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參數資料
型號: W77E516F-25
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數: 83/85頁
文件大小: 596K
代理商: W77E516F-25
Preliminary W77E516
Publication Release Date: August 16, 2002
- 83 -
Revision A1
MOV TA, #AAH
MOV TA, #55H
MOV CHPCON, #03H
MOV TCON, #00H
MOV TMOD, #01H
MOV IP, #00H
MOV IE, #82H
MOV R6, #F0H
MOV R7, #FFH
MOV TL0, R6
MOV TH0, R7
MOV TCON, #10H
MOV PCON, #01H
; CHPCON = 03H, ENABLE IN-SYSTEM PROGRAMMING.
; TCON = 00H, TR = 0 TIMER0 STOP
; TMOD = 01H, SET TIMER0 A 16BIT TIMER
; IP = 00H
; IE = 82H, TIMER0 INTERRUPT ENABLED
; TCON = 10H, TR0 = 1, GO
; ENTER IDLE MODE
UPDATE_64K:
MOV TCON, #00H
MOV IP, #00H
MOV IE, #82H
MOV TMOD,#01H
MOV R6, #D0H
; TCON = 00H , TR = 0 TIM0 STOP
; IP = 00H
; IE = 82H, TIMER0 INTERRUPT ENABLED
; TMOD = 01H, MODE1
; SET WAKE-UP TIME FOR ERASE OPERATION, ABOUT 15 mS
DEPENDING ON USER'S SYSTEM CLOCK RATE.
MOV R7,#8AH
MOV TL0,R6
MOV TH0,R7
ERASE_P_4K:
MOV SFRCN, #22H
; SFRCN = A2H, ERASE 64K APROM1
MOV TCON, #10H
MOV PCON, #01H
;*********************************************************************
;* BLANK CHECK
;*********************************************************************
MOV SFRCN, #0H
; SFRCN = 22H, ERASE 64K APROM0
; TCON = 10H, TR0 = 1,GO
; ENTER IDLE MODE (FOR ERASE OPERATION)
; SFRCN = 00H, READ 64KB APROM0
; SFRCN = 80H, READ 64KB APROM1
; START ADDRESS = 0H
MOV SFRAH, #0H
MOV SFRAL, #0H
MOV R6, #FDH
MOV R7, #FFH
MOV TL0, R6
MOV TH0, R7
; SET TIMER FOR READ OPERATION, ABOUT 1.5
μ
S.
BLANK_CHECK_LOOP:
SETB TR0
MOV PCON, #01H
MOV A, SFRFD
CJNE A, #FFH, BLANK_CHECK_ERROR
INC SFRAL
MOV A, SFRAL
JNZ BLANK_CHECK_LOOP
INC SFRAH
MOV A, SFRAH
CJNE A, #0H,BLANK_CHECK_LOOP ; END ADDRESS = FFFFH
JMP PROGRAM_64KROM
; ENABLE TIMER 0
; ENTER IDLE MODE
; READ ONE BYTE
; NEXT ADDRESS
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