參數(shù)資料
型號: EM78P451
英文描述: Dual Advanced Synchronous Rectified Buck MOSFET Drivers with Protection Features; Temperature Range: 0&degC to 70°C; Package: 16-QFN
中文描述: 8位微控制器的通用產(chǎn)品[英文]
文件頁數(shù): 24/52頁
文件大?。?/td> 1287K
代理商: EM78P451
EM78P451
OTP ROM
This specification is subject to change without prior notice.
2002/03/01
30
MOV A,@0XFF
IOW 0X08
MOV A,@0B11001111 ;SET PRESCALER FOR WDT
CONTW
MOV A,@0B00010001 ;DISABLE WAKEUP FUNCTION
IOW 0X0E
MOV A,@0B00000010 ;ENABLE EXTERNAL INTERRUPT
IOW 0XF
ENI
MOV A,@0B00110111
IOW 0X09
BC 0X3F,1
;CLEAR RBFIF FLAG
NOP
JBS 0X3F,1
;POLLING LOOP FOR CHECKING INTERRUPT OCCURENCE
JMP $-2
JMP INTERRUPT
SPI:
BS 0X0D,4
;KEEP SSE ENABLED AS LONG AS POSSIBLE
WDTC
MOV A,@0X0F
;SHOW A SIGNAL WHEN ENTERING SPI LOOP
MOV 0X06,A
JBC 0X08,1
;CHOOSE P81 AS A SIGNAL BUTTON
JMP SPI
MOV A,@0X5A
;MOVE 5A INTO WRITE BUFFER WHEN P81 BUTTON IS PUSHED
MOV 0X0B,A
NOP
JBC 0X0D,4
;POLLING LOOP FOR CHECKING SPI TRANSMISSION COMPLETED
JMP $-2
BS 0XD,4
NOP
MOV A,@0XF0
;DISPLAY AT PORT6 WHEN P81 BUTTON IS PUSHED
MOV 0X06,A
MOV A,@0X00
;SEND A SIGNAL TO MASTER TO PREVENT INFINITE LOOP
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