Freescale Semiconductor, Inc.
EEPROM-2
Functional Description
NOTE: It is recommended that the internal RC oscillator be used to drive the
internal charge pump for applications that have a bus frequency of less
than 8 MHz.
EEOFF — EEPROM Power Down Bit
This read/write bit disables the EEPROM module for lower power
consumption. Any attempts to access the array will give unpredictable
results. Reset clears this bit.
1 = Disable EEPROM array
0 = Enable EEPROM array
NOTE: The EEPROM requires a recovery time, tEEOFF, to stabilize after clearing
the EEOFF bit.
EERAS1 and EERAS0 — Erase Bits
These read/write bits set the erase modes. Reset clears these bits.
Table 7-3. EEPROM Program/Erase Mode Select
EEBPx
EERAS1
EERAS0
MODE
Byte program
Byte erase
0
0
0
1
1
X
0
1
0
1
X
0
0
Block erase
Bulk erase
0
1
No erase/program
X = Don’t care
EELAT — EEPROM Latch Control Bit
This read/write bit latches the address and data buses for
programming the EEPROM array. EELAT cannot be cleared if
EEPGM is still set. Reset clears this bit.
1 = Buses configured for EEPROM programming
0 = Buses configured for normal read operation
MC68HC908AS60 — Rev. 1.0
Technical Data
EEPROM-2
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