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LAN9312-NU: 产品描述Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch; 产品类别无线/射频/通信电信电路; 文件大小272KB，共9页; 制造商Microchip(微芯科技); 官网地址https://www.microchip.com

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LAN9312-NU概述

Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch

LAN9312-NU规格参数

参数名称	属性值
零件包装代码	QFP
包装说明	TFQFP, TQFP128,.63SQ,16
针数	128
Reach Compliance Code	compliant
JESD-30 代码	S-PQFP-G128
长度	14 mm
功能数量	1
端子数量	128
最高工作温度	70 °C
最低工作温度
封装主体材料	PLASTIC/EPOXY
封装代码	TFQFP
封装等效代码	TQFP128,.63SQ,16
封装形状	SQUARE
封装形式	FLATPACK, THIN PROFILE, FINE PITCH
电源	3.3 V
认证状态	Not Qualified
座面最大高度	1.2 mm
最大压摆率	0.295 mA
标称供电电压	3.3 V
表面贴装	YES
电信集成电路类型	LAN SWITCHING CIRCUIT
温度等级	COMMERCIAL
端子形式	GULL WING
端子节距	0.4 mm
端子位置	QUAD
宽度	14 mm
Base Number Matches	1

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LAN9311/LAN9311i

Two Port 10/100 Managed Ethernet Switch with 16-Bit

Non-PCI CPU Interface

PRODUCT FEATURES

Highlights



Data Brief

Ports

—



High performance and full featured 2 port switch with

VLAN, QoS packet prioritization, Rate Limiting, IGMP

monitoring and management functions

Easily interfaces to most 16-bit embedded CPU’s

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

Digital video recorders

VoIP/Video phone systems

Home gateways

Test/Measurement equipment

Industrial automation systems

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

Fully compliant with IEEE 802.3 standards

10BASE-T and 100BASE-TX support

Full and half duplex support

Full duplex flow control

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

Provides in-band network communication path

Access to management registers

Simple, SRAM-like interface

16-bit data bus

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

High-performance host bus interface

—

Key Benefits



Ethernet Switch Fabric

— 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

– 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

– 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

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)



Comprehensive Power Management Features

—

Wake on LAN

Wake on link status change (energy detect)

Magic packet wakeup

Wakeup indicator event signal



Other Features

— General Purpose Timer

— Serial EEPROM interface (I

C master or Microwire

master) for non-managed configuration

— Programmable GPIOs/LEDs



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

Single 3.3V power supply

Available in Commercial & Industrial Temp. Ranges

SMSC LAN9311/LAN9311i

PRODUCT PREVIEW

Revision 2.0 (02-14-13)

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Order Numbers:

LAN9311-NU For 128-Pin, VTQFP Lead-Free RoHS Compliant Package (0 TO 70°C Temp Range)

LAN9311-NZW For 128-Pin, XVTQFP Lead-Free RoHS Compliant Package (0 TO 70°C Temp Range)

LAN9311i-NZW For 128-Pin, XVTQFP Lead-Free RoHS Compliant Package (-40 TO 85°C Temp Range)

LAN9311-NU-TR For 128-Pin, VTQFP Lead-Free RoHS Compliant Package (0 TO 70°C Temp Range)

LAN9311-NZW-TR For 128-Pin, XVTQFP Lead-Free RoHS Compliant Package (0 TO 70°C Temp Range)

LAN9311i-NZW-TR For 128-Pin, XVTQFP Lead-Free RoHS Compliant Package (-40 TO 85°C Temp Range)

TR indicates tape & reel option.

This product meets the halogen maximum concentration values per IEC61249-2-21

For RoHS compliance and environmental information, please visit

www.smsc.com/rohs

Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for

construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC

reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications

before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent

rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated

version of SMSC's standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors

known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not

designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property

damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of

this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC is a registered

trademark of Standard Microsystems Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.

The Microchip name and logo, and the Microchip logo are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE

OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL

DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT;

TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD

TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

Revision 2.0 (02-14-13)

PRODUCT PREVIEW

SMSC LAN9311/LAN9311i

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

General Description

The LAN9311/LAN9311i is a full featured, 2 port 10/100 managed Ethernet switch designed for

embedded applications where performance, flexibility, ease of integration and system cost control are

required. The LAN9311/LAN9311i combines all the functions of a 10/100 switch system, including the

switch fabric, packet buffers, buffer manager, media access controllers (MACs), PHY transceivers, and

host bus interface. The LAN9311/LAN9311i complies with the IEEE 802.3 (full/half-duplex 10BASE-T

and 100BASE-TX) Ethernet protocol specification and 802.1D/802.1Q network management protocol

specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications.

