Need URGENT help for designing an up down counter!

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Thread Starter


Joined May 4, 2015
Hey there.
I am designing an up/down counter system for a university project and need to start the counter at a certain number-69 and it must not go higher than said value. The counter must also be able to count down to zero and stop when it gets there.
The counter must start at 69, be able to ccount down to zero and no further and be able to count up to 69 when it has counted down.
It is a 74192 counter to a 7447 decoder.
Below is what i have so far.multisim pic.png
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