w78e516b Winbond Electronics Corp America, w78e516b Datasheet - Page 36

• Manufacturer Part Number: w78e516b
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

READ_VERIFY_64K:
;******************************************************************************
;* PROGRAMMING COMPLETLY, SOFTWARE RESET CPU
;******************************************************************************
ERROR_64K:
CJNE R2, #0H, READ_VERIFY_64K
INC R1
MOV SFRAH, R1
MOV SFRAL, R2
MOV TCON, #10H
MOV PCON, #01H
INC R2
MOVX A, @DPTR
INC DPTR
CJNE A, SFRFD, ERROR_64K
CJNE R1, #0H, READ_VERIFY_64K
MOV CHPENR, #87H
MOV CHPENR, #59H
MOV CHPCON, #83H
DJNZ R4, UPDATE_64K
.
.
.
.
; SFRAL (C4H) = LOW ADDRESS
; TCON = 10H, TR0 = 1, GO
; CHPENR = 87H
; CHPENR = 59H
; CHPCON = 83H, SOFTWARE RESET.
; IF ERROR OCCURS, REPEAT 3 TIMES.
; IN-SYSTEM PROGRAMMING FAIL, USER'S PROCESS TO DEAL WITH IT.
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Publication Release Date: April 22, 2008
W78E516B
Revision A12