ELLXT971ABE.A4 Intel, ELLXT971ABE.A4 Datasheet - Page 47

• 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

Datasheet
Document Number: 249414-003
Revision Date: June 18, 2004
Figure 15. 100BASE-TX Data Path
Note: In 100BASE-FX mode, the LXT971A Transceiver transmits and receives NRZI signals across the
As shown in
the data to the network using MLT-3 line code. MLT-3 signals received from the network are de-
scrambled, decoded, and sent across the MII to the MAC.
LVPECL interface. An external 100BASE-FX transceiver module is required to complete the fiber
connection. To enable 100BASE-FX operation, auto-negotiation must be disabled and fiber mode
selected.
Standard Data Flow
Scrambler Bypass Data Flow
D0
D1
D2
D3
S0
S1
S2
S3
S4
Parallel
Parallel
Parallel
Parallel
Serial
Serial
Serial
Serial
to
to
to
to
Figure 15,
D0 D1 D2 D3
in 100BASE-TX mode, the LXT971A Transceiver scrambles and transmits
Intel
®
4B/5B
LXT971A Single-Port 10/100 Mbps PHY Transceiver
S0 S1 S2 S3 S4
S0 S1 S2 S3 S4
Scramble
Scramble
De-
MLT3
MLT3
pattern: 0, +1, 0, -1, 0, +1...
pattern: 0, +1, 0, -1, 0, +1...
All transitions must follow
All transitions must follow
0
0
No Transition = 0.
No Transition = 0.
Transition = 1.
Transition = 1.
+1
+1
B3467-01
0
0
-1
-1
47
0
0