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參數資料
型號: W79E201A16PN
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, 16 MHz, MICROCONTROLLER, PQCC44
封裝: ROHS COMPLIANT, PLASTIC, LCC-44
文件頁數: 83/87頁
文件大小: 818K
代理商: W79E201A16PN
W79E201
Publication Release Date: December 16, 2004
- 83 -
Revision A2
EXAMPLE 2:
;*****************************************************************************************************************************
;* Example of 4KB LD Flash EPROM program: This loader program will erase the 64KB AP Flash EPROM first,
;* then reads the new code from external SRAM and program them into 64KB AP Flash EPROM.
;* XTAL = 24 MHz
;*****************************************************************************************************************************
.chip 8052
.RAMCHK OFF
.symbols
CHPCON
EQU
9FH
TA
EQU
C7H
SFRAL
EQU
ACH
SFRAH
EQU
ADH
SFRFD
EQU
AEH
SFRCN
EQU
AFH
ORG
000H
LJMP
100H
; JUMP TO MAIN PROGRAM
;************************************************************************
;* 1. TIMER0 SERVICE VECTOR ORG = 0BH
;************************************************************************
ORG 000BH
CLR
TR0
; TR0 = 0, STOP TIMER0
MOV
TL0, R6
MOV
TH0, R7
RETI
;************************************************************************
;* 4KB LD Flash EPROM MAIN PROGRAM
;************************************************************************
ORG
100H
MAIN_4K:
MOV
TA,#AAH
MOV
TA,#55H
MOV
CHPCON,#03H ; CHPCON = 03H, ENABLE IN-SYSTEM PROGRAMMING.
MOV
SFRCN,#0H
MOV
TCON,#00H
; TCON = 00H, TR = 0 TIMER0 STOP
MOV
TMOD,#01H
; TMOD = 01H, SET TIMER0 A 16BIT TIMER
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