MC68HC08AZ60A Datasheet, PDF (97/480 Pages) Motorola, Inc – Microcontrollers

EEPROM-2
Low-Power Modes
NOTE:
Once EEDIVSECD in the EE2DIVHNVR is programmed to 0 and after a
system reset, the EE2DIV security feature is permanently enabled
because the EEDIVSECD bit in the EE2DIVH is always loaded with 0
thereafter. Once this security feature is armed, erase and program mode
are disabled for EE2DIVHNVR and EE2DIVLNVR. Modifications to the
EE2DIVH and EE2DIVL registers are also disabled. Therefore, care
should be taken before programming a value into the EE2DIVHNVR.
6.7 Low-Power Modes
The WAIT and STOP instructions can put the MCU in low power-
consumption standby modes.
6.7.1 Wait Mode
The WAIT instruction does not affect the EEPROM-2. It is possible to
start the program or erase sequence on the EEPROM-2 and put the
MCU in wait mode.
6.7.2 Stop Mode
The STOP instruction reduces the EEPROM-2 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-2 array removed. The programming sequence will be
restarted after leaving stop mode; access to the EEPROM-2 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-2 is not guaranteed.
MC68HC08AZ60A — Rev 0.0
MOTOROLA
EEPROM-2
Advance Information
97