W78LE516 Datasheet, PDF (31/31 Pages) Winbond – 8-BIT MICROCONTROLLER

Preliminary W78LE516
MOV R1,#0H
MOV SFRAH,R1
MOV SFRCN,#00H
; Target high byte address
; SFRAH, Target high address
; SFRCN = 00 (Read Flash code)
READ_VERIFY_64K:
MOV SFRAL,R2
; SFRAL(C4H) = 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 CHPENR,#87H ; CHPENR = 87H
MOV CHPENR,#59H ; CHPENR = 59H
MOV CHPCON,#83H ; 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.
Headquarters
Winbond Electronics (H.K.) Ltd.
No. 4, Creation Rd. III,
Science -Based Industrial Park,
Hsinchu, Taiwan
TEL: [phone]
FAX: [phone]
Unit 9 -15, 22F, Millennium City,
No. 378 Kwun Tong Rd;
Kowloon, Hong Kong
TEL: [phone]
FAX: [phone]
http://www.winbond.com.tw/
Voice & Fax -on-demand: 886 -2-27197006
Taipei Office
11F, No. 115, Sec. 3, Min -Sheng East Rd.,
Taipei, Taiwan
TEL: [phone]
FAX: [phone]
Note: All data and specifications are subject to change withou t notice.
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.
TEL: [phone]
FAX: [phone]
- 31 -
Publication Release Date: June 2000
Revision A1