Fujitsu FR81S User Manual
CHAPTER 45: FLASH MEMORY
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : FLASH MEMORY
FUJITSU SEMICONDUCTOR CONFIDENTIAL
47
5.9.1. Flash Security On/Off Determination When Reset
Released
Flash security on/off determination when reset released is shown below.
The flash interface of this series reads two bytes from the flash security code area after reset is released. If
this value is 0x0001, security is turned on and access restrictions are imposed on subsequent accesses to
flash memory. For any other value, the security is turned off.
MB91520 Series
MN705-00010-1v0-E
1968