Renesas M16C/62P Group Manual do Utilizador descarregar pdf (Página 85)

Rev.1.00 2007.11.1

REC10B0002-0100

__GetInterruptFlag

Synopsis

Boolean __GetInterruptFlag(unsigned long data1, unsigned int *data2))

data1 Setup data 1

data2 Pointer to the buffer in which the acquired flag data is stored

Description

Gets the value of interrupt request flag of a specified external interrupt.

[data1]

RAPI_INT0 Uses _INT0 interrupt.

RAPI_INT1 Uses _INT1 interrupt.

RAPI_INT2 Uses _INT2 interrupt.

RAPI_INT3 Uses _INT3 interrupt.

RAPI_INT4 Uses _INT4 interrupt.

RAPI_INT5 Uses _INT5 interrupt.

RAPI_KEY Uses key input interrupt.

[data2]

Value of interrupt request flag (0: Interrupt not requested; 1: Interrupt requested)

Return value

If the external interrupt specification is incorrect, RAPI_FALSE is returned; otherwise,

RAPI_TRUE is returned.

Functionality

External interrupt

Reference

__SetInterrupt, __EnableInterrupt, __ClearInterruptFlag

Remark

•

If an undefined value is specified in the first argument, operation of the API cannot

be guaranteed.

Program example

#include " rapi_interrupt_m16c_62p.h"

void func( void )

{

unsigned char data;

/* Get flag of _INT2 interrupt */

__GetInterruptFlag( RAPI_INT2, &data );

}

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Renesas M16C/62P Group Manual do Utilizador Página 85