MC68HC08AZ32A Datasheet, PDF (51/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Electrically Erasable Programmable Read-Only Memory (EEPROM)
2.7.4 Low-Power Modes
The WAIT and STOP instructions can put the MCU in low power-consumption standby modes.
2.7.4.1 Wait Mode
The WAIT instruction does not affect the EEPROM. It is possible to start the program or erase sequence
on the EEPROM and put the MCU in wait mode.
2.7.4.2 Stop Mode
The STOP instruction reduces the EEPROM power consumption to a minimum. The STOP instruction
should not be executed while a programming or erasing sequence is in progress.
If stop mode is entered while EELAT and EEPGM are set, the programming sequence will be stopped
and the programming voltage to the EEPROM array removed. The programming sequence will be
restarted after leaving stop mode; access to the EEPROM is only possible after the programming
sequence has completed.
If stop mode is entered while EELAT and EEPGM is cleared, the programming sequence will be
terminated abruptly.
In either case, the data integrity of the EEPROM is not guaranteed.
MC68HC08AZ32A Data Sheet, Rev. 2
Freescale Semiconductor
51