Renesas H8S/2111B Bedienungsanleitung PDF herunterladen (Seite 12)

Peripherals

10

H8

®

Family of Microcontrollers

■ Analog Interfaces

• 4- to 16-channel 10-bit successive-

approximation A/D converter (ADC)

• 2-channel, 14-bit delta-sigma ADC

• 2- to 4-channel 8-bit D/A converter

■ Timers

• Rich suite of 8-bit and 16-bit

multifunction, multipurpose timers

– Input capture, output compare, auto

reload, event counter, up/down counter,

interval timer, and sleep mode timer

• 3-phase Motor Control Timer

– 2-phase encoder with up/down count

capability

– Suitable for motor control apps

• Asynchronous Event Counter (AEC)

– Counts events even when system clock

is disabled for power saving

• Watchdog timer (WDT) with inde-

pendent RC circuit for greater safety

• 10-bit or 14-bit Pulse Width

Modulation (PWM) timer with

ripple-reduction feature

– Can be used as a D/A converter by

adding an external low-pass filter

• Real-Time Clock (RTC): seconds,

minutes, hours, days and weeks

■ Arbitrary Waveform Generation /

Programmable Pulse Generator

(PPG) / Timing Pattern Controller

(TPC)

• Arbitrary waveform patterns are

stored in memory and generated on

output pins with the PPG or TPC in

conjunction with a timer and DMA

• Provides 8/16-bit programmable pulse

outputs using TPU as base

• Output trigger signals can be selected

in 4-bit groups

• Each group can operate both

simultaneously and independently

• Output trigger signals can operate in

parallel with DTC and DMAC

PGA

ADCR

Internal data bus

PSS

Multiplexer

IRRSDADCN

fovs =

Φ

fovs =

Φ/2, Φ/4, Φ/8, Φ/16, Φ/32

Secondary

A/D converter

LCD drive power supply circuit

Reference voltage

generator

Legend

A

DCR:

A

DSSR: IRRSDADCN:

A

DDR:

BGRMR:

A/D conversion end interrupt request flag

A/D data register

Band-Gap Regulator (BGR) control register

Band-Gap

reference circuit

Clock interrupt

control circuit

Dout (16 bits;

14 bits are valid)

Programmable gain amplifier

System clock

Φ

ADSSR

LCD

ADDR (16 bits)

Ain1

Ain2

V

ref/REF

ACOM

Buffer

BGRMR

A/D control register

A/D start/status register

H8/38086 14-bit Delta-Sigma A/D

Select clock

Bus interface

Clock

Internal data bus

DADRA

DADRB

PWX1

Internal clock

φ

φ

/2

PWX0

Fine–adjustment pulse addition

Fine–adjustment pulse addition

Legend:

DACR:

PWM D/A control register

DADRA:

PWM D/A data register A

DADRB:

PWM D/A data register B

DACNT:

PWM D/A counter

DACR

Control

logic

Base cycle compare match A

Base cycle compare match B

Base cycle overflow

Module data bus

Comparator

A

Comparator

B

DACNT

Internal clock

32KOVI (IRQ15)

(Interrupt

request signal)

SUBCK/64

SUBCK/256

SUBCK/32

SUBCK/128

Clock

Counter

TCNT32K TCR32K

Module bus

Clock

Select

Bus

Interface

Internal bus

TK32K

H8/Tiny 14-Bit PWM Timer Block Diagram

H8S 32K Sleep Mode Timer Block Diagram

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 45 46

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