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LAN8742A Datasheet(PDF) 7 Page - Microchip Technology

Part # LAN8742A
Description  Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR짰 Technology
Download  124 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN8742A Datasheet(HTML) 7 Page - Microchip Technology

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 2013-2015 Microchip Technology Inc.
DS00001989A-page 7
LAN8742A/LAN8742Ai
TABLE 2-1:
RMII SIGNALS
Num Pins
Name
Symbol
Buffer Type
Description
1
Transmit
Data 0
TXD0
VIS
The MAC transmits data to the transceiver using
this signal.
1
Transmit
Data 1
TXD1
VIS
The MAC transmits data to the transceiver using
this signal.
1
Transmit
Enable
TXEN
VIS
(PD)
Indicates that valid transmission data is present on
TXD[1:0].
1
Receive
Data 0
RXD0
VO8
Bit 0 of the 2 data bits that are sent by the trans-
ceiver 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.
1
Receive
Data 1
RXD1
VO8
Bit 1 of the 2 data bits that are sent by the trans-
ceiver 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.
1
Receive Error
RXER
VO8
This signal is asserted to indicate that an error was
detected somewhere in the frame presently being
transferred from the transceiver.
PHY Address 0
Configuration
Strap
PHYAD0
VIS
(PD)
This configuration strap sets the transceiver’s SMI
address.
See Note 1 for more information on configuration
straps.
Note:
Refer to Section 3.7.1, "PHYAD[0]: PHY
Address Configuration" for additional
information.


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