ELLXT971ABE.A4 Intel, ELLXT971ABE.A4 Datasheet - Page 45

• Manufacturer Part Number: ELLXT971ABE.A4
• Description: IC TRANS 3.3V ETHERNET 64-BGA
• Manufacturer: Intel
• Type: PHY Transceiverr

Specifications of ELLXT971ABE.A4

• Number Of Drivers/receivers: 1/1
• Protocol: IEEE 802
• Voltage - Supply: 3.14 V ~ 3.45 V
• Mounting Type: Surface Mount
• Package / Case: 64-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 870479

5.6.7
5.6.7.1
Datasheet
Document Number: 249414-003
Revision Date: June 18, 2004
Figure 13. Intel
Loopback
The LXT971A Transceiver provides the following loopback functions:
Figure 13
loopback path is not shown.) For more information on loopback functions, see
Sense, Loopback, and Collision Conditions” on page
Operational Loopback
•
•
•
•
Section 5.6.7.1, “Operational Loopback”
Section 5.6.7.2, “Internal Digital Loopback (Test Loopback)”
Operational loopback is provided for 10 Mbps half-duplex links when Register bit 16.8 = 0.
Data that the MAC (TXData) transmits loops back on the receive side of the MII (RXData).
Operational loopback is not provided for 100 Mbps links, full-duplex links, or when Register
16.8 = 1.
®
Intel® LXT971A Transceiver
LXT971A Transceiver Loopback Paths
shows LXT971A Transceiver operational and test loopback paths. (An internal digital
MII
Loopback
Operational
Loopback
10T
Intel
Digital
Block
®
LXT971A Single-Port 10/100 Mbps PHY Transceiver
Test Loopback
Loopback
100X
44.)
Analog
Block
Table 13, “Carrier
Driver
Driver
FX
TX
B3392-01
45