MC9S08SH8CSC View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

MC9S08SH8CSC

HCS08 Microcontrollers

Freescale Semiconductor 

#pragma TRAP_PROC

void RTC_ISR(void)

{

/* Clear the interrupt flag */

RTCSC.byte = RTCSC.byte | 0x80;

/* RTC interrupts every 1 Second */

Seconds++;

/* 60 seconds in a minute */

if (Seconds > 59){

Minutes++;

Seconds = 0;

}

/* 60 minutes in an hour */

if (Minutes > 59){

Hours++;

Minutes = 0;

}

/* 24 hours in a day */

if (Hours > 23){

Days ++;

Hours = 0;

}

}

Chapter 13 Real-Time Counter (S08RTCV1)

MC9S08SH8 MCU Series Data Sheet, Rev. 3

Freescale Semiconductor

201

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