W78E516B
READ_VERIFY_64K:
MOV SFRAL,R2
MOV TCON,#10H
MOV PCON,#01H
INC R2
; SFRAL(C4H) = LOW ADDRESS
; TCON = 10H, TR0 = 1,GO
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 CHPENR,#87H
MOV CHPENR,#59H
MOV CHPCON,#83H
; CHPENR = 87H
; CHPENR = 59H
; CHPCON = 83H, SOFTWARE RESET.
ERROR_64K:
DJNZ R4,UPDATE_64K ; IF ERROR OCCURS, REPEAT 3 TIMES.
; IN-SYSTEM PROGRAMMING FAIL, USER'S PROCESS TO DEAL WITH IT.
.
.
.
.
Winbond Electronics (H.K.) Ltd.
Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.
2727 N. First Street, San Jose,
CA 95134, U.S.A.
Headquarters
Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792766
http://www.winbond.com.tw/
TEL: 408-9436666
FAX: 408-5441798
Voice & Fax-on-demand: 886-2-27197006
Taipei Office
11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-27190505
FAX: 886-2-27197502
Note: All data and specifications are subject to change without notice.
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WINBOND [ WINBOND ]
