NET2272 PLX Technology, Inc., NET2272 Datasheet

NET2272

Manufacturer Part Number

NET2272

Description

Manufacturer

PLX Technology, Inc.

Datasheet

1.NET2272.pdf (2 pages)

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Download datasheet (259Kb)

Features

Overview

Hi-Speed USB 2.0 Interface

o 8/16 bit local bus connects gluelessly

o Hi-Speed USB 2.0 Peripheral Port

o Bursting DMA support facilitates

o High Bandwidth Isochronous Support

o Low Power(186mW) requirements

o Lowest standby power in its class

o Variable I/O voltage (1.8V to 5V)

o Lead Free Packaging

o 10x10mm 64-Pin TQFP Package

o 6x6mm, 64-Ball BGA Package

o USB 2.0 Peripheral Interface

o Hi-Speed USB with Sustained

o Backwards compatible to Full Speed

o Utilize up to 30 Independent USB

o Support for Bulk, Isochronous, and

to most CPUs, DSPs, and DMA

controllers

data transfers at 480 Mbps

ideal for USB Bus-Powered

Operation

(8.1µW)

Bandwidth of up to 40MBytes/sec (at

480 Mbps bursts)

USB connections

Endpoints using Dynamic Virtual

Endpoint Technology

Interrupt Endpoints

Integrated PHY

Version 1.3 2005

Optimized for Power and Performance

PLX Technology’s NET2272 Local Bus to Hi-Speed USB 2.0 Peripheral Controller

is designed for low power and high performance applications.

The NET2272’s low power requirements (186mW active, 8.1µW standby) make it

ideal for bus-powered or battery-powered applications. USB bus-powered devices

are allowed to draw a maximum 500mA (according to the USB specification) of

operating current from the PC through the USB cable. The NET2272’s low power

makes this requirement easy to support. Furthermore, the NET2272’s variable I/O

voltage (1.8V to 5V) makes it easy to connect to other low power components.

The NET2272 features the highest sustained data transfer speeds on USB – up to

40Mbytes/sec. An optional Split Bus mode allows for simultaneous DMA and CPU

access to the NET2272. In this mode, the external DMA controller is connected to

upper 8-bits of the data bus, while the local CPU is connect to the lower 8-bits of the

data bus. While DMA transactions are taking place, the local CPU can

simultaneously access any endpoint buffer not involving the DMA.

The NET2272’s Dynamic Virtual Endpoint Technology™ actualizes the maximum

number of endpoints (30) allowed by the USB specification. This feature provides

the flexibility for applications to route different data through different endpoints to

improve quality of service and ease of design.

Add Hi-Speed USB 2.0 to Your Device

The NET2272 can be used to easily add a USB 2.0 peripheral port to any local bus

based embedded system. The local bus interface of the NET2272 can often connect

Local Bus to USB 2.0 Hi-Speed Peripheral Controller

Figure 1: NET2272 Block Diagram

NET2272

gluelessly because

its interface looks

like an 8 or 16-bit

SRAM. Most

CPUs and DSPs

already have these

memory interfaces

integrated.

The NET2272’s

asynchronous bus

makes it frequency

independent.

Accessing the

NET2272’s

registers is as

simple as accessing

memory.

Related parts for NET2272

NET2272 Summary of contents

Page 1

... Add Hi-Speed USB 2.0 to Your Device The NET2272 can be used to easily add a USB 2.0 peripheral port to any local bus based embedded system. The local bus interface of the NET2272 can often connect Figure 1: NET2272 Block Diagram ...

Page 2

... Cell Phones and PDAs As cell phones and PDAs include more memory for storing rich media, faster USB transfer rates become more important. The NET2272 is designed to easily add Hi-Speed USB 2.0 functionality to today’s communication devices. With the USB Communications Device class driver, PCs can easily use cell phones, connected through USB, to setup a high speed wireless internet connection ...

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