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Subject: 
Re: Generic 68HC11 board question-
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Tue, 20 May 1997 13:14:52 GMT
Original-From: 
Fred G. Martin <FREDM@MEDIA.stopspammersMIT.EDU>
Viewed: 
1868 times
  
w/o the ds1233, the contents of the ram will become corrupted during
power-up or power-down of the 6811.

an r/c could protect during power-up, but wouldn't reset the 6811
during power down.  remember it's still trying to execute code as
system voltage falls off.

-fred

I was wondering about the DS1233 EconoReset thingy- what would happen if it
wasn't there and reset was just tied high or through a RC delay to high? Does
the DS1233 just add to 'reset stability' or is it important to keep reset fro • m
going high until after a certain 'settling period' for the MOD A/B bits? If
it wasn't there, is the behavior undefined, flaky, or not-affected, or what?

Thanks for any replies!

John




Message is in Reply To:
  Generic 68HC11 board question-
 
Howdy- I was wondering about the DS1233 EconoReset thingy- what would happen if it wasn't there and reset was just tied high or through a RC delay to high? Does the DS1233 just add to 'reset stability' or is it important to keep reset from going (...) (28 years ago, 20-May-97, to lugnet.robotics.handyboard)

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