MC68HC08AZ0 Datasheet, PDF(167/444 Page) Motorola, Inc – Advance Information

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MC68HC08AZ0 Datasheet, PDF (167/444 Pages) Motorola, Inc – Advance Information

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Freescale Semiconductor, Inc.

Low-Voltage Inhibit (LVI)

LVI

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166

Polled LVI operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Forced reset operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

False reset protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

LVI Status Register (LVISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

LVI interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Low-power modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

WAIT mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Stop Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

Introduction

This section describes the low-voltage inhibit module, which monitors

the voltage on the VDD pin and can force a reset when the VDD voltage

falls to the LVI trip voltage.

1-lvi

MOTOROLA

Low-Voltage Inhibit (LVI)

For More Information On This Product,

Go to: www.freescale.com

MC68HC08AZ0

165

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