MC68HC08AZ32A Datasheet, PDF (75/456 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
EEPROM
Low-Power Modes
thereafter. Once this security feature is armed, erase and program mode
are disabled for EEDIVHNVR and EEDIVLNVR. Modifications to the
EEDIVH and EEDIVL registers are also disabled. Therefore, care should
be taken before programming a value into the EEDIVHNVR.
5.7 Low-Power Modes
The WAIT and STOP instructions can put the MCU in low power-
consumption standby modes.
5.7.1 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.
5.7.2 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 — Rev 1.0
MOTOROLA
EEPROM
For More Information On This Product,
Go to: www.freescale.com
Technical Data
75