XR22800
XR22800 is Hi-Speed USB to 10/100 Ethernet Bridge manufactured by Exar.
Description
The XR22800 is a Hi-Speed USB 2.0 pound device with an embedded 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 pliant 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 values that can be programmed using the on-chip One-Time Programmable (OTP) memory.
The 10/100 Ethernet MAC and PHY is pliant 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 interface 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 pliant 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
- ±15k V HBM ESD Protection on USB data pins
- ±8k V HBM ESD Protection on all other pins
- USB CDC-ECM and HID pliant
- 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
25 MHz XO
Upstream USB Phy
OTP Memory
USB 2.0 Hub
10/100 Ethernet
EDGE Controller
Ethernet Phy
I2C Multimaster
Ethernet
I2C EDGE
© 2016 Exar...
