AN2183 Freescale Semiconductor / Motorola, AN2183 Datasheet - Page 17
AN2183
Manufacturer Part Number
AN2183
Description
Using FLASH as EEPROM on the MC68HC908GP32
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2183.pdf
(48 pages)
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AN2183
MOTOROLA
Figure 7. Write FlashEE RAM Routine Software Flow Diagram
PROGRAM FLASH
ROUTINE IN RAM
EXECUTE
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
N
AND WRITE TO POINTED PAGE
SOURCE AND DESTINATION
SOURCE TO DESTINATION
COPY DATA BYTE FROM
SET HVEN BIT IN FLCR
SET PGM BIT IN FLCR,
AND WAIT 30-40 s
CLEAR HVEN BIT
AND WAIT > 5 s
AND WAIT > 5 s
AND WAIT > 1 s
CLEAR PGM BIT
SIZE COUNTER
READ FLBPR
WAIT > 10 s,
DECREMENT
BLOCK SIZE
POINTERS
COUNTER
ADVANCE
IS BLOCK
IN FLCR
IN FLCR
ZERO?
Y
PROCESS
EXIT
Application Note
Summary
17
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