W77LE532_07 Datasheet, PDF (87/88 Pages) Winbond – 8-BIT MICROCONTROLLER

W77LE532/W77L532A
READ_VERIFY_64K:
MOV SFRAL, R2
; SFRAL = LOW ADDRESS
MOV TCON, #10H
; TCON = 10H, TR0 = 1,GO
MOV PCON, #01H
INC R2
MOVX A, @DPTR
INC DPTR
CJNE A, SFRFD,ERROR_64K
CJNE R2, #0H, READ_VERIFY_64K
INC R1
MOV SFRAH, R1
CJNE R1, #0H, READ_VERIFY_64K
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU
;******************************************************************************
MOV TA, #AAH
MOV TA, #55H
MOV CHPCON, #83H ; SOFTWARE RESET. CPU will restart from APFLASH0
ERROR_64K:
DJNZ R4,UPDATE_64K ; IF ERROR OCCURS, REPEAT 3 TIMES.
.
; IN-SYST PROGRAMMING FAIL, USER'S PROCESS TO DEAL WITH IT.
.
.
.
- 87 -
Publication Release Date: February 1, 2007
Revision A7