Datasheet

CHAPTER 16 FLASH MEMORY
User’s Manual U18172EJ3V0UD
262
An example of a program that performs an internal verify in self programming mode is shown below.
• Internal verify 1
;----------------------------
;START
;----------------------------
FlashVerify:
MOV FLCMD,#01H ; Sets flash control command (internal verify 1)
MOV FLAPH,#07H ; Set the number of block for which internal verify is
; performed, to FLAPH (Example: Block 7 is specified here)
MOV FLAPL,#00H ; Sets FLAPL to 00H
MOV FLAPHC,#07H
MOV FLAPLC,#FFH ; Sets FLAPLC to FFH
MOV PFS,#00H ; Clears flash status register
MOV WDTE,#0ACH ; Clears & restarts WDT
HALT ; Self programming is started
MOV A,PFS
MOV CmdStatus,A ; Execution result is stored in variable
; (CmdStatus = 0: normal termination, other than 0: abnormal
; termination)
;----------------------------
;END
;----------------------------
• Internal verify 2
;----------------------------
;START
;----------------------------
FlashVerify:
MOV FLCMD,#02H ; Sets flash control command (internal verify 2)
MOV FLAPH,#07H ; Set the number of block for which internal verify is
; performed, to FLAPH (Example: Block 7 is specified here)
MOV FLAPL,#00H ; Sets FLAPL to the start address for verify (Example: Address
; 00H is specified here)
MOV FLAPHC,#07H
MOV FLAPLC,#20H ; Sets FLAPLC to the end address for verify (Example: Address
; 20H is specified here)
MOV PFS,#00H ; Clears flash status register
MOV WDTE,#0ACH ; Clears & restarts WDT
HALT ; Self programming is started
MOV A,PFS
MOV CmdStatus,A ; Execution result is stored in variable
; (CmdStatus = 0: normal termination, other than 0: abnormal
; termination)
;----------------------------
;END
;----------------------------