NEC 78K0S/KA1+ User Manual page 303

An example of a program when the command execution time (from erasure to black check) should be minimized in
self programming mode is shown below.
;---------------------------------------------------------------------
;START
;---------------------------------------------------------------------
MOV MK0,#11111111B
MOV MK1,#11111111B
DI
ModeOnLoop:
MOV PFS,#00H
MOV PFCMD,#0A5H
MOV FLPMC,#01H
MOV FLPMC,#0FEH
MOV FLPMC,#01H
MOV A,PFS
CMP A,#00H
BNZ $ModeOnLoop
FlashBlockErase:
MOV FLCMD,#03H
MOV FLAPH,#07H
MOV FLAPL,#00H
MOV FLAPHC,#07H
MOV FLAPLC,#00H
MOV WDTE,#0ACH
HALT
MOV A,PFS
CMP A,#00H
BNZ $StatusError
FlashBlockBlankCheck:
MOV FLCMD,#04H
MOV FLAPH,#07H
MOV FLAPL,#00H
CHAPTER 18 FLASH MEMORY
; Masks all interrupts
; 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 flash control command (block erase)
; Sets number of block to be erased (block 7 is specified
; here)
; Fixes FLAPL to "00H"
; Sets erase block compare number (same value as that of
; FLAPH)
; Fixes FLAPLC to "00H"
; Clears & restarts WDT
; Self programming is started
; Checks erase error
; Performs abnormal termination processing when an error
; occurs.
; Sets flash control command (block blank check)
; Sets number of block for blank check (block 7 is specified
; here)
; Fixes FLAPL to "00H"
User's Manual U16898EJ3V0UD
303