30 Jul
2013
30 Jul
'13
4:24 a.m.
On Jul 30, 2013, at 0:33, Kyle Owen <kylevowen at gmail.com> wrote:
I'm planning on constructing a PDP-11 S-100 card
and intend to use the F-11
chipset. However, I've yet to find any decent information on the F-11, or
the J-11 for that matter. Does anyone have the pinout information, or any
other good design info?
The schematics (available on Bitsavers) for the KDF11 (both the -A and -B versions) may be
helpful. The KDF11 manuals also have a fairly useful theory of operation section that (I
think) also explain how the various bits are decoded to generate the bus cycles.
Having the MMU pinout might be helpful as well.
Also in said schematics.
I know there has been interest in this before and
would love to help create
a final product. A PDP-8 S-100 board using a 6100/6102 or 6120 would also
be nice. What to do with the extra nibble in RAM, though? Checksum?
Sounds like a neat idea, though I hope you won't be stripping too many
otherwise-working KDF11 boards! Not that they're exactly hen's teeth, but still.
- Dave