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Altera_Forum
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15 years ago

VHDL HC237 3-8 Decoder with latches

Hello, I'm trying to write the VHDL code for chip HC237. I think I have something written that will work for the most part, but my problem is in dealing with pin GL. Basically what this chip does i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

All I'm trying to get process 2 to do is act like a storage latch. When GL is low everything should operate normally but when GL is high it should give an output based on what the inputs were when GL was low. I'm trying to store the inputs of I (A,B,C) into 3 separate variables when GL is low so that when it is high I can load those variables back into I and run the case statement. I'm not sure how exactly to go about that however.