30 Jul
2013
30 Jul
'13
6:37 a.m.
You might instead consider basing your design on the M8093 Falcon SBC-11/21
and the T-11 processor? T-11's can be extracted from a variety of boards,
such as versions of the RDRQ disk controller.
http://archive.org/details/bitsavers_decpdp1111_15967429
http://archive.org/details/bitsavers_decpdp11t1_6963777
http://archive.org/details/bitsavers_decpdp11t1_7528719
http://simh.trailing-edge.com/semi/t11.html
"The T-11 had the same feature set as the LSI-11 -- no floating point, no
memory management -- but the integer performance of the F-11. It was
implemented in a scaled version of the F-11 process -- 5u NMOS -- and
operated at 250Mhz (400ns microcycle). The T-11 dissipated less than 1.2W
and cost less than $10 in high volume."
http://simh.trailing-edge.com/semi/f11.html
http://simh.trailing-edge.com/semi/lsi11.html
On Tue, Jul 30, 2013 at 7:24 AM, David Riley <fraveydank at gmail.com> wrote:
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