mc68hc912bd32 Freescale Semiconductor, Inc, mc68hc912bd32 Datasheet - Page 81

• Manufacturer Part Number: mc68hc912bd32
• Description: 16-bit Device Composed Of Standard On-chip Peripherals
• Manufacturer: Freescale Semiconductor, Inc

13-flash
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
CLEAR ERASE PULSE COUNTER (n
Flash EEPROM
Figure 8 Erase Sequence Flow
DELAY BEFORE VERIFY
NO
DELAY FOR DURATION
CLEAR MARGIN FLAG
WRITE TO ARRAY
OF ERASE PULSE
ARRAY ERASED
START ERASE
TURN OFF V
MARGIN FLAG
n
TURN ON V
CLEAR ENPE
DECREMENT
EP
CLEAR LAT
SET ERAS
SET ENPE
(t
SET LAT
(t
ERASED?
VERASE
COUNTER
EPULSE
n
ARRAY
SET?
EP
IS
YES
YES
YES
= 0?
)
)
FP
FP
NO
NO
ARRAY FAILED TO ERASE
n
EP
INCREMENT
EP
)
ERASED?
ARRAY
COUNTER
ARRAY
n
READ
EP
= 5?
YES
NO
MARGIN FLAG
YES
Erasing the Flash EEPROM
NO
MC68HC912BD32 Rev 1.0
SET
Flash EEPROM