mc68hc908jl16 Freescale Semiconductor, Inc, mc68hc908jl16 Datasheet - Page 37

• Manufacturer Part Number: mc68hc908jl16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
NOTES:
Algorithm for Programming
a Row (32 Bytes) of FLASH Memory
The time between each FLASH address change (step 7to step 7),
or the time between the last FLASH address programmed
to clearing PGM bit (step 6 to step 10)
must not exceed the maximum programming
time, t
This row program algorithm assumes the row/s
to be programmed are initially erased.
PROG
max.
Figure 2-4. FLASH Programming Flowchart
MC68HC908JL16 Data Sheet, Rev. 1.1
2
1
3
4
5
6
7
8
READ THE FLASH BLOCK PROTECT REGISTER
WITHIN THE ROW ADDRESS RANGE DESIRED
WRITE ANY DATA TO ANY FLASH ADDRESS
9
WRITE DATA TO THE FLASH ADDRESS
WAIT FOR A TIME, t
TO BE PROGRAMMED
WAIT FOR A TIME, t
WAIT FOR A TIME, t
PROGRAMMING
SET HVEN BIT
SET PGM BIT
COMPLETED
THIS ROW?
N
PROG
10
11
12
13
NVS
PGS
Y
END OF PROGRAMMING
WAIT FOR A TIME, t
WAIT FOR A TIME, t
CLEAR HVEN BIT
CLEAR PGM BIT
FLASH Memory
NVH
RCV
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