Features Of Flash Security - Fujitsu F2MC-8FX Hardware Manual

28.7

Features of Flash Security

The flash security controller function prevents the contents of flash memory from being
read through external pins.
Features of Flash Security
Writing protection code "01
read/write access to flash memory from any external pin. Once flash memory has been protected, the
function cannot be unlocked until the chip erase command is executed.
Note that only addresses 5554
It is advisable to code the protection code at the end of flash programming. This is to avoid unnecessary
protection during programming.
Once flash memory has been protected, the chip erase operation is required before it can be reprogrammed.
For details, ask your local representative of Fujitsu.
" to a flash memory address (8000
H
and 2AAA can be read as exceptions.
H H
CHAPTER 28 256-KBIT FLASH MEMORY
) restricts access to flash memory, barring
H
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