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Altera_Forum
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12 years ago

Why it wants mofr M9K blocks

Cyclone 3 - device has 66 M9K blocks. I set up 16384x36 memory chunk. It is 589824 bits, with device having 608256 bits. However quartus says it is too much, and says device needs to have 72 blo...
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Altera_Forum
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12 years ago

and the explanation (as far as I know) is that the parity bit is available across 1024 locations (or spread across as 2*512,4*256). any depth > 1024 loses it. This parity bit itself is not used as parity in the first place! as far as I know.