WJLXT972ALC.A4-857341 Cortina Systems Inc, WJLXT972ALC.A4-857341 Datasheet - Page 36

• Manufacturer Part Number: WJLXT972ALC.A4-857341
• Description: TXRX ETH 10/100 SGL PORT 64-LQFP
• Manufacturer: Cortina Systems Inc

Specifications of WJLXT972ALC.A4-857341

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1008-1042

LXT972A PHY
Datasheet
249186, Revision 5.2
13 September 2007
Figure 12
Figure 13
Cortina Systems
100BASE-TX Data Path
Figure 13
100BASE-TX Reception with No Errors
As shown in
asserts RX_ER.
®
Standard Data Flow
Scrambler Bypass Data Flow
D0
D1
D2
D3
S0
S1
S2
S3
S4
RXD<3:0>
LXT972A Single-Port 10/100 Mbps PHY Transceiver
RX_CLK
RX_DV
RX_ER
Parallel
Parallel
Parallel
Parallel
Serial
Serial
Serial
Serial
shows normal reception with no errors.
to
to
to
to
Figure
preamble SFD SFD DA
D0 D1 D2 D3
14, when the LXT972A PHY receives invalid symbols from the line, it
DA
4B/5B
DA
DA
S0 S1 S2 S3 S4
S0 S1 S2 S3 S4
CRC
CRC
Scramble
Scramble
CRC
De-
5.7 100 Mbps Operation
CRC
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
B3468-01
No Transition = 0.
No Transition = 0.
Transition = 1.
Transition = 1.
+1
+1
B3467-01
0
0
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-1
-1
0
0