HD64F2149YV datasheet(338/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

PDF	1075 Pages

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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338 / 1075 page

Section 11 16-Bit Free-Running Timer

Rev. 3.00 Jan 18, 2006 page 310 of 1044

REJ09B0280-0300

11.1.2

Block Diagram

Figure 11.1 shows a block diagram of the free-running timer.

External

clock source

Internal

clock sources

Clock select

Comparator A

OCRA (H/L)

Comparator B

OCRB (H/L)

Internal

data bus

φ/2

φ/8

φ/32

FTCI

Compare-

match A

Clear

Clock

FTOA

FTOB

Overflow

ICRA (H/L)

Compare-

match B

Input capture

FRC (H/L)

TCSR

FTIA

FTIB

FTIC

FTID

Control

logic

TIER

TCR

TOCR

Interrupt signals

ICIA

ICIB

ICIC

ICID

OCIA

OCIB

FOVI

Legend:

OCRA, B:

FRC:

ICRA, B, C, D:

TCSR:

Output compare register A, B (16 bits)

Free-running counter (16 bits)

Input capture register A, B, C, D (16 bits)

Timer control/status register (8 bits)

TIER:

TCR:

TOCR:

Timer interrupt enable register (8 bits)

Timer control register (8 bits)

Timer output compare control

ICRB (H/L)

ICRC (H/L)

ICRD (H/L)

OCRA R/F (H/L)

OCRDM L

×1

×2

Comparator M

Compare-match M

Figure 11.1 Block Diagram of 16-Bit Free-Running Timer

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