Rtc Driver - Freescale Semiconductor DSP56800E User Manual

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RTC Driver

This section describes the API of MC56F800x Real-Timer Counter (RTC) on-chip module. The

functionality of the RTC module itself is described in the 56F800x Peripheral Reference

Introduction

The MC56F800x devices have one Real-Time Counter module. The RTC module contains a 8-bit

up counter, a modulo register, and a control register. The modulo and control registers are

read/writable. The counter is read only. The modulo register is loaded with a value to count to and

the pre-scaler is set to determine the counting rate. When enabled, the counter counts up to the

modulo value and sets a flag (and an interrupt request if enabled), then it resets to $00, and

resumes counting.

This section describes the RTC driver software, providing the low level software layer interfacing

hardware with software.

Quick Reference

This section is intended as a source of quick access information, while the details are discussed in

Section 5.26.3.

Module base address

RTC (RTC_BASE)

API Definition

The following header files are needed in order to use the RTC device driver:

Required Header File(s):

#include "qs.h"

#include "rtc.h"

The following information may be found in the header file rtc.h.

Public Data Structure(s):

FREESCALE SEMICONDUCTOR

Table 5-925. RTC Module Base Address

Targeting 56F8xxx Platform

MC56F802x/3x

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