mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 64

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

FLASH Memory
Advance Information
64
Smart Programming Algorithm
Page Program/Margin Read Procedure
Note: This algorithm is mandatory for programming the FLASH.
Note: This page program algorithm assumes the page/s
to be programmed are initially erased.
Figure 4-2. Smart Programming Algorithm
N
INCREMENT ATTEMPT COUNTER
FLASH Memory
PROGRAMMING OPERATION
Y
ATTEMPT COUNT
EQUAL TO
fls
FAILED
PULSES
?
N
MC68HC908MR24
WRITE DATA TO SELECTED PAGE
INITIALIZE ATTEMPT COUNTER
MARGIN READ PAGE OF DATA
PROGRAMMING OPERATION
SET PGM BIT AND FDIV BITS
Freescale Semiconductor
PROTECT REGISTER
READ FLASH BLOCK
CLEAR MARGIN BIT
MARGIN READ DATA
Y
PROGRAM FLASH
CLEAR HVEN BIT
SET MARGIN BIT
CLEAR PGM BIT
SET HVEN BIT
WRITE DATA?
COMPLETE
WAIT t
WAIT t
WAIT t
WAIT t
EQUAL TO
TO 0
STEP
HVTV
HVD
VTP
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Rev. 4.1