LAN8710A-EZK-TR SMSC, LAN8710A-EZK-TR Datasheet - Page 42

• Manufacturer Part Number: LAN8710A-EZK-TR
• Description: Ethernet ICs 10/100 Ethernet XCVR w/HPAutoMDIX FlexPwr
• Manufacturer: SMSC
• Type: Single Chipr

Specifications of LAN8710A-EZK-TR

• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Transceivers
• Number Of Transceivers: 1
• Standard Supported: IEEE 802.3 or IEEE 802.3u
• Data Rate: 125 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.6 V or 3 V
• Maximum Operating Temperature: + 85 C
• Package / Case: QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.2 (11-10-10)
3.8.9.2
3.8.9.3
Ethernet
Ethernet
10/100
10/100
MAC
MAC
Far Loopback
This special test mode is only available when operating in RMII mode. When the RMIISEL
configuration strap is configured for MII mode, the SMI can be used to override this setting as
described in
Far loopback is a special test mode for MDI (analog) loopback as indicated by the blue arrows in
Figure
Control/Status Register
looped back out to the link partner. The digital interface signals on the local MAC interface are isolated.
Connector Loopback
The device maintains reliable transmission over very short cables, and can be tested in a connector
loopback as shown in
an the output of the transformer back to the receiver inputs, and this loopback will work at both 10 and
100.
TXD
TXD
3.11. The far loopback mode is enabled by setting the
RXD
RXD
X
X
Section
Digital
Digital
Ethernet Transceiver
Ethernet Transceiver
Figure 3.11 Connector Loopback Block Diagram
Far-end system
3.7.3.
Figure 3.10 Far Loopback Block Diagram
Figure
to “1”. In this mode, data that is received from the link partner on the MDI is
SMSC
SMSC
3.11. An RJ45 loopback cable can be used to route the transmit signals
Analog
Analog
DATASHEET
Small Footprint MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR
42
TX
RX
TX
RX
XFMR
XFMR
RJ45 Loopback Cable.
Created by connecting pin 1 to pin 3
and connecting pin 2 to pin 6.
FARLOOPBACK
CAT-5
SMSC LAN8710A/LAN8710Ai
1
2
3
4
5
6
7
8
bit of the
Partner
Link
Datasheet
®
Technology
Mode