LAN8740 datasheet(8/136 Pages) MICROCHIP

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LAN8740A/LAN8740Ai

DS00001987A-page 8

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Receive

Data 0

RXD0

VO8

Bit 0 of the 4 (2 in RMII mode) data bits that are

sent by the transceiver on the receive path.

PHY Operat-

ing Mode 0

Configuration

Strap

MODE0

VIS

(PU)

Combined with MODE1 and MODE2, 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.

Receive

Data 1

RXD1

VO8

Bit 1 of the 4 (2 in RMII mode) data bits that are

sent by the transceiver on the receive path.

PHY Operat-

ing Mode 1

Configuration

Strap

MODE1

VIS

(PU)

Combined with MODE0 and MODE2, 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.

Receive

Data 2

(MII Mode)

RXD2

VO8

Bit 2 of the 4 (in MII mode) data bits that are sent by

the transceiver on the receive path.

Note:

This signal is not used in RMII mode.

Power Man-

agement Event

Output

nPME

VO8

When in RMII mode, this pin may be used alterna-

tively as an active low Power Management Event

(PME) output.

Note:

The nPME signal can be optionally con-

figured to output on the LED1, LED2, or

RXD2/nPME/nINTSEL pins. Refer to

Section 3.8.4, "Wake on LAN (WoL)" for

additional nPME and WoL information.

MII/RMII Mode

Select Configu-

ration Strap

RMIISEL

VIS

(PD)

This configuration strap selects the MII or RMII

mode of operation. When strapped low to VSS, MII

mode is selected. When strapped high to VDDIO

RMII mode is selected.

See Note 1 for more information on configuration

straps.

Note:

Refer to Section 3.7.3, "RMIISEL:

MII/RMII Mode Configuration" for addi-

tional details.

TABLE 2-1:

MII/RMII SIGNALS (CONTINUED)

Num Pins

Name

Symbol

Buffer Type

Description

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