NEC 78K0S/KA1+ User Manual page 317

; Setting internal verify command
FlashVerify:
MOVW HL,#WriteAdr
MOV FLCMD,#01H
MOV A,H
MOV FLAPH,A
MOV A,L
MOV FLAPL,A
MOV A,D
MOV FLAPHC,A
MOV A,E
MOV FLAPLC,A
CALL !ModeOn
; Execution of internal verify command
MOV PFS,#00H
MOV WDTE,#0ACH
HALT
MOV A,PFS
CMP A,#00H
BNZ $StatusError
CALL !ModeOff
BR StatusNormal
;---------------------------------------------------------------------
;END (abnormal termination processing); Perform processing to shift to
normal mode in order to return to normal processing
;---------------------------------------------------------------------
StatusError:
;---------------------------------------------------------------------
;END (normal termination processing)
;---------------------------------------------------------------------
StatusNormal:
;---------------------------------------------------------------------
;Processing to shift to self programming mode
;---------------------------------------------------------------------
ModeOn:
MOV MK0,#11111111B ; Masks all interrupts
MOV MK1,#11111111B
CHAPTER 18 FLASH MEMORY
; Sets verify address
; Sets flash control command (internal verify)
; Sets verify start address
; Sets verify start address
; Sets verify end address
; Sets verify end address
; Shift to self programming mode
; Clears flash status register
; Clears & restarts WDT
; Self programming is started
; Checks internal verify error
; Performs abnormal termination processing when an error occurs
; Shift to normal mode
User's Manual U16898EJ3V0UD
317