Freescale Semiconductor, Inc.
Flash Memory
Flash EEPROM Registers
7.6 Flash EEPROM Registers
Bit 7
6
0
0
5
0
0
4
0
0
3
0
0
2
0
0
1
0
0
Bit 0
0
0
LOCK
RESET:
0
FEE32LCK/FEE28LCK — Flash EEPROM Lock Control Register
$00F4/$00F8
In normal modes the LOCK bit can only be written once after reset.
LOCK — Lock Register Bit
0 = Enable write to FEExxMCR register
1 = Disable write to FEExxMCR register
Bit 7
6
0
0
5
0
0
4
0
0
3
0
0
2
0
0
1
0
0
Bit 0
BOOTP
1
0
0
RESET:
FEE32MCR/FEE28MCR — Flash EEPROM Module Configuration Register
$00F5/$00F9
This register controls the operation of the Flash EEPROM array. BOOTP
cannot be changed when the LOCK control bit in the FEExxLCK register
is set or if ENPE in the FEExxCTL register is set.
BOOTP — Boot Protect
The boot blocks are located at $6000–$7FFF and $E000–$FFFF for
each Flash EEPROM module.
0 = Enable erase and program of 8K byte boot block
1 = Disable erase and program of 8K byte boot block
68HC(9)12D60 — Rev 4.0
MOTOROLA
Advance Information
Flash Memory
101
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MOTOROLA [ MOTOROLA ]
