FreeCalypso > hg > freecalypso-schem2
changeset 91:711358516b55
venus/doc/MEMIF-fixed-2.8V: update for new MCP
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 11 Dec 2021 03:34:04 +0000 |
| parents | e8ce3b688723 |
| children | 148fab6e07e3 |
| files | venus/doc/MEMIF-fixed-2.8V |
| diffstat | 1 files changed, 4 insertions(+), 6 deletions(-) [+] |
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--- a/venus/doc/MEMIF-fixed-2.8V Fri Dec 10 23:00:44 2021 +0000 +++ b/venus/doc/MEMIF-fixed-2.8V Sat Dec 11 03:34:04 2021 +0000 @@ -42,9 +42,7 @@ When it comes to the flash+RAM MCP, we are being deliberately non-innovative: rather than explore potentially suitable parts on our own, we copy specific -parts that have been used successfully in historical Calypso designs. On -FCDEV3B we copied Spansion S71PL129NC0HFW4B from Pirelli DP-L10, and the current -plan for FC Venus is to copy S71PL064JA0BFW0B (smaller footprint and no reset -complications like on FCDEV3B) from the TR-800 module. All of our potential MCP -choices from Spansion S71PL-J and S71PL-N families require a single supply -between 2.7 and 3.1 V, hence 2.8V MEMIF. +parts that have been used successfully in historical Calypso designs. Our PCB +footprint for flash+RAM MCP is compatible with Spansion S71PL064J, S71PL129J +and S71PL129N families, and all of our potential MCP choices require a single +supply between 2.7 and 3.1 V, hence 2.8V MEMIF.