MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 103

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

Flash Memory
7.9 Erasing the Flash EEPROM
7.10 Stop or Wait Mode
Technical Data
103
CAUTION:
The following sequence demonstrates the recommended procedure for
erasing any of the Flash EEPROM array.
When stop or wait commands are executed, the MCU puts the Flash
EEPROM in stop or wait mode. In these modes the Flash module will
cease erasure or programming immediately.
It is advised not to enter stop or wait modes when program or erase
operation of the Flash array is in progress.
1. Set the ERAS bit.
2. Write to any valid aligned word address in the Flash array. The
3. Wait for a time, t
4. Set the HVEN bit.
5. Wait for a time, t
6. Clear the ERAS bit.
7. Wait for a time, t
8. Clear the HVEN bit.
9. After time, t
Freescale Semiconductor, Inc.
For More Information On This Product,
data written and the address written are not important. The boot
block will be erased only if the control bit BOOTP is negated.
mode again.
Go to: www.freescale.com
RCV
Flash Memory
(min 1µs), the memory can be accessed in read
NVS
ERAS
NVHL
(min. 10µs).
(8ms).
(min. 100µs).
MC68HC912D60A — Rev 3.0
MOTOROLA