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From: ken@Control.COM (Ken Crater)
Newsgroups: comp.sys.intel
Subject: 80C196 silicon bug?
Summary: Has anyone experienced a problem with new step C196?
Keywords: 80C196
Message-ID: <1204@cthulhuControl.COM>
Date: 16 Apr 91 15:37:37 GMT
Distribution: comp
Organization: Control Technology Corp., Hopkinton MA
Lines: 18

80C196KC processors in an existing application, and can't seem to get info
from the folks at Intel.  Has anyone else run into this?:

I'm using port 2.5 as a general purpose output pin, but occasionally the
CPU seems to turn on the PWM function which shares this pin, causing the
pin to adopt a low state.  Using a diagnostic firmware pass, an instruction
explicitly turning OFF the PWM function cures the problem (after it has 
occurred!).

This only happens with the newer date codes, and the repeatability varies
from part to part.  Any insight will be appreciated, as we are now 
contemplating an extensive ECO to work around this problem.  Thanks in
advance.

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Ken Crater                                            ken@control.com
Control Technology Corporation                        (508) 435-9595
Hopkinton, MA