appendix F, UNIBUS EXERCISER TERMINATOR in the
manual EK-DWBUA-TM-001 DWBUA UNIBUS Adapter Technical Manual?
It has bit level descriptions of the M9313 Address Register, Data
Register, and Control Register.
I don't know anything about this myself, but looked at the doc just
now out of curiousity.
-Glen