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EEPROM Help needed

Pje
Associate III

Hi All,

Please I need some explenations regarding EEPROM (with SPI interface) .The SPI is working I can see the signals on my LA ,

However I have some very basic questions regarding the EEPROM 256Kx8 page size according to the datasheet is 64 bytes per page .My questions are reality very basic however googling did not realy help .

1- does the 16 bit addresses start at 0x0000 and then incerement by 1 so next will be 0x0001 and so on until byte 63 which is then the address 0x03F 

2- does the 2nd page then start at 0x0040 ? and at  0x00FF I would be at the end of page 4 ?

3- is there some visual repersentation that I can view to see this memory map clearly in my head ?

4- If I write 10 bytes in one go start at address x do I need  to have some delay between the write of the bytes or can I just clock then out one after the other the datasheet mention something about 5mSec write delay does this delay means beween bytes?

I applogize for these elementary questions however it is my first time working with an EEPROM 

Any help hints would be appreciated 

Regards 

 

 

 

 

10 REPLIES 10
Pje
Associate III

It is the question because the Protocol explicitly requires the DATA to go into the External EEPROM and the designer did exactly that by including the EEPROM on the HW .The descision is not mine to solder A or B the protocol requires me to solder B