mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 119

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

MC68HC912DG128 — Rev 3.0
MOTOROLA
Freescale Semiconductor, Inc.
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Figure 7-1. Program Sequence Flow
Flash Memory
CLEAR PROGRAM PULSE COUNTER (n
NO
NO
DELAY BEFORE VERIFY
DELAY FOR DURATION
CLEAR MARGIN FLAG
OF PROGRAM PULSE
TURN OFF V
MARGIN FLAG
n
START PROG
TURN ON V
WRITE PPAGE
CLEAR ERAS
TO ADDRESS
CLEAR ENPE
DECREMENT
DONE PROG
WRITE DATA
PP
CLEAR LAT
SET ENPE
CORRECT?
(t
(t
n
SET LAT
DONE?
COUNTER
PPULSE
VPROG
SET?
DATA
PP
IS
= 0?
YES
YES
YES
YES
)
)
FP
FP
NO
NO
Programming the Flash EEPROM
LOCATION FAILED
PP
n
TO PROGRAM
)
INCREMENT
PP
LOCATION
CORRECT?
n
COUNTER
READ
PP
DATA
= 50?
YES
NO
YES
MARGIN FLAG
NO
Technical Data
SET
Flash Memory
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