NEC 78K0S/KU1+ User Manual page 255

An example of a program when the command execution time (from write to internal verify) should be minimized in
self programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
MOV MK0,#11111111B
MOV FLCMD,#00H
DI
ModeOnLoop:
MOV PFS,#00H
MOV PFCMD,#0A5H
MOV FLPMC,#01H
MOV FLPMC,#0FEH
MOV FLPMC,#01H
NOP
HALT
BT PFS.0,$ModeOnLoop
FlashWrite:
MOVW HL,#DataAdrTop
MOVW DE,#WriteAdr
FlashWriteLoop:
MOV FLCMD,#05H
MOV A,D
MOV FLAPH,A
MOV A,E
MOV FLAPL,A
MOV A,[HL]
MOV FLW,A
MOV WDTE,#0ACH
HALT
MOV A,PFS
CMP A,#00H
BNZ $StatusError
INCW HL
MOVW AX,HL
CMPW AX,#DataAdrBtm
BNC $FlashVerify
CHAPTER 16 FLASH MEMORY
; Masks all interrupts
; Clears FLCMD register
; Configure settings so that the CPU clock ≥ 1 MHz
; Clears flash status register
; PFCMD register control
; FLPMC register control (sets value)
; FLPMC register control (inverts set value)
; Sets self programming mode with FLPMC register control
; (sets value)
; Checks completion of write to specific registers
; Repeats the same processing when an error occurs.
; Sets address at which data to be written is located
; Sets address at which data is to be written
; Sets flash control command (byte write)
; Sets address at which data is to be written
; Sets address at which data is to be written
; Sets data to be written
; Clears & restarts WDT
; Self programming is started
; Checks write error
; Performs abnormal termination processing when an error
; occurs.
; address at which data to be written is located + 1
; Performs internal verify processing
; if write of all data is completed
User's Manual U18172EJ2V0UD
255