If I use the S25FL016K SPI Flash as my boot code storage, how can I be sure the boot code can be read after a system reset? - KBA203735

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Question:

 If I use the S25FL016K SPI Flash as my boot code storage, how can I be sure the boot code can be read after a system reset? 

 

Answer:

Since the S25FL016K SPI Flash device does not have a hardwired reset input, the SPI Flash device is not able to detect that a reset has occurred. It will continue to perform the existing operation until it has successfully completed and returns to read mode. For this application, Cypress would recommend using the S25FL-S device family with the reset input option instead of the S25FL-K device family.