application of uart

7/31/2019 Application of Uart

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Solutions using UARTs andSerial Protocol Bridges

Interface ProductsNXP Semiconductors

September 2006


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Agenda

What is a UART?

How does a UART work?

Why choose NXP UARTs?

Why do Next Generation Designs Still Need UARTs?

Why choose NXP UARTs over integrated UARTs?

What is a serial protocol bridge?

How are these new bridges used?

How can you qualify for free samples or demo board?

Survey

Stay alert for a fewQuick Poll questions

throughout thepresentation !


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UART is Universal Asynchronous Receiver and Transmitter

Easy and low cost serial interface to connect two computing systems Industry standard asynchronous communication data interfaces More reliable for high-speed serial communication Need less wires than parallel transmission Enable long distance serial communication (RS232=50ft, RS485=4Kft)

What is a UART?

HostProcessor

Intel

MotorolaASIC

FPGA

UA

RT

Receive

Transmit

UA

RT

Transmit

ReceiveTX RX

TXRX

8-bit

Parallel

8-bit

Parallel

Local System Remote System

Serial

HostProcessor

Intel

MotorolaASIC

FPGA


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How Does a UART Work?

Means of communication between multiple systemsTransmit UART:

takes data from the Transmit Processor & sends the byte in bitsReceiver UART:

receives the data one bit at a time & assembles the bits and sends the data tothe Receiving Processor

In both operations the UART: checks for communication errors

greatly relieves the processor the task of managing the communication channel

TransmitterShift Reg

CPUTransmitting

CPUTransmitting

Transmit UART

Interrupt

tx

tx

Empty

Full

FIFOFIFO CntrCntr

ReceiverShift Reg

CPUReceiving

CPUReceiving

Receive UART

Interrupt

rx

rx

Empty

Full

CntrCntr FIFOFIFO

Serial

(RS-232)

Parallel1 1

2 2

3 4


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Why choose NXP UARTs?

We are an established and committed long termsupplier

We offer a broad portfolio in the industry

All products are manufactured and assembled

in-house

Extensive application support including on-line

technical support: [email protected]

Multiple Channels

Low Voltage

Deep FIFO

Auto Flow Control

Low Power

Pin-to-Pin Migration

Small Package

Much More!


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Why Customers choose NXP?

Innovation is key, we constantly develop new solutions !

SC28L201/202: first high speed, low power UART with real-time data error

detection, intelligence interrupt arbitration, and 256 byte FIFO (1-2 Channel)

SC16CxxxB: advanced high speed with the broadest voltage range, 5Mbps

baud rates, fast bus cycle times, IrDA, Industrial temperature at commercial

pricing, and lead free

Micro-UART: the smallest 1-2-4 channel UARTs in HVQFN, shrunk LQFP,

and BGA package

SC68C752B, SC68C652B: 16CxxxB Dual UART with Motorola Interface

SC16C850L, SC16C852L, SC16C852V: 1.8V UART with 128-byte FIFO, and

Intel/Motorola and VLIO Interface


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Benefits

Improve the system performance Free up the processor

Provide context sensitive interrupt vector

Verify the correct data arrived at the destination in real time

Processor can send a large data packet per interrupt in short time

Warn of short messages in the receiver FIFO for high data throughput

Prevent data loss and the need for re-transmission

Ideal solution for battery-operated applications

Applications Telecom / networking : routers, servers, VoIP systems

Consumer electronic and security devices

Industrial control and Medical equipment

Portable devices : cell phone, PDA, GPRS, gaming Multi-drop industrial remote stations : display, sensor, meter

POS systems : vending screen, banking terminal, gas station

Remote access router : console, terminal, diagnostic, modem

UART


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Mobile UART: Smart, Small and Practical

Ideal for portable applications WCDMA mobile phones - Bluetooth link PDA, Smartphones, Gaming, Navigation

1-2-4 Channel UARTs

Low power and high data rate 5Mbps data rate 1.8V-2.5V-3.3V-5V operation

IrDA for wireless links

New : Our advanced SC16C85x family


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Industrial UART family


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Commercial 16CxxxB UART Family

BB


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Single (SC28L201) and Dual (SC28L202) channels UARTFull duplex independent UART

