Datasheet > XR22801

XR22801

更新时间： 2024-11-03 01:19:19

品牌	Logo	应用领域
艾科嘉 - EXAR		局域网（LAN）标准
页数	文件大小	规格书
42页	418K
描述
Hi-Speed USB to 10/100 Ethernet Bridge

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中文翻译

获取价格

数据手册

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XR22801 数据手册

XR22801

Hi-Speed USB to 10/100 Ethernet Bridge

FEATURES

General Description

 USB 2.0 Compliant Interface

The XR22801 is a Hi-Speed USB 2.0 compound device with an embed-

ded hub and 4 downstream USB functions: 10/100 Ethernet MAC and

 10/100 Ethernet MAC and PHY

 Enhanced UART

PHY, UART, multi-master capable I C controller, and an Enhanced Dedi-

cated GPIO Entity (EDGE) controller.

 I C Multi-master

 Enhanced Dedicated GPIO Entity (EDGE)

 Single +5.0V Power Supply Input

 Regulated +3.3V Output Power

 Single 25MHz Crystal

The upstream USB interface has an integrated USB 2.0 PHY and device

controller that is compliant with both Hi-Speed (480Mbps) and Full-Speed

(12Mbps) USB 2.0. The vendor ID, product ID, power mode, remote

wakeup support and maximum power consumption are amongst the val-

ues that can be programmed using the on-chip One-Time Programmable

(OTP) memory.

 ±15kV HBM ESD Protection on USB data

pins

The 10/100 Ethernet MAC and PHY is compliant with IEEE 802.3 and

supports auto-negotiation, auto-MDIX, checksum offload, auto-polarity

correction in 10Base-T and remote wakeup capabilities.

 ±±kV HBM ESD Protection on all other pins

 USB CDC-ACM, CDC-ECM and HID

compliant

 Custom Software Drivers

The enhanced UART has a maximum data rate of 15 Mbps. Using a frac-

tional baud rate generator, any baud rate between 300 bps and 15 Mbps

can be accurately generated. In addition, the UART has a large 1024-byte

TX FIFO and RX FIFO to optimize the overall data throughput for various

applications. The automatic RS485 control feature simplifies both the

hardware and software for half-duplex RS-485 applications. If required,

the multi-drop (9-bit) mode feature further simplifies typical multi-drop

applications by enabling / disabling the UART receiver depending on the

address byte received.

APPLICATIONS

 USB to Ethernet Dongles

 POS Terminals

 Test Instrumentation

 Networking

 Factory Automation and Process Controls

 Industrial Applications

The multi-master capable I C controller and EDGE controller (up to 16

GPIOs) can be accessed via the USB HID interface. The EDGE pins or

Ordering Information – Back Page

I C interface can be used for controlling and monitoring other peripherals.

Up to 2 EDGE pins can be configured as a PWM generator.

Block Diagram

10/100

Ethernet

Controller

Ethernet

I²C

Ethernet

Phy

25 MHz

I²C

Multimaster

USB

2.0

Hub

USB

Upstream

USB Phy

UART /

Modem IO

UART /

EDGE

OTP

EDGE

Memory

Controller

1 / 42

exar.com/XR22801

Rev 1B

12 3 4 5 6 7...42

中文翻译

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与XR22801相关器件

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XR22802	EXAR	获取价格	Hi-Speed USB to 10/100 Ethernet Bridge
XR22802IL56-0A-EB	EXAR	获取价格	EVAL BOARD HI-SPEED USB TO 10/10
XR22802IL56-F	EXAR	获取价格	Hi-Speed USB to 10/100 Ethernet Bridge
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