AN1836 Motorola / Freescale Semiconductor, AN1836 Datasheet - Page 16
AN1836
Manufacturer Part Number
AN1836
Description
FLASH Programming for Motorola MC68HC912 Microcontrollers
Manufacturer
Motorola / Freescale Semiconductor
Datasheet
1.AN1836.pdf
(32 pages)
Application Note
16
CLEAR ERASE PULSE COUNTER (n
NO
Figure 8. Erasing Sequence Flowchart
DELAY BEFORE VERIFY
DELAY FOR DURATION
CLEAR MARGIN FLAG
WRITE TO ARRAY
OF ERASE PULSE
ARRAY ERASED
TURN OFF V
START ERASE
MARGIN FLAG
n
TURN ON V
CLEAR ENPE
DECREMENT
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
YES
NO
MARGIN FLAG
SET
MOTOROLA
AN1836
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