Data Flash Section in MPC5746C

[mandarpande]

Hi,

In #MPC5746C reference manual, Table 2-4 describes address 0x00F90000 to 0x00FAFFFF as being a series of  8 16kB Data Flash blocks. 

In the same reference manual, Table 3-2 describes  address 0x00F90000 to 0x00FAFFFF as being a series of 8 16kB Code Flash blocks.

Can someone clear up this ambiguity?

Regards,

Mandar

[davidtosenovjan]

These are Code Flash blocks.

These are actually “Flexible partitions for boot and EEPROM”, that why apparently Table 2-4 mentions it as “Data Flash” even though in fact it is “Code Flash”.

In principle EEPROM emulation can be done with the rest of Code Flash as well, but 16KB blocks are suitable for EEPROM emulation because they are small and its endurance (i.e. number is repeated P/E cycles the block is capable to withstand) is high.

I will report documentation error in Table 2-4. Thanks for pointing that out.