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Altera_Forum's avatar
Altera_Forum
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12 years ago

EPF10k10 ram blocks

Hi All, So I noticed that quartus 'optimizes' out any unused bits from a 256x8 block. In other words, if I only use 6 bits, it would state it used 1536 bits. Does that mean the remaining 256x2 ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Yeah, they're RAM blocks. The EPF10k10 is vintage / old / obsolete, take your pick, but only has 6144 bits of memory which is according to the manual organized as either 256x8, 512x4 etc. While you can merge them together, I want to know (and will soon find out, almost 5pm here!) whether or not it's possible to SPLIT them. So two instances of 256x4 should not take more than 1 memory block. Theoretically, at least. Quartus omits any unused bits from the resource count so I'm guessing / hoping those can be re-used...

-Mux