NEC 78K0S/KB1+ User Manual page 321

;---------------------------------------------------------------------
; Processing to shift to normal mode
;---------------------------------------------------------------------
ModeOffLoop:
<R> MOV
MOV
MOV
MOV
MOV
MOV
BT
<R>
MOV
MOV
EI
RET
CHAPTER 19 FLASH MEMORY
FLCMD,#00H ; Clears FLCMD register
PFS,#00H ; Clears flash status register
PFCMD,#0A5H ; PFCMD register control
FLPMC,#00H ; FLPMC register control (sets value)
FLPMC,#0FFH ; FLPMC register control (inverts set value)
FLPMC,#00H ; Sets normal mode via FLPMC register control (sets value)
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, after normal completion of the specific
; sequence
MK0,#INT_MK0 ; Restores interrupt mask flag
MK1,#INT_MK1
User's Manual U17446EJ3V1UD
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