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Altera_Forum
Honored Contributor
13 years agodifferent width fifo
So i have a Dual clock FIFO with different input and output width. My input is 32bits and my output is 128. I was wondering what would happen if at some point when there is only 32, 64 or 96 bits o...
Altera_Forum
Honored Contributor
13 years agoI think you have to be careful. Are you using lookahead mode? It shouldnt clear any data from the output if rdempty is asserted. So it probably isnt zero padded, its probably just padded with whatever the old memory contents were, and wont move the memory pointer forward. without the underflow protection, the memory pointer would move. So you havent actually taken a value out of the FIFO.