256-byte FIFO for receiver and transmitter13 programmable I/O ports3V and 5V operation with 5V-tolerant inputsPin programming for Motorola or Intel bus interfacesBaud Rates up to 3.125MbpsAuto RTS/CTS and Xon/Xoff Flow ControlPower-down mode (< 10A)Xon/Xoff Character Recognition

16-bit programmable Counter/TimerIntelligence Interrupt Arbitration (I2A)Auto Wake-up (9-bit) mode for RS485 applicationsLine break detection and Change of state detectionReceiver Time-out mode and Watchdog timer for receiverReal time transmission Error checkUART channels mode for system debugging

Interrupt Request and Acknowledgement pinsIndustrial temperature at Commercial pricing48-pin TSSOP package

SC28L201/202 Features

Intel and MotorolaConversion

WRN -> R/WN

RDN -> DACKN

High-PerformanceSingle Channel

UART


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Easily Interface to many Microcontrollers

Intel/Motorola and VLIO busLow voltage operation

1.8 to 3.3V operation with 5V tolerant inputs on modem side

Low Power, Sleep Mode < 10A

UART Baud Rate up to 5Mbps

High resolution clock prescaler

Choose any nearby clock to generate the perfect baud rateFIFOs: 128 bytes (transmitter and receiver)

Transmit and Receive FIFO level fill reports

Auto hardware flow control using RTS/CTS or DTR/DSR pins

Auto software flow control with programmable Xon/Xoff characters (single ordouble)

Auto RS485 support (automatic slave address detection and auto direction)IrDA support: 115.2Kbps

UART Software reset

Standard and Ultra Small package: LQFP, HVQFN and TFBGA

SC16C85xxSingle and dual channels, High Speed Low Voltage UARTs


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SC16C85x solutions offered

YESYES(1)YES1.8VVLIO2SC16C852V

YESYES2.5-3.3VINTEL/MOTO2SC16C852

YESYESTBD1.8VINTEL/MOTO2SC16C852L

YESTBD1.8VVLIO1SC16C850V

YESYES2.5-3.3VINTEL/MOTO1SC16C850

YESYESYES1.8VINTEL/MOTO1SC16C850L

LQFP

(9X9)

HVQFN

(5x5)

TFBGA

(3.5x3.5)

VccHost InterfaceChannelPart Number

For more information contact us at : [email protected] now! Production in Q406

Ideal for new designs that require :High speed UARTs to support BluetoothHigh performance UARTs that can interface with new generation CPUsDeep FIFO UARTs that enable transfer of larger data with minimum CPU overheadand more!


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Why use the UARTs over integrated UARTs?

Faster baud rates up to 5Mbps (good for Bluetooth)

Deeper FIFOs up to 256 byte

Low current consumption

Programmable UART baud rate with high resolution clock prescaler

Extra GPIO with change-of-state detectors for general-purpose or modemcontrol

More Flexible interrupt systemIndependent transmit and receive channel control

More Channels (1, 2, 4, and 8)

Better Auto software and hardware flow controls prevent loss of data

Better Auto multi-drop (RS-485) mode prevent software overhead

Flexible character length format 5 to 8 data, parity, 9-bit, and stop bitsBuilt-in IrDA interface circuitry enable wireless links communication

Upgrade the UART for future interfaces without replacing the CPU/ ASIC


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UARTs in New Designs

Enable data to be transmitted

rapidly to various links (LCD, GPS, GPRS,Bluetooth, IrDA, Wireless Headset)

Provide optimal solutions tomeet new designs demands

Extra channels (up to 8 channels)

Fast bus cycle times Deep FIFO (up to 256 bytes) High baud-rates (up to 5Mbps) Advance interrupts RS232 and RS485 (multi-drop mode) Software compatible to the system

Relieve CPU significantly from basic tasks!

