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EM78P451SWM 데이터시트(PDF) 32 Page - ELAN Microelectronics Corp

부품명 EM78P451SWM
상세설명  8-Bit Microcontroller with OTP ROM
PDF  54 Pages
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제조업체  EMC [ELAN Microelectronics Corp]
홈페이지  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P451SWM 데이터시트(HTML) 32 Page - ELAN Microelectronics Corp

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EM78P451S
8-Bit Microcontroller with OTP ROM
28
•
Product Specification (V1.0) 06.01.2004
(This specification is subject to change without further notice)
MOV 0x05,A
MOV 0X06,A
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



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