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Altera_Forum's avatar
Altera_Forum
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14 years ago

why the on-chip dual clock ram has no read signal?

I add a on-chip dual clock ram with on-chip memory? but it has no read signal for two port,why? and how to read the ram with this circumstance? ??write high for write,and low for r...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

imagine that when you write data into sram.

you specify the address, but in some case you don't want write data.

therefore you need write_enable signal.

how about read sequence?

read data appear as you specify address.

if you don't want to use the data?

just ignore it.

that is why you don't need read_enable signal.