The CPU can now focus on the essential tasks

CPU

UART Debug

LCD

BLUETOOTH

GPRS

SYSTEMDATA BUS

PHILIPSUART

GPS


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Navigation

Processor

D

U

AR

T

GPS

Receiver

Parallel Data Bus

Control

Interrupt

RS-232

Line

Drivers

U

A

R

T

DVD

Processor

RS-232Line

DriversInterrupt

ControlKeyboard

TX/RX

RTS/CTS

SC16C752B

SC28L202

SC16C750B

SC28L201

TX/RX

8

SerialParallel

Using the UARTs, the processor can manage the communication easily amongGPS receiver, DVD processor, and keyboard

DVD Navigation System


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HostProcessor

QualcommMSM6550 SC16C750BIBS

Bluetooth

Chip

Tx

Rx

Host Control

UART in Bluetooth ApplicationEx. WCDMA phone

Low Voltage, High-Speed Bluetooth Interface 2.7V, 1.5Mbps

8-bitParallel

SC16C750BIBSINT

High-speed

UART (5Mbps)

Bluetooth

RF

Advantages:

-64-byte FIFO-Auto flow controls-Low power mode-Sleep mode


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HostProcessor

QualcommMSM6280

SC16C750BIBS

Bluetooth

EDR

Tx

Rx

Host Control

UART in Bluetooth ApplicationEx. WCDMA phone

Low Voltage, High-Speed Bluetooth Interface 1.8V, 3.125Mbps

8-bitParallel

SC16C850LINT

High-speedUART (5Mbps)

BluetoothRF

Advantages:

-128-byte FIFO-Auto flow controls-Low power mode-Sleep mode


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What is a Bridge IC?

New generation of interface solutions for managing communication

among various bus interfacesPurpose to overcome the limitation of the host bus interface toperipherals

Benefits: Greater design flexibility Ability to retain original design investment

Faster time to market Link legacy and new systems and vice versa

UART

I2C

SPI

UART

I2C

SPI

IrDA

GPIO


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Connectivity Bridges in Production now!

?I2C to SPI buscontroller

?Low power and lowvoltage

?Full-duplex high-speed SPI interface

?Fast I2C deviceinterface

?Programmable

GPIO

?High datathroughput and

integrity

?TSSOP

?UART to I2C buscontroller


?Supports RS232

?Fast I2C device

interface?Programmable

GPIO and baud rate

?High data

throughput andintegrity

?TSSOP

?SPI to I2C buscontroller

?Low power andlow voltage

?Full-duplex high-speed SPI interface

?Fast I2C deviceinterface

?Programmable

GPIO

?High datathroughput and

integrity

?TSSOP

?SPI/I2C to high-speedUART


?Minimal hostconnection

?Supports RS232 /RS485

?IrDA for wireless links

?Configurable GPIO

?SPI speed: 4Mbps-15Mbps

?High data throughputand integrity

?TSSOP, HVQFN

SC18IS602SC18IM700SC18IS600SC16IS7xx


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SC16IS7xxI2C/SPI to UART/IrDA/GPIO

SC16IS750I2C/SPI Slave to 1-channel UART with 8 GPIOSupport IrDA speeds up to 115.2Kbit/sSPI speed up to 4Mbps


SC16IS740I2C/SPI Slave to 1-channel UART without GPIO


SC16IS762I2C/SPI Slave to 2-channel UART with 8 GPIOSupport IrDA speeds up to 1.152Mbit/s

SPI speed up to 15Mbps


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SC16IS75x/76xIC/SPI to UART/IrDA/GPIO

Single, Dual full-duplex UART

Selectable I2C or SPI bus interface

2.5V or 3.3V operation with 5V tolerant inputs

Low Power, Sleep Mode < 30A

UART Baud Rate up to 5Mbps

FIFO : 64 bytes (transmitter and receiver)

Auto HW flow control using RTS/CTS pins

Auto SW flow control with programmableXon/Xoff characters (single or double)

Auto RS485 support (automatic slave addressdetection and auto direction)

Programmable I/O pins (up to 8)

Support IrDA SIR speed up to 1.152Mbps

Software reset

I2C slave speed up to 400 Kbps

SPI slave speed up to 15Mbps

Small package: HVQFN, TSSOP

15 Mbps-16-1SC16IS740

2

2

1

1

# of

Ports

28

28

24

24

TSSOP

Pins

32

32

24

24

HVQFN

Pins

8

8

8

8

# of

GPIO

4 MbpsSC16IS752

15 MbpsSC16IS762

15 MbpsSC16IS760

4 MbpsSC16IS750

SPI Max

Speed

Part

Number

Supply

SCL/CLK

-CS/A0

S0

I2C/-SPI

-IRQ

X1 X2

SDA

Oscillator

Subaddress

decoder

I2C-SPI businterface

ResetPOR

UART

GPIO

CONTROL

SI/A1

TX

RX

RTS

CTS

GPIO0

GPIO1

GPIO7

-RESET


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Reduce host interface interconnection Less wires : 3 wires (I2C) or 5 wires (SPI) with interrupt support

