Datasheet

CHAPTER 16 FLASH MEMORY
User’s Manual U18172EJ3V0UD
249
An example of a program that shifts the mode to normal mode is shown below.
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;START
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MOV FLCMD,#00H ; Clear FLCMD register
ModeOffLoop:
MOV PFS,#00H ; Clears flash status register
MOV PFCMD,#0A5H ; PFCMD register control
MOV FLPMC,#00H ; FLPMC register control (sets value)
MOV FLPMC,#0FFH ; FLPMC register control (inverts set value)
MOV FLPMC,#00H ; Sets normal mode via FLPMC register control (sets value)
BT PFS.0,$ModeOffLoop ; Checks completion of write to specific registers
; Repeats the same processing when an error occurs
; Restore the CPU clock to its setting before the self
; programming
MOV MK0,#INT_MK0 ; Restores interrupt mask flag
EI
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;END
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