Renesas Single-Chip Microcomputer M38C89T-ADF Uživatelský manuál stáhnout pdf (Strana 35)

Rev.1.00 May 22 2012

REJ09B0566

4-15

Library Reference

4.2.2 33BInterrupt Control Unit

R_INTC_Write

6) R_INTC_Write

Synopsis

Update an interrupt register.

Prototype bool R_INTC_Write(

uint8_t data1, // Register selection

uint8_t data2, // Register number

uint8_t data3 // Register value

);

Description

Write the new value to an interrupt register.

[data1]

• The register to be updated.

PDL_INTC_REG_ICR or

PDL_INTC_REG_IPR or

PDL_INTC_REG_IRQRR or

PDL_INTC_REG_PIRR or

PDL_INTC_REG_PINTER or

PDL_INTC_REG_IBNR or

PDL_INTC_REG_IBCR

Select the current CPU interrupt priority level or

IRQ Control Register

IRQ Priority Register

IRQ Interrupt Request Register

PINT Interrupt Enable Register

PINT Interrupt Request Register

Bank Control Register

Bank Number Register

[data2]

The register number.

ICR: Between 0 and 3

IPR: Between 0 and 22 (16h).

IRQRR: Ignored.

PIRR: Ignored.

PINTER: Ignored.

IBCR: Ignored.

[data3]

The value to be written to the register.

Return value

True if the parameter is within range; otherwise false.

Category

Interrupt control

Reference

R_INTC_Read, R_INTC_Modify

Remarks • This function uses an interrupt routine to modify the IPL bits. If the user has disabled interrupts (cleared

the ‘I’ bit in the PSW register) in their own code, this function will lock up.

Program example

/* PDL definitions */

#include “r_pdl_intc.h”

/* PDL device-specific definitions */

#include “r_pdl_definitions.h”

void func( void )

{

/* Set the IPL to 6 */

R_INTC_Write(

PDL_INTC_REG_IPL,

);

}

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