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| MC68HC912BD32 Datasheet, PDF (79/292 Pages) Freescale Semiconductor, Inc – Advance Information | |||
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11-ï¬ash
Freescale Semiconductor, Inc.
Flash EEPROM
Programming the Flash EEPROM
START PROG
TURN ON VFP
CLEAR MARGIN FLAG
CLEAR PROGRAM PULSE COUNTER (nPP)
CLEAR ERAS
SET LAT
WRITE DATA
TO ADDRESS
SET ENPE
DELAY FOR DURATION
OF PROGRAM PULSE
(tPPULSE)
CLEAR ENPE
DELAY BEFORE VERIFY
(tVPROG)
SET
MARGIN FLAG
IS
MARGIN FLAG
SET?
NO
YES
INCREMENT
nPP COUNTER
READ
LOCATION
DECREMENT
nPP COUNTER
NO
nPP = 0?
YES
DATA
CORRECT?
NO
YES
nPP = 50?
NO
DATA
CORRECT?
YES
CLEAR LAT
YES
NO
LOCATION FAILED
TO PROGRAM
GET NEXT
ADDRESS/DATA
NO
DONE?
YES
TURN OFF VFP
DONE PROG
Figure 7 Program Sequence Flow
Flash EEPROM
For More Information On This Product,
Go to: www.freescale.com
MC68HC912BD32 Rev 1.0
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