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W79E632A Datasheet(PDF) 75 Page - Nuvoton Technology Corporation |
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W79E632A Datasheet(HTML) 75 Page - Nuvoton Technology Corporation |
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75 / 79 page  W79E632A/W79L632A Publication Release Date: Nov. 11, 2009 - 75 - Revision A10 PROGRAM_64: MOV TA, #AAH ; CHPCON register is written protect by TA register. MOV TA, #55H MOV CHPCON, #03H ; CHPCON = 03H, ENTER IN-SYSTEM PROGRAMMING MODE MOV SFRCN, #0H MOV TCON, #00H ; TR = 0 TIMER0 STOP MOV IP, #00H ; IP = 00H MOV IE, #82H ; TIMER0 INTERRUPT ENABLE FOR WAKE-UP FROM IDLE MODE MOV R6, #F0H ; TL0 = F0H MOV R7, #FFH ; TH0 = FFH MOV TL0, R6 MOV TH0, R7 MOV TMOD, #01H ; TMOD = 01H, SET TIMER0 A 16-BIT TIMER MOV TCON, #10H ; TCON = 10H, TR0 = 1,GO MOV PCON, #01H ; ENTER IDLE MODE FOR LAUNCHING THE IN-SYSTEM PROGRAMMING ;************** ****************************************************************** ;* Normal mode 64KB APFlash program: depending user's application ;******************************************************************************** NORMAL_MODE: . ; User's application program . . . EXAMPLE 2: ;***************************************************************************************************************************** ;* Example of 4KB LDFlash program: This loader program will erase the 64KB APFlash first, then reads the new ;* code from external SRAM and program them into 64KB APFlash bank. 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 ;************************************************************************ |
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