Compatible with industry standard UARTs

Easy to use, Software can be ported from another platform

Allow host interfacing to either I2C or SPI bus through a selectable pin One chip for both I2C and SPI bus interface

Enable automatic slave address detection for RS485 applications Auto enable receiver when the slave address is matched

Enable auto direction in RS485 mode Auto inverted RTS pin during transmission

Regulate data flow automatically to prevent data overflow/lost Auto hardware and software flow control (single/double)

Programmable 8 I/O pins for modem or general purpose multi-function pins

Significantly reduce

effort and hardware resources ready to use the cost of connecting multiple devices bus sharing

a large number of traces across the system easy to design

Shrink board size and small IC package size less expensive to build

Suitable for hand-held, battery operated applications low power and small

SPI/I2C to UART/IrDA/GPIO Bridge


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Application Areas: Synchronous to Asynchronous interface bridge

Synchronous serial communication to processors

Asynchronous serial communication to peripherals

SPI / I2C to RS232 / RS485 interface conversion

Adapter for RS232 / RS485 devices Wireless communication IrDA

Point to point communication RS232 Multi-drop communication RS485

More UART channels needed in SPI / I2C systems

High performance UART required in SPI / I2C systems

Example Applications: Cell phone, Handheld Devices

Battery-Powered Equipment Network Diagnostic Terminal

Point of Sale (POS) Industrial Front-Panel Interfaces

Remove Access Server Bluetooth, GPS, and GPRS interface

Wireless IrDA data port Gaming machines

SPI/I2C to UART/IrDA Bridge w/GPIO


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Application Diagram of SC16IS7xx Bridge

The above diagram shows:

The SPI or IC master sends/receives data to/from a remote UARTdevice(s)

The programmable GPIO can be used to control multiple peripherals for example LED, fan control, etc

The built-in IrDA SIR enables point-to-point wireless communications with speed up to 1.152Mbps

CPU Serial Devices

PDA / Remote Control

Fan Control, LED

SPIMaster

Embedded

Processor

I2CMaster

SC16IS752/762

UART /IrDA

Ch2

GPIO(8 total)

I2CSlave

SPI Bus

I2C Bus

Bluetooth

GPS

Smart Cards

Peripherals

RS232UART

Ch1

SPISlave

RS485

OR

OR


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Fewer wire connection to the host

Compatible with industry standardUARTs

Allow I2C or SPI bus host interface

Automatic slave address detection forRS485 (multi-drop) applications

8 Programmable I/O pins for modemcontrol, keypad, and led blinker

Infrared-link wireless communication

Shrink board size with small ICpackage

Suitable for hand-held, battery

operated applications

SC16IS7xx ApplicationsBenefits


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Demonstrate Bridge solutions for high-speed serial data communicationbetween a SPI / I2C host and a UART device via RS232 / RS485 and a

wireless device via IrDA

Modular :

- Simple interface to an external SPI / I2C master through headers

- On-board I2

C / SPI microcontroller host interface- Direct connect a UART device through DB9 connector- IrDA SIR module for wireless communication

The demo boards are availablenow

Sample Code:

- SC16IS7x0 device initialization- RS232/RS485, and IrDA setup

The demo boards are availablenowVisit: http://www.standardics.nxp.com/support/boards/sc16is7xx/

SC16IS750/760 Demo BoardSPI/ I2C slave to UART Bridge


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SC18IM700UART to I2C Master Bridge w/GPIO

UART host interface

I2C master bus controller

RS-232 with baud rate up to 460.8 Kbps

I2C speed up to 400 kbps

16-byte Transmitter and Receiver FIFO

8 programmable I/O pins

Programmable baud rate generator

2.3V 3.6V Operation5V tolerant input pins

Sleep mode (Power down)

