PCI to USB 2.0 Hi-Speed Peripheral Controller

.

Features

Overview

o

PCI v3.0 – 66MHz, 32-bit Bus

Memory accessible from the USB

Host and the PCI Bus

o

Descriptor-based DMA Controllers

(4) for automatic data transfers

o

Low Power 0.18u process ideal for

USB Bus Powered Operation

o

Lead Free Packaging

o

14x14mm, 120-Pin QFP Package

Conventional PCI Interface

o

PCI v3.0 - 66MHz, 32-bit PCI Bus

o

3.3V interface with 5V tolerance for

compatibility with both 3.3 and 5V

PCI systems

o

Plug into existing PCI based systems

to instantly add a High Speed USB

2.0 Device Port

o

PCI Host Option for simple PCI

Adapter to USB Peripheral

Conversions

o

Straightforward PC Card to

ExpressCard

o

Mastering PCI Interface

o

Optional PCI Arbiter included

Hi-Speed USB 2.0 Interface

o

USB 2.0 Peripheral Interface

o

Hi-Speed USB with Sustained

Bandwidth of up to 40MBytes/sec (at

480 Mbps bursts)

o

Backwards compatible to Full Speed

USB connections

o

Utilize up to 30 Independent USB

Endpoints using Dynamic Virtual

Endpoint Technology

TM

o

USB Auto-Enumeration Technology

o

Support for Bulk, Isochronous, and

Interrupt Endpoints

Simplified Hardware Design

PLX Technology’s NET2282 PCI to Hi-Speed USB 2.0 Peripheral Controller is

designed for easy integration with existing PCI based systems and silicon. While

there are many PCI-based USB hosts on the market, the NET2282 is one of the only

PCI-based USB peripheral controllers available. With the NET2282, adding a Hi-

Speed USB Device port is just a matter of connecting the PCI signals with the same

name together.

The PCI bus on the NET2282 can be either a PCI host or a PCI adapter. As a PCI

adapter, the NET2282 can fit into any standard PCI slot (3.3 or 5 Volts). This means

that any system with a PCI bus can instantly add a USB 2.0 peripheral port in

minutes. As the NET2282 is supported by several operating systems, additional

software modification can be minimized.

As a PCI host, the NET2282 can be used to convert existing PCI cards or CardBus

adapters to stand alone USB devices or ExpressCard adapters. Rather than relying

on a host PC’s PCI chipset, the NET2282 has all the resources, including emulated

main memory, to configure and bring up a PCI device. Furthermore, the Auto-

Enumeration Technology in the NET2282 allows the USB device to be enumerated

by a USB host without any interaction on the PCI side.

Tuned for Performance

The NET2282 is designed for high performance transfers, with its USB port able to

match the bandwidth of most PCI chips.

Four mastering,

descriptor

based DMA

controllers,

along with the

NET2282’s true

FIFO structure,

allow it to

sustain transfers

of up to 40

MBytes/sec.

Even at these

speeds, and the

full PCI bus

running, the

low power

consumption of

the NET2282

allows for its

use in USB

bus-powered

devices.

Figure 1: NET2282 Block Diagram

Version 1.4 2005

NET2282