mc9s08sh8mwjr Freescale Semiconductor, Inc, mc9s08sh8mwjr Datasheet - Page 50

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mc9s08sh8mwjr

Manufacturer Part Number
mc9s08sh8mwjr
Description
S08sh 5-volt 8-bit Microcontrollers With Sci, Spi, I2c, Adc And Analog Comparators
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Chapter 4 Memory
The first byte of a series of sequential bytes being programmed in burst mode will take the same amount
of time to program as a byte programmed in standard mode. Subsequent bytes will program in the burst
program time provided that the conditions above are met. In the case the next sequential address is the
beginning of a new row, the program time for that byte will be the standard time instead of the burst time.
This is because the high voltage to the array must be disabled and then enabled again. If a new burst
command has not been queued before the current command completes, then the charge pump will be
disabled and high voltage removed from the array.
50
PROGRAM FLOW
FLASH BURST
Figure 4-3. FLASH Burst Program Flowchart
YES
MC9S08SH32 Series Data Sheet, Rev. 2
WRITE COMMAND (0x25) TO FCMD
0
TO BUFFER ADDRESS AND DATA
AND CLEAR FCBEF (Note 2)
NEW BURST COMMAND ?
WRITE TO FCDIV (Note 1)
TO LAUNCH COMMAND
WRITE 1 TO FCBEF
WRITE TO FLASH
CLEAR ERROR
FACCERR ?
FACCERR ?
FPVIO OR
FCBEF ?
FCCF ?
START
DONE
PRELIMINARY
1
1
NO
1
NO
YES
0
0
Note 2: Wait at least four bus cycles before
Note 1: Required only once after reset.
ERROR EXIT
checking FCBEF or FCCF.
Freescale Semiconductor

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