PCI to USB 2.0 Hi-Speed Peripheral Controller

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Features

Overview

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PCI v3.0 - 33 MHz, 32-Bit Bus

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Descriptor based DMA Controllers

(4) for automatic data transfers

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Low Power 0.25µ process ideal for

USB Bus Powered Operation

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Lead Free Packaging

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14x14mm, 120 Pin TQFP Package

Conventional PCI Interface

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PCI v3.0 - 33 MHz, 32 Bit PCI Bus

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3.3V interface with 5V tolerance for

compatibility with both 3.3 and 5V

PCI systems

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Plug into existing PCI based systems

to instantly add a High Speed USB

2.0 Device Port

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PCI Host Option for simple PCI

Adapter to USB Peripheral

Conversions

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Straightforward PC Card to

ExpressCard

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Mastering PCI Interface

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Optional PCI Arbiter included

Hi-Speed USB 2.0 Interface

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USB 2.0 Peripheral Interface

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Hi-Speed USB with Sustained

Bandwidth of up to 40MBytes/sec (at

480 Mbps bursts)

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Backwards compatible to Full Speed

USB connections

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USB Auto-Enumeration Technology

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Support for Bulk, Isochronous, and

Interrupt Endpoints

Adding Hi-Speed USB 2.0 to Embedded PCI Designs

PLX Technology’s NET2280 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 NET2280 is one of the only

PCI based USB Peripheral Controllers available. With the NET2280, 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 NET2280 can either be a PCI Host or a PCI Adapter. As a PCI

Adapter, the NET2280 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 NET2280 is supported by several operating systems, additional

software modification can be minimized.

As a PCI Host, the NET2280 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 NET2280 has a built-in CPU, to configure and bring

up a PCI device. Furthermore, the Auto-Enumeration Technology in the NET2280

allows the USB device to be enumerated by a USB Host without any interaction on

the PCI side.

Tuned for Performance

The NET2280 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

NET2280’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

NET2280 allows

for its use in USB

Bus-Powered

devices.

Figure 1: NET2280 Block Diagram

Version 1.0 2005

NET2280