What I have is a 7493 configured to reset when the count reaches 12 or when outputs D and C go high. At other times, I want the 7493 to reset when the count reaches 10 or when outputs D and B go high. For that, I can directly connect D to one reset and the other reset could go to a double-pole, single-throw switch with the other two terminals of the switch going to B and C. I wanted the switch, however, to be made of digital logic so I only need ground a line to change from B--Reset to C--reset. -- Author: Martin McCormick INET: [EMAIL PROTECTED]
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