SW006010 Microchip Technology, SW006010 Datasheet - Page 87

• Manufacturer Part Number: SW006010
• Description: MPLAB 17C SOFTWARE
• Manufacturer: Microchip Technology

Specifications of SW006010

• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: PIC17C
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: MPLAB®
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

 2002 Microchip Technology Inc.
11.3.2.2
There are two ways to enable the external interrupt on the INT pin:
Library Call
To enable the external interrupt on the INT pin through a library call, you must include
the
#include <int16.h>
Modifying Register Bits
This interrupt is edge triggered. You can specify whether this interrupt occurs on the
rising or the falling edge by setting or clearing, respectively, the TMR0 Status/Control
(T0STA) register’s RA0/INT Pin Interrupt Edge Select (INTEDG) bit – [T0STA<7>].
To enable the external interrupt on the INT pin, you must clear the INTSTA register’s
External Interrupt on RA0/INT Pin Flag (INTF) bit – [INTSTA<4>]. This clears any
previous occurrence of external interrupts on the RA0/INT pin. You must set the
INTSTA register’s External Interrupt on RA0/INT Pin Enable (INTE) bit – [INTSTA<0>].
#ifdef _TRIGGER_ON_RISING_EDGE
#else
#endif
#ifdef _TRIGGER_ON_RISING_EDGE
#else
#endif
INTSTAbits.INTF = 0;
INTSTAbits.INTE = 1;
int16.h
OpenRA0INT(INT_ON | INT_RISE_EDGE);
OpenRA0INT(INT_ON | INT_FALL_EDGE);
T0STAbits.INTEDG = 1;
T0STAbits.INTEDG = 0;
EXTERNAL INTERRUPT ON INT PIN
header file and call the
Enabling/Disabling Interrupts
OpenRA0INT
function.
apRNOVM^-page 81
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