30 May
1999
30 May
'99
12:41 p.m.
On May 30, 12:24, Allison J Parent wrote:
Subject: Re: National SC/MP data
<Hi all,
<Today I bought a SC/MP wirewrapped board. Does anyone know of a site
with
<data sheet? My search came up with what is known
as "SC/MP II",
including
<description of a "MK14" project in
Practical Electronics mag. In
<particular, the chip on my board requires an unknown neg. voltage on pin
<40, instead of +5 Volts on the later NMOS versions. The actual part No.
is
<ISP-8A/500D
A while ago, I found a website dealing with MK14 things at
http://members.aol.com/mk14emu/
It includes a copy of of the PE review.
I have a working example of the inexpensive board
national sold with that
chip, 256bytes of ram and a monitor.
I'd doubt there is a site with a data sheet unless someone got permission
form National Semi to scan one.
The Introkit and the MK14 are very similar. The site I mentioned above has
part of the SC/MP data sheet, the MK14 circuit diagram and parts lists, and
programing information. Now all I need is the SC/MP chip.
Related topic: has anyone here come across a small micro called a Scrumpi,
based ob the SC/MP?
--
Pete Peter Turnbull
Dept. of Computer Science
University of York