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XR22800 fiches techniques PDF

Exar - Hi-Speed USB to 10/100 Ethernet Bridge

Numéro de référence XR22800
Description Hi-Speed USB to 10/100 Ethernet Bridge
Fabricant Exar 
Logo Exar 





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XR22800 fiche technique
XR22800
Hi-Speed USB to 10/100 Ethernet Bridge
General Description
The XR22800 is a Hi-Speed USB 2.0 compound device with an embed-
ded hub and 3 downstream USB functions: 10/100 Ethernet MAC and
PHY, multi-master capable I2C controller, and an Enhanced Dedicated
GPIO Entity (EDGE) controller.
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.
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.
The multi-master capable I2C controller and EDGE controller (8 GPIOs)
can be accessed via the USB HID interface. The EDGE pins or I2C inter-
face can be used for controlling and monitoring other peripherals. Up to 2
EDGE pins can be configured as a PWM generator.
FEATURES
USB 2.0 Compliant Interface
10/100 Ethernet MAC and PHY
I2C Multi-master
Enhanced Dedicated GPIO Entity (EDGE)
Single +5.0V Power Supply Input
Regulated +3.3V Output Power
Single 25MHz Crystal
±15kV HBM ESD Protection on USB data
pins
±8kV HBM ESD Protection on all other pins
USB CDC-ECM and HID compliant
Custom Software Drivers
APPLICATIONS
USB to Ethernet Dongles
POS Terminals
Test Instrumentation
Networking
Factory Automation and Process Controls
Industrial Applications
Ordering Information – Back Page
Block Diagram
USB
25 MHz
XO
Upstream
USB Phy
OTP
Memory
USB
2.0
Hub
10/100
Ethernet
MAC
EDGE
Controller
Ethernet
Phy
I2C
Multimaster
Ethernet
I2C
EDGE
© 2016 Exar Corporation
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exar.com/XR22800
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