The SFDP standard defines the structure of the SFDP database within the memory device and methods used to read its data.
The JEDEC-defined header with Parameter ID FF00h and the related Basic Parameter Table is mandatory. This header and table provide basic information for a Serial Peripheral Interface (SPI) protocol memory. Additional headers and tables are optional.
The read command protocol using various I/O modes and standard clock rate are specified. The device electrical parameters are not specified.