XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 115

• Manufacturer Part Number: XC912BC32CFU8
• Description: M68HC12B Family Data Sheet
• Manufacturer: Motorola Semiconductor Products

M68HC12B Family — Rev. 8.0
MOTOROLA
CLEAR ERASE PULSE COUNTER (n
FLASH EEPROM
Figure 8-6. Erase Sequence Flow
NO
DELAY BEFORE VERIFY
DELAY FOR DURATION
CLEAR MARGIN FLAG
WRITE TO ARRAY
OF ERASE PULSE
ARRAY ERASED
TURN OFF V
START ERASE
n
MARGIN FLAG
CLEAR ENPE
DECREMENT
TURN ON V
EP
CLEAR LAT
SET ERAS
SET ENPE
(t
SET LAT
(t
n
ERASED?
VERASE
COUNTER
EPULSE
EP
ARRAY
SET?
IS
= 0?
YES
YES
YES
)
)
FP
FP
NO
NO
EP
ARRAY FAILED TO ERASE
)
n
INCREMENT
EP
ERASED?
n
ARRAY
COUNTER
READ
ARRAY
EP
= 5?
YES
NO
Erasing the FLASH EEPROM
YES
NO
MARGIN FLAG
SET
FLASH EEPROM
Data Sheet
115