digital interfaces

Yazd university

INTERFACE

Presenter:Mohammad

Dehghani

2015,May

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Yazd university

• Microprocessor• Microcomputer• Microcontroller

External Peripheral

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Yazd university

Types of Communication

Parallel

Serial

Interface

Fast

Expensive

Slow

Cheap

Easy

Complex

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Serial and Parallel Interfaces

USART

1-WireUNI/OISA

SPI

TWI

RS232Zigbee

IBM system/360

CAN

USB

EISA SATAPATASCSI

FSB

IEEE1284

IEEE-488

Morse code telegraphy

RS-422RS-423

RS-485

I2CARINIC 818

Atari SIO

FireWire

Ethernet

Fibre channel

Infiniband

MIDI

DMX512SDI-12

CoaxPressSerial attached SCSI

SpaceWire

Hyper Transport

PCI

ADB

SONETSDH

T-1,E-1

AGPPCIe

IEEE1394

Thunderbolt

DVI

FPD Link

SCCBHDMI SDI

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PCI• Peripheral Component Interconnect

• Introduced by INTEL 1990

• Parallel Bus, Synchronous to a single bus clock

• Displaced the combination of several slow ISA slots

• Network cards• Sound Cards• Modems• TV tuner cards• Disk controller

cards,…

Used for

Heyday in Desktop computers was the decade 1995-2005

PCI PCI-X PCIeminiPCICardBus

AGP

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UNI/O bus

• Asynchronous Serial Bus • Manufactured by MICROCHIP

• One Master , Multiple Slaves

• One logic signal:

SCIO — Serial Clock, Data Input/Output

• Command Structure

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TWI -Two Wire Interface(I2C)

EEPROM memoriesRTC IcsSensorsCameras(SCCB), …

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• Open Collector

• Wired-AND

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TWI -Two Wire Interface(I2C)Synchronous Interfacebe care :

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• 7 bits 128 devices

• The address 0000000 is reserved for a general call.• All addresses of the format 1111XXX should be reserved for future purposes.

128 – 1 – 8 = 119 devices can be addressed

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Serial Peripheral Interface - SPI

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Controller Area Network-CAN

• Started at Robert Bosch GmbH

• The first CAN controller chips, produced by Intel and Philips in 1987

• Standardized by International Organization for Standardization as ISO 11898 in 1993

Application :

• The modern Automobiles • Cycling• Industrial• Entertainment

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Thanks a lot

digital interfaces

Engineering