This flashchip has support for write-protected sectors, so added functionality to check those (and return unsupported if a sector is write-protected).
On my cart, sector 0 is write-protected, so I haven't actually tested writing to this flashchip (hence, preliminary support). In theory it should work, assuming a DSTT with this flashchip and no write-protected sectors can be found.
This flashchip has support for write-protected sectors, so added functionality to check those (and return unsupported if a sector is write-protected).
On my cart, sector 0 is write-protected, so I haven't actually tested writing to this flashchip (hence, preliminary support). In theory it should work, assuming a DSTT with this flashchip and no write-protected sectors can be found.
Datasheet can be found here: http://www.alldatasheet.com/datasheet-pdf/pdf/55477/AMD/AM29LV001BT-70EC.html