Fujitsu 8FX Hardware Manual page 582

CHAPTER 26 DUAL OPERATION FLASH MEMORY
26.6 Operations
■ Operation during Programming/Erasing
It is prohibited to program data to the Flash memory within an interrupt routine when an
interrupt occurs during Flash memory programming/erasing.
When two or more program/erase routines exist, wait for one program/erase routine to finish
before executing another program/erase routine.
While data is being written to or erased from the Flash memory, state transition in the current
mode (clock mode or standby mode) is prohibited. Ensure that programming data to or erasing
data from the Flash memory ends before state transition occurs.
560 FUJITSU SEMICONDUCTOR LIMITED
MB95630H Series
MN702-00009-2v0-E