HD64F36022 datasheet(256/384 Pages) RENESAS

Part #	HD64F36022

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

PDF	384 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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256 / 384 page

Section 15 Power-On Reset and Low-Voltage Detection Circuits (Optional)

Rev. 4.00 Sep. 23, 2005 Page 230 of 354

REJ09B0025-0400

PSS:

LVDCR:

LVDSR:

LVDRES:

LVDINT:

Vreset:

Vint:

Prescaler S

Low-voltage-detection control register

Low-voltage-detection status register

Low-voltage-detection reset signal

Low-voltage-detection interrupt signal

Reset detection voltage

Power-supply fall/rise detection voltage

Legend

RES

PSS

OVF

Vreset

Vcc

Vint

LVDRES

LVDCR

LVDSR

LVDINT

Reference

voltage

generator

Noise canceler

Interrupt

control

circuit

Internal reset

signal

Power-on reset circuit

Low-voltage detection circuit

Ladder

resistor

−

Interrupt

request

Figure 15.1 Block Diagram of Power-On Reset Circuit and Low-Voltage Detection Circuit

15.2

The low-voltage detection circuit has the following registers.

• Low-voltage-detection control register (LVDCR)

• Low-voltage-detection status register (LVDSR)

HD64F36022 Datasheet(PDF) 256 Page - Renesas Technology Corp

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