描述 Description

Microchip’s LAN9252 is a 2/3-port EtherCAT device controller (ESC) with dual integrated Ethernet PHYs which each contain a full-duplex 100BASE-TX transceiver and support 100Mbps (100BASE-TX) operation. The LAN9252 supports HP Auto-MDIX, allowing the use of direct connect or cross-over LAN cables. 100BASE-FX is supported via an external fiber transceiver. This device provides system developers a cost-effective solution for realizing EtherCAT device solutions.

The LAN9252 includes a 3 port EtherCAT device controller with 4K bytes of Dual Port memory (DPRAM), 4 SyncManagers, 3 Fieldbus Memory Management Units (FMMUs) and a 64-bit Distributed Clock.

It supports 4 Process Data Interfaces - SPI/SQI, HBI and a 16 Bit Digital IO. SPI and SQI (high speed SPI) provide a low pin count synchronous slave interface that facilitates communication between the device and a host system. Whereas, the Host Bus Interface facilitates the same via a high-speed asynchronous slave interface. For simple digital modules without micro-controllers, the LAN9252 can also operate in Digital I/O Mode where 16 digital signals can be controlled or monitored by the EtherCAT master.

The LAN9252 can also be configured to operate via a single 3.3V supply utilizing an integrated 3.3V to 1.2V linear regulator. The internal linear regulator may also be disabled, allowing usage of a high efficiency external regulator for lower system power dissipation.

The LAN9252 is available in commercial, industrial and extended industrial temperature ranges and comes in either a 64 pin QFN or a 64 pin TQFP-EP.

特性 Features

? 2/3-port EtherCAT device controller with 3 Fieldbus Memory Management Units (FMMUs) and 4 SyncManagers
? Interfaces to 8/16-bit embedded controllers and 32-bit embedded controllers with an 8/16-bit bus
? Dual Integrated Ethernet PHYs with HP Auto-MDIX
? Cable diagnostic support
? 100 Base FX support via external transceiver
? 1.8V to 3.3V variable voltage I/O
? Integrated 1.2V core regulator for single 3.3V operation
? Low pin count, high integration and small body size package
Target Applications:
Motor Motion Control
Data Acquisition
Process/Factory Automation
Communication Modules & Interface Cards
Sensors
Power Grid Automation
Building Automation
Hydraulic & Pneumatic Valve Systems
Operator HMI Interfaces
? EtherCAT P - A fully compliant EtherCAT P example for UART communications and Motor Control
? EtherCAT Cortex M4F design example - Using SAM E54 & LAN9252

簡(jiǎn)介

LAN9252屬于集成電路（IC）的控制器。由制造生產(chǎn)的LAN9252控制器該系列產(chǎn)品主要用于在采用不同通信協(xié)議和/或信令方法的端點(diǎn)之間提供信息連接。示例包括將 I2C 總線連接到 UART，將 USB 連接到 I2C、SPI、以太網(wǎng)或 UART、以太網(wǎng) MAC 和 PHY 等的器件。此外，還包括用于通過(guò)為點(diǎn)對(duì)點(diǎn)通信設(shè)計(jì)的接口建立多路連接的器件，例如 USB 集線器控制器。