描述
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AF2001 Layer 2 Switching Chip
描述
AF2001 is a 16-port Gigabit Ethernet switching chip developed by Hangzhou Asicflag Electronic Technology Co., Ltd., integrating 16 sets of 1.25G SerDes/SGMII LVDS interfaces. Used to connect to external PHY or optical modules, providing a low-cost solution for desktop switching functions or WebSmart™ applications. 

Specification description: 
 - 16 10/100/1000M service interfaces support self-negotiation. Can be configured in SerDes mode or SGMI mode. SerDes mode can be connected to an external 1000M full-duplex optical module, and SGMI mode can be connected to an external 10/100/1000MPHY 
 - Dedicated Gigabit RGMII management interface (IMP port for short) 
 - Supports 9600-byte Jumbo frames and IEEE 802.3x frame-based flow control
 - Integrated 256KB high-performance data cache
 - Support 4K MAC address learning
 - Supports Port-Based VLANs and 4K IEEE 802.1Q VLANs 
 - Four queues per port, supporting QoS based on Port, DiffServ, MAC, Ethertype and IEEE802.1P
 - Supports spanning tree, fast spanning tree, and multiple spanning tree protocols (802.1D/1s/1w)
 - Support port mirroring
 - Supports four link aggregation groups
 - Supports IEEE 802.3ah
 - Supports IEEE 802.1X port security protocol 
 - Integrated Motorola SPI interface for register access
 - Supports EEPROM interface for chip configuration
 - Support MDIO interface
 - Low power consumption (maximum 2W), 1.2V/2.5V power supply
 - 256 pin FBGA package 

Application scenarios: 
 - Blade servers
 - plug-in devices
 - all-optical switches
 - industrial switches
 - embedded switches
 -  client devices