I2C-like RS-232 Protocol in ASCII format

I2C multi-master capability

Fixed 8N1 RS-232 format (1 start, 8 data, 1 stop, no parity bit)

Support hardware reset

After reset, the baud rate is 9600 bps (then, can be changed

through Baud Rate Generator)

WAKEUP pin

Very small 16-pin TSSOP package

UART I2C MasterBridge

Supply

RX

TX

Oscillator

UART

Reset

wakeup

POR

I2C

CONTROLLER

GPIO

-RESET

SDA

SCL

GPIO0GPIO1

GPIO7-WAKEUP


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Benefits: Industry standard serial communication UART and I2C Simple and cost effective interface Make a multitasking system more efficient Deep FIFO Significantly reduces complexity of system interconnections Significantly reduces software overhead and hardware resources Simplify PCB layout less traces and IC pins needed Enable long distance communication between host and I2C devices Enable UART systems communicating with I2C devices

Pin Out Diagram:

SC18IM700UART to I2C Master Bridge


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Application Areas: Any application which requires I2C Master capability Adapter for I2C devices Enabling I2C support in systems Processors need multiple I2C bus ports Point to point serial communication I2C devices diagnostic / debug tool

Example Applications: Cell Phones, Handheld Computers, PCs / Laptops Industrial Equipment Control Telecom / Networking Medical Equipment Sensor, Storage

Gaming machines I2C instrumentation and control

SC18IM700UART to I2C Master Bridge


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Host / CPU SC18IM700

I2CMaster

I2C Slave Devices

I2C EEPROM(PCF85116)

I2C LED Dimmer(PCA9531)

I2C GPIO(PCA9554A)

UART

I2C Bus

RS-232

8GPIOs

UART

Peripherals

LEDs Switches

Example message : 53 CE 06 11 97 80 00 00 AA 50

I

2

Ccommands

Application DiagramUART to I2C Master Bridge


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UART to I2C Serial Interface Demo Board

Demonstrate NXP Bridge solutions for serial data

communication between a UART host and multiple I2C

slave devices

Modular :-Simply interface to a hosts UART port-On-board I2C slave devices-Easy connect to external I2C slave devices through headers-Board power provided by nearby USB port

The demo boards are availablenow

Sample Code:-SC18IM700 device initialization-I2C slave devices commands

SC18IM700 Board

Board and sampling is available through [email protected]


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SC18IS600/601SPI to I2C Master Bridge w/GPIO

Full duplex communication

SPI host interfaceI2C Bus Controller

I2C Multi-master capability

Five configurable General Purpose I/O ports

5V tolerant I/O pins

SPI speed up to 3Mbps

I2C speed: 400 Kbps

96 byte TX FIFO

96 byte RX FIFO

2.4V 3.6V operation

Power down mode with Wakeup pin

Internal oscillator or external oscillatorActive low interrupt output

I2C Time-Out

Very small 16 pin TSSOP package3 Mbps

1Mbps

Max

SPI Clock

ExternalSC18IS601

InternalSC18IS600

OscillatorPart Number

SPI

PCA9564compatiblefunction &register set

-WAKEUP

MOSI

-SCLK

SDA

SCL

5

VCC VSS

-CS

MISO

-RESET

GPIOsGPIO REG.

-INT


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SC18IS600/601SPI to I2C Master Bridge

Simple communication protocol almost no overhead

Full duplex communication with very high data rates

Two-way simultaneous independent transmission (two lines)

Suitable for I2C communication with devices that are accessed intermittently

LED Dimmer, Data Storage, Switches

Significantly reduces a large number of traces across the system

LED Dimmer, Data Storage, SwitchesSignificantly reduces effort and hardware resources

Ready to use and sample codes are available

Significantly reduces the cost of connecting multiple devices

Direct connect an I2C device to the I2C bus

Minimizes interconnections smaller and less expensive PCBs

Enables controlling peripherals with programmable GPIO ports

Five ports can be used as General Purpose Input and Output

Efficient in a single master single slave scenario


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Application Areas: Synchronous serial communication of host processor and

peripherals

SPI to I2C serial interface conversion

Adapter for I2C devices

Enabling I2C support in a system

Processors need multiple I2C bus ports

Multi-master communication

Example Applications: Cell Phones, Handheld Computers

Industrial Equipment Control

Telecom / Networking Medical Equipment

Sensor, Storage,

Gaming machines and More!

