MC68HC908LK24 MOTOROLA [Motorola, Inc], MC68HC908LK24 Datasheet - Page 75

• Manufacturer Part Number: MC68HC908LK24
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC908LJ24/LK24 — Rev. 2
MOTOROLA
Algorithm for programming
a row (64 bytes) of FLASH memory
NOTE:
The time between each FLASH address change (step 7 to step 7), or
the time between the last FLASH address programmed
to clearing PGM bit (step 7 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 4-3. FLASH Programming Flowchart
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
FLASH Memory (FLASH)
1
2
3
4
5
6
7
8
Read the FLASH block protect register
Write any data to any FLASH location
within the address range of the row to
be programmed
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
10
11
12
13
Y
End of programming
Wait for a time, t
Wait for a time, t
Clear HVEN bit
Clear PGM bit
FLASH Program Operation
FLASH Memory (FLASH)
nvh
rcv
Data Sheet
75