MC68HC08AZ32A Datasheet, PDF (68/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

EEPROM
Technical Data
68
Freescale Semiconductor, Inc.
EERAS1 and EERAS0 — Erase/Program Mode Select Bits
These read/write bits set the erase modes. Reset clears these bits.
Table 5-3. EEPROM Program/Erase Mode Select
EEBPx
0
0
0
0
1
X = don’t care
EERAS1
0
0
1
1
X
EERAS0
0
1
0
1
X
MODE
Byte Program
Byte Erase
Block Erase
Bulk Erase
No Erase/Program
EELAT — EEPROM Latch Control
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 or erase
operation
0 = Buses configured for normal operation
AUTO — Automatic Termination of Program/Erase Cycle
When AUTO is set, EEPGM is cleared automatically after the
program/erase cycle is terminated by the internal timer.
(See note D for EEPROM Programming on page 64, EEPROM
Erasing on page 65 and EEPROM Memory Characteristics on
page 435)
1 = Automatic clear of EEPGM is enabled
0 = Automatic clear of EEPGM is disabled
EEPGM — EEPROM Program/Erase Enable
This read/write bit enables the internal charge pump and applies the
programming/erasing voltage to the EEPROM array if the EELAT bit
is set and a write to a valid EEPROM location has occurred. Reset
clears the EEPGM bit.
1 = EEPROM programming/erasing power switched on
0 = EEPROM programming/erasing power switched off
MC68HC08AZ32A — Rev 1.0
EEPROM
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