MB89630系列以及类似微控制器的软件实时时钟

MB89630系列以及类似微控制器的软件实时时钟
MCU-AN-389017-E-V51




Application Note

Software Real Time Clock

for MB89630R and similar Microcontrollers

Fujitsu Microelectronics Europe GmbH
Vers. 5.1 by F. T.




1) Overview

This Application Note features a Real Time Clock from a Watch Timer Interrupt (thus usable
with a 32kHz Sub-Clock). It has been developped for the MB89630R series (and tested on the
corresponding Starter-kit) but can be easily adapted for the other 8-bit series (MB89120/A,
MB89130, ..., MB89990).

It also shows how it is possible to build a project composed of different modules, some
written in Assembler and others in C, and to handle variab