内容描述
LAN9220是功能齐全的单芯片10/100以太网控制器，专为需要性能，灵活性，易于集成和系统成本控制的嵌入式应用而设计。 LAN9220完全符合IEEE 802.3 10BASE-T和802.3u 100BASE-TX，并支持HP Auto-MDIX。 LAN9220的可变电压I / O信号可容纳较低的电压I / O信号，而无需电压电平转换器。
LAN9220包括一个集成的以太网MAC和PHY，以及一个类似于SRAM的高性能从接口。简单但功能强大的主机总线接口可与大多数常见的16位微处理器和微控制器以及具有16位外部总线的32位微处理器实现无缝连接。集成的校验和卸载引擎可为接收和发送的以太网帧自动生成16位校验和，从而将任务从CPU卸载。 LAN9220还包括大型发送和接收数据FIFO，以适应高延迟应用。此外，LAN9220内存缓冲区体系结构可通过优化数据包粒度来高效利用内存资源
Features
Non-PCI Ethernet controller for standard performance applications
16-bit interface
Burst-mode read support
Minimizes dropped packets
Internal buffer memory can store over 200 packets
Automatic PAUSE and back-pressure flow control
Minimizes CPU overhead
Supports Slave-DMA
Interrupt Pin with Programmable Hold-off timer
Reduces system cost and increases design flexibility
SRAM-like interface easily interfaces to most embedded CPU’s or SoC’s
Reduced Power Modes
Numerous power management modes
Wake on LAN
Magic packet wakeup
Wakeup indicator event signal
Link Status Change
Single chip Ethernet controller
Fully compliant with IEEE 802.3/802.3u standards
Integrated Ethernet MAC and PHY
10BASE-T and 100BASE-TX support
Full- and Half-duplex support
Full-duplex flow control
Backpressure for half-duplex flow control
Preamble generation and removal
Automatic 32-bit CRC generation and checking
Automatic payload padding and pad removal
Loop-back modes
Flexible address filtering modes
One 48-bit perfect address
64 hash-filtered multicast addresses
Pass all multicast
Promiscuous mode
Inverse filtering
Pass all incoming with status report
Disable reception of broadcast packets
Integrated 10/100 Ethernet PHY
Supports HP Auto-MDIX
Auto-negotiation
Supports energy-detect power down
Host bus interface
Simple, SRAM-like interface
16-bit data bus
16Kbyte FIFO with flexible TX/RX allocation
One configurable host interrupt
Miscellaneous features
Small form factor, 56-pin QFN lead-free RoHS Compliant package
Integrated 1.8V regulator
Integrated checksum offload engine
Mixed endian support
General Purpose Timer
Optional EEPROM interface
Support for 3 status LEDs multiplexed with Programmable GPIO signals
Single 3.3V Power Supply with Variable Voltage I/O
0°C to +70°C Commercial Temperature Support
应用领域
机顶盒
2021年第23届中国国际光电博览会同期CIOE光电子创新展将于9月1日-3日在深圳国际会展中心宝安新馆隆重开幕
2021年中国国际光电博览会将在9月1日-3日在深圳国际会展中心（宝安新馆）隆重开幕，展会面积达16,000,000平方米，汇聚超3,000家光电领域优质企业，吸引超95,000名专业观众前来参观。同期CIOE光电子创新展重点展示科研院所、高等院校和高新技术企业的光电创新产品及技术，是科研院所、高等院校和高新技术企业资源对接和成果转化的综合型平台，为有发展前景的市场和急需的光电子项目提供投融资渠道，并为更多孵化企业提供发展商机，为研发人员提供多层次的技术交流机会。
自展位预订工作开展以来，各大光电领域科研院所及高校纷纷鼎力支持，现展位已预定80%。
同期6展充分发挥展会集聚效应，知名科研院所高校齐聚
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