FLLXT1000BA.C4QE000 Intel, FLLXT1000BA.C4QE000 Datasheet - Page 54

• Manufacturer Part Number: FLLXT1000BA.C4QE000
• Manufacturer: Intel

Specifications of FLLXT1000BA.C4QE000

• Lead Free Status / RoHS Status: Not Compliant

LXT1000 — Gigabit Ethernet Transceiver
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TX_ER
TXD<7:0>
GTX_CLK
TX_EN
TP<A:D>
RXD[7:0]
TP[A:D]
Figure 25. 1000BASE-T False Carrier Detection
Figure 26. 1000BASE-T Transmission with Error
RX_CLK
RX_DV
RXER
(input)
(output)
(input)
(input)
(input)
(input)
2.5.4.1.3 False Carrier Detection
If the LXT1000 receives a false carrier, defined as a packet that does not have an SSD, it responds
by asserting RX_ER and driving an “0E” on the RX_D lines.
2.5.4.1.4 Error Handling
To drive an error, the MAC asserts TX_ER while TX_EN is active. The LXT1000 responds by
immediately terminating normal transmit activities, and driving error codes on the line. While
TX_ER is asserted, data on TX_D is ignored. As soon as TX_ER is de-asserted, the LXT1000
resumes normal transmission activities. If the LXT1000 receives error codes while receiving a
packet, it asserts the RX_ER signal to the MAC for as many symbol periods as the error is
received. When the LXT1000 stops receiving error codes from the line, it resumes normal receive
activities.
IDLE
IDLE
XX
55
PREAMBLE/SFD
XX
55
INVALID
SSD
XX
SSD
XX
5D
XX
XX
4DPAM5 Encoding
PACKET/FCS
XX
NON-IDLE
X
Error
XX
X
Error
0E
0E
0E
DON’T CARE
0E
csreset
0E
IDLE
0E
ESD
XX
Document #: 249276
Rev. Date: 07/20/01
XX
Revision #: 002
Datasheet
IDLE