I have successfully interfaced to my winbond chip via the bus pirate. I have successfully executed the chip identifier command and chip erase commands via spi, i would like to read and delete the chips security registers.
This is the command set i push via spi with bus pirate for read: datasheet: The instructions is initiated by driving the /CS pin low and then shifting the instruction code "48h" followed bya a 24-bit address(A23-A0) and eight "dummy clocks into the DI pin.
What i send: [0x48 0x00 0x00 0x00 0x00 0x00 r:256] <- read security register(read 256 bytes)
Each security register is 256 bytes in size and there are aparrantly 4 though i can only see 3 in the datasheet.
My questions is how would i read each security register 256 bytes at a time?
Section 8.2.33 is the reference and the the datasheet is here http://www.nexflash.com/NR/rdonlyres/A5B6C30B-C174-43CF-867E-E1A2F371A07C/0/W25Q128FV.pdf