Huh ECP5's embedded block RAM is an annoying shape. It's 18Kbits of ram, and you can configure it to operate in units of 1, 2, 4, 9 or 18 bits.
However, if you configure it for 1, 2 or 4 bit data width, you only get to use 16384 of the bits. The remaining 2048 bits are stranded.
On the flip side 9 and 18-bit widths are awkward, because there's no masked writes, you have to overwrite 9 or 18 bits at once.
Dave Anderson
npub1mt…xwant
2024-08-17 05:59:35 UTC
Author Public Key
npub1mtg38agwglttl7melxnfqphlm95uymnrdedw62h9j7cyquynza0szxwantSeen on
wss://relay.momostr.pinkPublished at
2024-08-17 05:59:35 UTCEvent JSON
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