Gamecards: Difference between revisions
Specify cards only get 3.3V on VCC when CFG9_CARDSTATUS enables it |
m Fix Macronix MX25L1021E datasheet link rot |
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===SPI flash=== | ===SPI flash=== | ||
Savegame SPI flash transfers use CPOL=1 and CPHA=1. So far, only one savegame FLASH chip has been identified. The chip identifies as a 0xC22211. The JEDEC manufacturer ID is Macronix, and despite the chip label saying 25L1001, the JEDEC ID matches the MX25L1021E. Datasheet at:<br> | Savegame SPI flash transfers use CPOL=1 and CPHA=1. So far, only one savegame FLASH chip has been identified. The chip identifies as a 0xC22211. The JEDEC manufacturer ID is Macronix, and despite the chip label saying 25L1001, the JEDEC ID matches the MX25L1021E. Datasheet at:<br> | ||
[https://www.macronix.com/Lists/Datasheet/Attachments/8796/MX25L1021E,%203V,%201Mb,%20v1.3.pdf Macronix (Rev. 1.3, nov. 11, 2013)] <br> | |||
http://www.beilenet.com/download/MX25L1021E,%203V,%201Mb,%20v0.01.pdf | [https://web.archive.org/web/20160307235354/http://www.beilenet.com/download/MX25L1021E,%203V,%201Mb,%20v0.01.pdf Old version mirror (Rev. 0.01, apr. 07, 2010)] <br> | ||
However, the MX25L1021E doesn't support the 4 bit wide transmission that the 3DS uses to talk to the SPI flash. It is thus likely that this is a custom flash chip. | However, the MX25L1021E doesn't support the 4 bit wide transmission that the 3DS uses to talk to the SPI flash. It is thus likely that this is a custom flash chip. | ||