MC68HC908AZ60 Datasheet, PDF (61/480 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Smart
Programming
Algorithm
9-flash-2
MOTOROLA
FLASH-2 Memory
FLASH Program/Margin Read Operation
Page Program/Margin Read Procedure
Note: This algorithm is mandatory for
programming the FLASH 2TS.
Note: This page program algorithm
assumes the page/s to be programmed
are initially erased.
Program FLASH 2TS
Set Interrupt Mask: SEI Instruction
(see note above)
Initialize Attempt Counter
to Zero
Set PGM Bit and FDIV bits
Read Flash Block Protect Register
Write Data to
Selected Page
Set HVEN Bit
Wait t_STEP
Clear HVEN Bit
Wait t_HVTV
Set MARGIN Bit
Wait t_VTP
Clear PGM Bit
Wait t_HVD
Margin Read Page of Data
Clear MARGIN Bit
Increment Attempt Counter
N
Attempt Count
Equal To
fls_PULSES?
Y
Programming Operation
Failed
N
Margin Read Data
Equal To
Write Data?
Y
Clear MARGIN Bit
Clear Interrupt Mask: CLI Instr.
(see note above)
Programming Operation
Complete
FLASH-2 Memory
MC68HC908AZ60 — Rev 2.0
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