AN2183 Freescale Semiconductor / Motorola, AN2183 Datasheet - Page 17

• Manufacturer Part Number: AN2183
• Description: Using FLASH as EEPROM on the MC68HC908GP32
• Manufacturer: Freescale Semiconductor / Motorola

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