At the core of the LAN9311/LAN9311i is the high performance, high efficiency 3 port Ethernet switch

fabric. The switch fabric contains a 3 port VLAN layer 2 switch engine that supports untagged, VLAN

tagged, and priority tagged frames. The switch fabric provides an extensive feature set which includes

spanning tree protocol support, multicast packet filtering and Quality of Service (QoS) packet

prioritization by VLAN tag, destination address, port default value or DIFFSERV/TOS, allowing for a

range of prioritization implementations. 32K of buffer RAM allows for the storage of multiple packets

while forwarding operations are completed, and a 1K entry forwarding table provides ample room for

MAC address forwarding tables. Each port is allocated a cluster of 4 dynamic QoS queues which allow

each queue size to grow and shrink with traffic, effectively utilizing all available memory. This memory

is managed dynamically via the buffer manager block within the switch fabric. All aspects of the switch

fabric are managed via the switch fabric configuration and status registers, which are indirectly

accessible via the memory mapped system control and status registers.

The LAN9311/LAN9311i provides 2 switched ports. Each port is fully compliant with the IEEE 802.3

standard and all internal MACs and PHYs support full/half duplex 10BASE-T and 100BASE-TX

operation. The LAN9311/LAN9311i provides 2 on-chip PHYs, 1 Virtual PHY and 3 MACs. The Virtual

PHY and the Host MAC are used to connect the LAN9311/LAN9311i switch fabric to the host bus

interface. All ports support automatic or manual full duplex flow control or half duplex backpressure

(forced collision) flow control. Automatic 32-bit CRC generation/checking and automatic payload

padding are supported to further reduce CPU overhead. 2K jumbo packet (2048 byte) support allows

for oversized packet transfers, effectively increasing throughput while deceasing CPU load. All MAC

and PHY related settings are fully configurable via their respective registers within the

LAN9311/LAN9311i.

The integrated Host Bus Interface (HBI) easily interfaces to most 16-bit embedded CPU’s via a simple

SRAM like interface, enabling switch fabric access via the internal Host MAC and allowing full control

over the LAN9311/LAN9311i via memory mapped system control and status registers. The HBI

supports 16-bit operation with big, little, and mixed endian operations. Four separate FIFO mechanisms

(TX/RX Data FIFO’s, TX/RX Status FIFO’s) interface the HBI to the Host MAC and facilitate the

transferring of packet data and status information between the host CPU and the switch fabric. The

LAN9311/LAN9311i also provides power management features which allow for wake on LAN, wake on

link status change (energy detect), and magic packet wakeup detection. A configurable host interrupt

pin allows the device to inform the host CPU of any internal interrupts.

The LAN9311/LAN9311i contains an I

C/Microwire master EEPROM controller for connection to an

optional EEPROM. This allows for the storage and retrieval of static data. The internal EEPROM

Loader can be optionally configured to automatically load stored configuration settings from the

EEPROM into the LAN9311/LAN9311i at reset.

In addition to the primary functionality described above, the LAN9311/LAN9311i provides additional

features designed for extended functionality. These include a configurable 16-bit General Purpose

Timer (GPT), a 32-bit 25MHz free running counter, a 12-bit configurable GPIO/LED interface, and IEEE

1588 time stamping on all ports and select GPIOs. The IEEE time stamp unit provides a 64-bit tunable

clock for accurate PTP timing and a timer comparator to allow time based interrupt generation.

The LAN9311/LAN9311i’s performance, features and small size make it an ideal solution for many

applications in the consumer electronics and industrial automation markets. Targeted applications

include: set top boxes (cable, satellite and IP), digital televisions, digital video recorders, voice over IP

and video phone systems, home gateways, and test and measurement equipment. System-level and

block-level diagrams of the LAN9311/LAN9311i can be seen in on the following pages.

SMSC LAN9311/LAN9311i

PRODUCT PREVIEW

Revision 2.0 (02-14-13)

LAN9312-NU

LAN9312-NU在线购买

LAN9312-NU概述

LAN9312-NU规格参数

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