LAN8742AI-CZ datasheet(8/124 Pages) MICROCHIP

Part #	LAN8742Ai-CZ

Description	Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR짰 Technology

PDF	124 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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8 / 124 page

LAN8742A/LAN8742Ai

DS00001989A-page 8

 2013-2015 Microchip Technology Inc.

Note 1: Configuration strap values are latched on power-on reset and system reset. Configuration straps are iden-

tified 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 3.7, "Configuration Straps" for additional

information.

Carrier Sense /

Receive Data

Valid

CRS_DV

VO8

This signal is asserted to indicate the receive

medium is non-idle. When a 10BASE-T packet is

received, CRS_DV is asserted, but RXD[1:0] is

held low until the SFD byte (10101011) is received.

Note:

Per the RMII standard, transmitted data

is not looped back onto the receive data

pins in 10BASE-T half-duplex mode.

PHY Operat-

ing Mode 2

Configuration

Strap

MODE2

VIS

(PU)

Combined with MODE0 and MODE1, this configu-

ration strap sets the default PHY mode.

See Note 1 for more information on configuration

straps.

Note:

Refer to Section 3.7.2, "MODE[2:0]:

Mode Configuration" for additional

details.

TABLE 2-1:

RMII SIGNALS (CONTINUED)

Num Pins

Name

Symbol

Buffer Type

Description

LAN8742Ai-CZ Datasheet(PDF) 8 Page - Microchip Technology

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