MC68HC912BL16 Datasheet, PDF(45/128 Page) Freescale Semiconductor, Inc – 16-Bit Microcontroller

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MC68HC912BL16 Datasheet, PDF (45/128 Pages) Freescale Semiconductor, Inc – 16-Bit Microcontroller

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Freescale Semiconductor, Inc.

START ERASE

TURN ON VFP

CLEAR MARGIN FLAG

CLEAR ERASE PULSE COUNTER (nEP)

SET ERAS

SET LAT

WRITE TO ARRAY

SET ENPE

DELAY FOR DURATION

OF ERASE PULSE

(tEPULSE)

CLEAR ENPE

DELAY BEFORE VERIFY

(tVERASE)

IS

MARGIN FLAG

SET?

NO

YES

DECREMENT

nEP COUNTER

SET

MARGIN FLAG

INCREMENT

nEP COUNTER

READ

ARRAY

ARRAY

ERASED?

NO

YES

NO

nEP = 0?

YES

ARRAY

ERASED?

NO

YES

CLEAR LAT

nEP = 5?

NO

YES

TURN OFF VFP

ARRAY ERASED ARRAY FAILED TO ERASE

Figure 8 Erase Sequence Flow

MC68HC912BL16TS/D

For More Information On This Product,

45

Go to: www.freescale.com

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