LAN8710I datasheet(9/79 Pages) SMSC

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MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR® Technology in a Small Footprint

Datasheet

SMSC LAN8710/LAN8710i

Revision 1.0 (04-15-09)

DATASHEET

Chapter 1 Introduction

1.1

General Terms and Conventions

The following is list of the general terms used in this document:

1.2

General Description

The LAN8710/LAN8710i is a low-power 10BASE-T/100BASE-TX physical layer (PHY) transceiver that

transmits and receives on unshielded twisted-pair cable. A typical system application is shown in

Figure 1.2. It is available in both extended commercial and industrial temperature operating versions.

The LAN8710/LAN8710i interfaces to the MAC layer using a variable voltage digital interface via the

standard MII (IEEE 802.3u). Support for RMII makes a reduced pin-count interface available. The

digital interface pins are tolerant to 3.6V.

The LAN8710/LAN8710i implements Auto-Negotiation to automatically determine the best possible

speed and duplex mode of operation. HP Auto-MDIX support allows using a direct connect LAN cable,

or a cross-over path cable.

The LAN8710 referenced throughout this document applies to both the extended commercial

temperature and industrial temperature components. The LAN8710i refers to only the industrial

temperature component.

BYTE

8-bits

FIFO

First In First Out buffer; often used for elasticity buffer

MAC

Media Access Controller

MII

Media Independent Interface

RMIITM

Reduced Media Independent InterfaceTM

N/A

Not Applicable

Indicates that a logic state is “don’t care” or undefined.

RESERVED

Refers to a reserved bit field or address. Unless otherwise noted, reserved

bits must always be zero for write operations. Unless otherwise noted, values

are not guaranteed when reading reserved bits. Unless otherwise noted, do

not read or write to reserved addresses.

SMI

Serial Management Interface

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