MC68HC12 Datasheet, PDF (129/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

EEPROM Memory
EEPROM Control Registers
FPOPEN — Opens the Flash Block for Program or Erase
0 = The whole Flash array is protected.
1 = The whole Flash array is enable for program or erase.
Loaded from SHADOW word at reset. Read anytime. Write anytime
in special modes (SMODN=0). Write once ’0’ is allowed in normal
mode.
NOTE:
EESWAI — EEPROM Stops in Wait Mode
0 = The module is not affected during WAIT mode
1 = The module ceases to be clocked during WAIT mode
Read and write anytime.
The EESWAI bit should be cleared if the WAIT mode vectors are
mapped in the EEPROM array.
PROTLCK — Block Protect Write Lock
0 = Block protect bits and bulk erase protection bit can be written
1 = Block protect bits are locked
Read anytime. Write once in normal modes (SMODN = 1), set and
clear any time in special modes (SMODN = 0).
DMY— Dummy bit
Read and write anytime.
MC68HC912DT128A — Rev 4.0
MOTOROLA
EEPROM Memory
Technical Data
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