[原创] Microchip LAN9252 2－3端口EtherCAT控制器解决方案

Microchip公司的LAN9252是集成了两路以太网PHY的2/3端口EtherCAT从控制器,包括了全双工100BASE-TX收发器和支持100Mbps (100BASE-TX),支持3个Fieldbus存储器管理单元(FMMU)和4个SyncManagers,主要用在马达控制,过程/工厂自动化,通信模块,接口卡,传感器,水和气动阀门系统等.本文介绍了AN9252产品亮点和主要优势, 系统框图和内部框图, 工作模式图和电源连接图,以及评估板EVB-LAN9252-HBI-SPI-SQI-GPIO EtherCAT® HBI/SPI+GPIO主要特性,框图,电路图和材料清单.

The LAN9252 is a 2/3-port EtherCAT slave controller with dual integrated Ethernet PHYs which each contain a fullduplex 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.

The LAN9252 includes an EtherCAT slave controller with 4K bytes of Dual Port memory (DPRAM) and 3 Fieldbus Memory Management Units (FMMUs). Each FMMU performs the task of mapping logical addresses to physical addresses.

The EtherCAT slave controller also includes 4 SyncManagers to allow the exchange of data between the EtherCAT master and the local application. Each SyncManager’s direction and mode of operation is configured by the EtherCAT master.
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