SC18IS600/601SPI to I2C Master Bridge


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The above diagram shows

- The SPI master sends data to control I2C slave devices such as I2C LED Dimmer

- The programmable GPIOs can be used to control multiple peripherals such as LEDs

Host / CPU SC18IS600

SPISlave

I2CMaster

I2C Slave Devices

I2C EEPROM(PCF85116)

I2C LED Dimmer(PCA9531)

I2C GPIO(PCA9554A)

SPI

Master

I2C Bus

SPIBus

5GPIOs

Peripherals

LEDs, SwicthesHost / CPU

I2C

Master

Application DiagramSPI-to-I2C Master Bridge


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SPI to I2C Serial Interface Demo Board

Demonstrate the Bridge solutions for serial datacommunication between a SPI host and multiple

I2C slave devices.

Modular :

- Simple interface to a SPI master and external I2Cslave devices through headers

- On-board I2C slave devices

The demo boards availablenow

Sample Code:- SC18IS600/601 device initialization- I2C slave devices commands

SC18IS600/601 Board

Board and sampling is available through: [email protected]


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SC18IS602/603I2C to SPI Master Bridge

I2C-bus slave interface operating up to

400KHz

Full duplex SPI master interface operating

up to 4Mbps

Deep data buffer up to 200 byte

Up to four SPI slave select output pins

Up to four programmable GPIO pins

Operating supply voltage: 2.4V to 3.6V

Low power mode

Internal oscillator option

Active low interrupt output

Industrial temperature range (-40 to +85 C)

Very small 16-pin TSSOP package 4 Mbps

1.8 Mbps

Max

SPI Clock

ExternalSC18IS603

InternalSC18IS602

OscillatorPart Number


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Simple I2C and SPI communication protocol

Full duplex SPI communication with very high data rates Two way simultaneous independent transmission (two lines)

Enables controlling up to four SPI slave devices

Suitable for I2C-to-SPI communication with devices that are accessed intermittently SPI EEPROM for data storage

Significantly reduces a large number of traces across the system Two I2C traces to Master and Four SPI traces to Slave

Significantly reduces effort and hardware resources Ready to use and sample codes are available

Significantly reduces the cost of connecting multiple devices Direct connect to the hosts via I2C-bus and the devices via SPI-bus

Minimizes interconnections Smaller packages so less expensive PCBs

Enables controlling peripherals with programmable GPIO ports Four ports can be used to control LEDs output



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Application Areas:

Synchronous serial communication between processors and peripherals I2C slave-to-SPI master serial interface conversion

Adapter for SPI devices

Enabling SPI support in an existing system

Processors needs multiple SPI-bus ports

Broadcasting SPI communication

Example Applications: Cell Phones, Handheld Computers

Industrial Equipment Control

Telecom / Networking

Medical Equipment

Sensor, Storage,

Gaming machines and More!



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The above diagram shows

The host processor with I2C-bus master interface sends data to control SPI slave devices such asSPI EEPROM

The programmable GPIOs can be used to control multiple peripherals such as LEDs

Application DiagramI2C-to-SPI Master Bridge

The Usage Scenario of SC18IS602/603 (I C-to-SPI) Bridge

Host

Processor

SC18IS602/603

I2C

Slave

SPI

Master

SPI Slave Devices

SPI EEPROM

I2C

Master

SPI

BusI2C

Bus

I2C-to-SPI Bridge

GPIO

Peripheral

LED

SPI LCD


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Demonstrate the Bridge solutions for serial data communicationbetween a I2C host and multiple SPI slave devices.

