LAN8810 datasheet(7/83 Pages) MICROCHIP

7 / 83 page

 2009-2015 Microchip Technology Inc.

DS00001870B-page 7

LAN8810/LAN8810I

Note 2-1

Configuration strap values are latched on hardware reset. Configuration straps are identified by an

underlined symbol name. Signals that function as configuration straps must be augmented with an

external resistor when connected to a load. Refer to Section 3.8, "Configuration," on page 23 for

additional information.

Receive Data 6

RXD6

VO6

The PHY transfers data to the MAC using this

signal.

Receive Data 7

RXD7

VO6

The PHY transfers data to the MAC using this

signal.

Receive Data

Valid

RXDV

VO6

Indicates that recovered and decoded data is being

presented on the receive data pins.

Receive Error

RXER

VO6

Asserted to indicate an error has been detected in

the frame presently being transferred from the

PHY.

Receive Clock

RXCLK

VO6

Used to transfer data to the MAC.

GMII (1000BASE-T): 125MHz

MII (100BASE-TX): 25MHz

MII (10BASE-T): 2.5MHz

Collision Detect

COL

VO6

Asserted to indicate detection of a collision

condition. (used in half-duplex mode only)

Carrier Sense

CRS

VO6

Indicates detection of carrier. (used in half-duplex

mode only)

TABLE 2-2:

SERIAL MANAGEMENT INTERFACE (SMI) PINS

Num

Pins

Name

Symbols

Buffer

Type

Description

SMI Clock

MDC

VIS

(PD)

Serial Management Interface clock.

SMI Data Input/

Output

MDIO

VIS/VO8

(PU)

Serial Management Interface data input/output.

TABLE 2-1:

GMII INTERFACE PINS (CONTINUED)

Num

Pins

Name

Symbols

Buffer

Type

Description

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