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Chapter 46 alarm comparator, Overview, Block diagram – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 46 Alarm Comparator

1.Overview

Chapter 46 Alarm Comparator

1. Overview

This chapter provides an overview of the Alarm Comparator (also called Under/Overvoltage De-
tection), describes the register structure and functions, and describes the operation of the Alarm
Comparator.

2. Block Diagram

Figure 2-1 Alarmcomparator (simplified circuit)

ACSR

AVDD

OUT1

OUT2

PD

CLKP

D

D

Q

Q

CK

CK

STOP

CLKP

IRQ_AC

Alarm comparator - analog part

Alarm comparator - digital part

Interrupt logic

ALARM

0.8 AVDD

0.4 AVDD

RST