Modular :

-Simple interface to an external I2C master and SPI slave devicesthrough headers

-Selectable I2C device address

The demo boards availablenow

Sample Code:-SC18IS602/603 device initialization

-SPI slave bridge commands

SC18IS602/603 Demo BoardI2C-to-SPI Serial Interface

Board and sampling is available through: [email protected]

B id IC i H S it S t


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New Design, New Solution

Bridge IC in a Home Security Systems

Using the Bridge IC - SC16IS750, the home control reports a summary of itsdevices about once a second to the home monitor over a High-speed SPI-to-RS232

link

Security

Security

Remote

Controls

Door

Window

IR Sensor

Door

Window

Rooms

SecurityConsole

Home ControlHandheld

Remotes

Zone &Alarm Status

Power Line

Interface Lights

Appliances

Home Monitor

HomeControl

Monitor

SC16IS750

Status

Cmd

Cmd &

Sensor

Device &

Security &

Control

Status

Cmd &

CmdStatus

Power

VideoSPI RS-232

TV

UHFModular

Smart RFRepeater

Home

Control

B id IC i POS A li i


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Scale

Bridge IC in a POS Application

SC16IS752SC16IS752

I2C

Bus

POS

ARM7Processor

ARM7Processor

SDRAMSDRAMAddress

Data Bus

Monitor

Printer

Server

Barcode

Reader

Bridge IC SC16IS752 enables the processor to expand the

communication for multiple peripherals such as Barcode reader and Scale

UART

C


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Using the Bridge IC SC16IS752 for managing high-speed communication amongthe data collection modules

NXP LPC21381.8V ARM7 Processor

Data

CollectionModule 1

Data

CollectionModule 2

Bridge IC in a Power Meter Application

SC16IS752

Debug

Port

I2C

U

A

R

T

U

A

R

T

GPRS

LCD

B id IC i S lli R di A li i


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RF BasebandReceiver ARM9PROCESSOR

TI DM320

SC16IS760

SPI-to-RS485

DockingStation

IrDA

AUDIODAC

AUDIO OUT

UART

SPI

I2S

RS485

Bridge IC in a Satellite Radio Application

Using the Bridge IC - SC16IS760 (SPI-to-RS-485) enables the processor seamlesslycommunicate with the docking station and touch-screen monitor in high-speed

New Design, New Solution

Bridge IC in a Cell phone Application


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New Design. New Solution.

Bridge IC in a Cell phone Application

CPUOnly fewwires forcontrol

BluetoothModule

High-SpeedUART

(5Mbps)

IrDA SIR

(1.152Mbps)

SC16IS752/762

* Coming soon, winCEdriver for SC16C75xsolution for portableapplications by Bsquare

B id IC S t


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Bridge ICs - Support

Application Notes

AN10397 : How to use the SC18IM700 to

control any I2C-bus device

AN10428 : UART-SPI Gateway for SPI slave bridges

AN10452 : Interfacing Bridge IC with microcontrollers

AN10462 : SPI programming for Bridge ICs

For more information about the Bridge ICs, visit our website:

www.standardics.nxp.com/products/bridges

www.standardics.nxp.com/support/interface

Software, User Manual, Demo Board

Extensive application support including online technical support:

[email protected]

Bridge ICs Development Kits


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Bridge ICs Development KitsAsk your distributor for one


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Visit our websitewww.standardics.nxp.com/interface

Survey Questions after the presentation


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Survey Questions after the presentationParticipate in specifying the next perfect part

What do you think about these possible bridges?

SPI (50MHz) to high speed USB (480Mbps) 8-bit parallel data bus to SDIO/MMC/CE ATA host controller SDIO Slave to UART

Please rate each bridge device we covered today SC16IS7xx IC/SPI to UART SC18IS600/601 SPI to IC Master SC18IM70x UART to IC Master SC18IS602 IC to SPI Master

Could you see using a bridge or UART in your next design ? Why cant your microcontroller do this function ? How does your application use serial ports ? If so, what benefit do you see in using it ?

What bridges would you like NXP to make next ? If you were to add more features to thebridges, what new features

Higher I2C speed

Faster SPI speed Lower operating voltage Different protocols Other features please specify

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Conclusion

As systems and markets converge, there is an increase in a multitude ofinterface

Technology is enabling the development and growth of a wide variety ofserial interfaces

More and more systems use several serial interfaces

UART, I2C, SPI, and IrDA are widely used for data communication

UARTs

Offer low voltage, low power, deep FIFO, high data rate, more channels, real-time error detection, flexible interrupt system, and small packages

Bridges Provide cost effective, ready to use, and seamless way to communicate between

the protocols

Result in greater system flexibility and significantly reduces software as well as

CPU overhead

Provide high speed UART with minimal host connection via I2C or SPI

application of uart

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