26 Nov
2004
26 Nov
'04
6:43 p.m.
Hello all,
I recently picked up a couple of Intel 8085-based Multibus processor
boards. These are branded Intel and are marked 8024A. They are NOT
the 80/24 board, which I have been able to find info for.
Judging from datecodes, they are aprox. 1990 in age. They have a
Microdesigins, Inc. mezzanine card plugged into them called uDS-221
Multifunction Multimodule which adds serial I/O, battery backed SRAM,
and a real time clock function.
I am looking for info to get these boards up and running. Seem like
nice Intel processor cards.
Here are some pix of the cards (taken and uploaded halfway through
composing this message):
The 8024a board alone:
http://sasteven.multics.org/8024a.jpg
The board with RTC mezzanine card plugged in:
http://sasteven.multics.org/8024a_both.jpg
The RTC mezzanine card alone:
http://sasteven.multics.org/8024a_RTC.jpg
Any info would be greatly appreciated. These three photos are hereby
granted to the public domain. (use them as you wish)
Scott
27 Nov
27 Nov
12:05 a.m.
At 03:43 AM 11/27/04 -0500, you wrote:
Hello all,
I recently picked up a couple of Intel 8085-based Multibus processor
boards. These are branded Intel and are marked 8024A. They are NOT
the 80/24 board, which I have been able to find info for.
IIRC the 80/24 is upwards compatible with the 80/20 and 80/20-4. I have
the last two on my website but never got around to addign the 80/24. The
80/24 has a 8085A-2 CPU that operates at 4.8 or 2.4 KHz, It has 8K of
static RAM and socklets for up to 32K or PROM, 48 programmble I/O lines
with interchangeable drivers/terminators, programmble async o sync RS-232
serial interface, two Multiomode sockets, two programmable 16 BCD or binary
timers/coujnters and can act as a controller in a multiple controller
system. I MAY have the manual for it. I'll try to take a look when I can.
Judging from datecodes, they are aprox. 1990 in age. They have a
Microdesigins, Inc. mezzanine card plugged into them called uDS-221
Multifunction Multimodule which adds serial I/O, battery backed SRAM,
and a real time clock function.
Never seen the Microdesigns RTC boards but I have bunch from Linear
Systems and I have the manuals :-)
I am looking for info to get these boards up and running. Seem like
nice Intel processor cards.
They are but they have aLOT of jumpers that have to be properly set to
get them working.
Here are some pix of the cards (taken and uploaded halfway through
composing this message):
The 8024a board alone:
http://sasteven.multics.org/8024a.jpg
The board with RTC mezzanine card plugged in:
http://sasteven.multics.org/8024a_both.jpg
The RTC mezzanine card alone:
http://sasteven.multics.org/8024a_RTC.jpg
Any info would be greatly appreciated. These three photos are hereby
granted to the public domain. (use them as you wish)
Great. I'll add them to my Multibus page. I don't have any Microdesigns
boards or the 80/24 up there yet.
Joe
Scott
7330
days inactive
7330
days old
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