Datasheet > LAN9312

LAN9312

更新时间： 2024-10-03 14:55:11

品牌	Logo	应用领域
美国微芯 - MICROCHIP		局域网局域网（LAN）标准
页数	文件大小	规格书
8页	290K
描述
The LAN9312 is a full featured, 2 port 10/100 managed Ethernet switch designed for embedded applic

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LAN9312 数据手册

LAN9312

High Performance

Two Port 10/100 Managed Ethernet Switch with 32-Bit

Non-PCI CPU Interface

Data Brief

PRODUCT FEATURES



Ports

Highlights

—

2 internal 10/100 PHYs with HP Auto-MDIX support



High performance and full featured 2 port switch with

VLAN, QoS packet prioritization, Rate Limiting, IGMP

monitoring and management functions

Fully compliant with IEEE 802.3 standards

10BASE-T and 100BASE-TX support

Full and half duplex support

Full duplex flow control



Easily interfaces to most 32-bit embedded CPU’s

Backpressure (forced collision) half duplex flow control

Automatic flow control based on programmable levels

Automatic 32-bit CRC generation and checking

Automatic payload padding

2K Jumbo packet support

Programmable interframe gap, flow control pause value

Full transmit/receive statistics

Auto-negotiation

Automatic MDI/MDI-X

Loop-back mode

Unique Virtual PHY feature simplifies software

development by mimicking the multiple switch ports

as a single port MAC/PHY



Integrated IEEE 1588 Hardware Time Stamp Unit

Target Applications



Cable, satellite, and IP set-top boxes

Digital televisions



High-performance host bus interface

Digital video recorders

—

Provides in-band network communication path

Access to management registers

Simple, SRAM-like interface

VoIP/Video phone systems

Home gateways

32-bit data bus

Test/Measurement equipment

Industrial automation systems

Big, little, and mixed endian support

Large TX and RX FIFO’s for high latency applications

Programmable water marks and threshold levels

Host interrupt support

Key Benefits

Ethernet Switch Fabric



IEEE 1588 Hardware Time Stamp Unit



—

Global 64-bit tunable clock

Master or slave mode per port

Time stamp on TX or RX of Sync and Delay_req

packets per port, Timestamp on GPIO

64-bit timer comparator event generation (GPIO or IRQ)

—

32K buffer RAM

1K entry forwarding table

Port based IEEE 802.1Q VLAN support (16 groups)

–

Programmable IEEE 802.1Q tag insertion/removal

—

IEEE 802.1d spanning tree protocol support

QoS/CoS Packet prioritization



Comprehensive Power Management Features

—

Wake on LAN

Wake on link status change (energy detect)

Magic packet wakeup

–

4 dynamic QoS queues per port

Input priority determined by VLAN tag, DA lookup,

TOS, DIFFSERV or port default value

Programmable class of service map based on input

priority

Wakeup indicator event signal

–

Other Features

—

General Purpose Timer

Serial EEPROM interface (I²C master or Microwire^TM

master) for non-managed configuration

Programmable GPIOs/LEDs

–

Remapping of 802.1Q priority field on per port basis

Programmable rate limiting at the ingress/egress

ports with random early discard, per port / priority

—

IGMP v1/v2/v3 monitoring for Multicast packet filtering

Programmable filter by MAC address



Single 3.3V power supply

Available in Commercial Temp. Range



Switch Management

—

Port mirroring/monitoring/sniffing: ingress and/or egress

traffic on any ports or port pairs

—

Fully compliant statistics (MIB) gathering counters

Control registers configurable on-the-fly

SMSC LAN9312

Revision 2.0 (02-14-13)

PRODUCT PREVIEW

12 3 4 5 6 7 8

中文翻译

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与LAN9312相关器件

型号	品牌	获取价格	描述	数据表
LAN9312I-NU-TR	MICROCHIP	获取价格	LAN Switching Circuit
LAN9312I-NZW-TR	MICROCHIP	获取价格	LAN Switching Circuit
LAN9312-NU-TR	MICROCHIP	获取价格	DATACOM, LAN SWITCHING CIRCUIT
LAN9312-NZW	MICROCHIP	获取价格	High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
LAN9312-NZW-TR	MICROCHIP	获取价格	DATACOM, LAN SWITCHING CIRCUIT
LAN9313	MICROCHIP	获取价格	Three Port 10/100 Managed Ethernet Switch with MII
LAN9313	SMSC	获取价格	Three Port 10/100 Managed Ethernet Switch with MII
LAN9313I	SMSC	获取价格	Three Port 10/100 Managed Ethernet Switch with MII
LAN9313I	MICROCHIP	获取价格	Three Port 10/100 Managed Ethernet Switch with MII
LAN9313I-NZW	MICROCHIP	获取价格	Three Port 10/100 Managed Ethernet Switch with MII

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