MC908MR16CFUE Datasheet, PDF(113/282 Page) Freescale Semiconductor, Inc – On-chip programming firmware for use with host personal computer, Clock generator module (CGM)

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

MC908MR16CFUE Datasheet, PDF (113/282 Pages) Freescale Semiconductor, Inc – On-chip programming firmware for use with host personal computer, Clock generator module (CGM)

◁

Chapter 11

Power-On Reset (POR)

11.1 Introduction

This section describes the power-on reset (POR) module.

11.2 Functional Description

The POR module provides a known, stable signal to the microcontroller unit (MCU) at power-on. This

signal tracks VDD until the MCU generates a feedback signal to indicate that it is properly initialized. At

this time, the POR drives its output low.

The POR is not a brown-out detector, low-voltage detector, or glitch detector. VDD at the POR must go

completely to 0 to reset the microcontroller unit (MCU). To detect power-loss conditions, use a low-voltage

inhibit module (LVI) or other suitable circuit.

MC68HC908MR32 â¢ MC68HC908MR16 Data Sheet, Rev. 6.1

Freescale Semiconductor

113

▷