mc68hc908jl3mp Freescale Semiconductor, Inc, mc68hc908jl3mp Datasheet - Page 45

• Manufacturer Part Number: mc68hc908jl3mp
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

MC68H(R)C908JL3
MOTOROLA
Algorithm for programming
a row (32 bytes) of FLASH memory
NOTE:
The time between each FLASH address change (step 6 to step 6), or
the time between the last FLASH address programmed
to clearing PGM bit (step 6 to step 9)
must not exceed the maximum programming
time, t
This row program algorithm assumes the row/s
to be programmed are initially erased.
PROG
—
max.
Rev. 1.0
Figure 4-2. FLASH Programming Flowchart
FLASH Memory (FLASH)
1
2
3
4
5
6
7
Write any data to any FLASH address
within the row address range desired
Write data to the FLASH address
to be programmed
Wait for a time, t
Wait for a time, t
Wait for a time, t
Set HVEN bit
programming
Set PGM bit
Completed
this row?
N
PROG
nvs
pgs
9
10
11
12
Y
End of Programming
Wait for a time, t
Wait for a time, t
Clear HVEN bit
Clear PGM bit
FLASH Memory (FLASH)
FLASH Protection
nvh
rcv
Technical Data
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