L-ET1011C2-CI-D LSI, L-ET1011C2-CI-D Datasheet - Page 61

• Manufacturer Part Number: L-ET1011C2-CI-D
• Manufacturer: LSI

Specifications of L-ET1011C2-CI-D

• Number Of Receivers: 1
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / Rohs Status: Compliant

September 2007
LSI Corporation
Register Description
Register Functions/Settings
Table 52. Diagnostics Control Register (Link Analysis Mode)—Address 30
1. This is the cable length estimate when the link is active (maximum of 155 m). The values of 0x00 to 0x1f correspond to 0 m—155 m in 5 m increments.
2. Excessive pair skew is detected by determining that the scrambler has not acquired. It is possible for other scrambler acquisition errors to be mistaken for
The following table shows the mapping of the transmitter and receiver for MDI and MDI-X configuration
for 1000Base-T when pairs C and D are not swapped and are swapped.
Table 53. MDI/MDI-X Configuration for 1000Base-T with C and D Swapped/Not Swapped
TRD_[0:7]_[0]+/–
TRD_[0:7]_[1]+/–
TRD_[0:7]_[2]+/–
TRD_[0:7]_[3]+/–
15:12 Reserved
The values of 0x20 to 0x3e are reserved for future use, e.g., cable lengths of 160 m—315 m. The result may be invalid for a 10Base-T link. If the result is
invalid, a value of 0x3f is returned.
excessive pair skew.
10:5
Bit
11
4
3
2
1
0
Pair Swap on Pairs C
and D
Cable Length
Polarity on Pair D
Polarity on Pair C
Polarity on Pair B
Polarity on Pair A
Excessive Pair Skew 1 = Excessive pair skew (1000Base-T only).
Pin
Name
Transmit A+/–Receive
Transmit B+/–Receive
(continued)
MDI Configuration
Transmit C+/–
Transmit D+/–
Receive D+/–
Receive C+/–
1 = Pairs C and D are swapped (1000Base-T only).
0 = Pairs C and D are not swapped (1000Base-T only).
Cable length when link is active.
1 = Polarity on pair D is normal (1000Base-T only).
0 = Polarity on pair D is inverted (1000Base-T only).
1 = Polarity on pair C is normal (1000Base-T only).
0 = Polarity on pair C is inverted (1000Base-T only).
1 = Polarity on pair B is normal (1000Base-T only).
0 = Polarity on pair B is inverted (1000Base-T only).
1 = Polarity on pair A is normal (1000Base-T only).
0 = Polarity on pair A is inverted (1000Base-T only).
0 = Not excessive pair skew (1000Base-T only).
(continued)
Pair C and D Are Not Swapped
Diagnostics Control Register (Link Analysis Mode)
A+/–
B+/–
Description
Configuration
Transmit A+/–
Transmit D+/–
Transmit B+/–
Transmit C+/–
Receive A+/–
Receive D+/–
Receive B+/–
Receive C+/–
MDI-X
—
MDI Configuration
Transmit A+/–
Transmit D+/–
Transmit B+/–
Transmit C+/–
Receive A+/–
Receive D+/–
Receive B+/–
Receive C+/–
Pair C and D Are Swapped
Gigabit Ethernet Transceiver
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
Default
Configuration
Transmit A+/–
Transmit D+/–
Transmit B+/–
Transmit C+/–
Receive A+/–
Receive D+/–
Receive B+/–
Receive C+/–
—
0
0
0
0
0
0
0
MDI-X
Table 53.
Notes
See
—
—
—
—
—
1
2
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