STC12LE5616AD datasheet(146/377 Pages) STC

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STC12LE5616AD Datasheet(PDF) 146 Page - STCmicro Technology Co,.Ltd

Part #	STC12LE5616AD

Description	Enhanced 8051 Central Processing Unit ,1T per machine cycle, faster 8~12 times than the rate of a standard 8051.

PDF	377 Pages

Scroll/Zoom	100%

Manufacturer	STC [STCmicro Technology Co,.Ltd]

Direct Link	http://www.stcmicro.com/

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146 / 377 page

1. Demostrate External Interrupt 0 triggered by Falling Edge

C program

/*-------------------------------------------------------------------------------*/

/* --- STC MCU International Limited ----------------------------------*/

/* --- STC 1T Series MCU Ext0 (Falling edge) Demo -----------------*/

/* If you want to use the program or the program referenced in the */

/* article, please specify in which data and procedures from STC */

/*-------------------------------------------------------------------------------*/

#include "reg51.h"

//External interrupt0 service routine

void exint0() interrupt 0

//INT0, interrupt 0 (location at 0003H)

{

}

void main()

{

IT0 = 1;

//set INT0 interrupt type (1:Falling 0:Low level)

EX0 = 1;

//enable INT0 interrupt

EA = 1;

//open global interrupt switch

while (1);

}

6.7.1 External Interrupt 0 (INT0) Demo Programs (C and ASM)

6.7 Demo Programs about Interrupts (C and ASM)

146

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