TLK110 Datasheet, PDF (78/104 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer

TLK110
SLLS901A – DECEMBER 2011 – REVISED FEBRUARY 2012
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8.5.11 Cable Diagnostic Amplitude Results Register 4 (CDARR4)
This register provides the peaks amplitude measurement after the execution of the TDR. The values of
this register are valid after reading 1 in Diagnostic Done bit 1 in register CDCR (0x1E).
Table 8-45. Cable Diagnostic Amplitude Results Register 4 (CDARR4), address 0x0188
BIT NAME
15 RESERVED
14:8 TPRD Peak
Amplitude 3
7 RESERVED
6:0 TPRD Peak
Amplitude 2
DEFAULT
0,RO
<000
0000>,RO
0,RO
<000
0000>,RO
FUNCTION
RESERVED: Writes ignored, read as 0.
Amplitude of the Third peak discovered by the TDR mechanism on Receive Channel (TPRD).
The value of these bits is translated into type of cable fault and/or interference.
This amplitude value refers to peak location stored in bits [15:8] in register CDLRR4 (0x183)
RESERVED: Writes ignored, read as 0.
Amplitude of the Second peak discovered by the TDR mechanism on Receive Channel
(TPRD). The value of these bits is translated into type of cable fault and/or interference.
This amplitude value refers to peak location stored in bits [7:0] in register CDLRR4 (0x183)
8.5.12 Cable Diagnostic Amplitude Results Register 5 (CDARR5)
This register provides the peaks amplitude measurement after the execution of the TDR. The values of
this register are valid after reading 1 in Diagnostic Done bit 1 in register CDCR (0x1E).
Table 8-46. Cable Diagnostic Amplitude Results Register 5 (CDARR5), address 0x0189
BIT NAME
15 RESERVED
14:8 TPRD Peak
Amplitude 5
7 RESERVED
6:0 TPRD Peak
Amplitude 4
DEFAULT
0,RO
<000
0000>,RO
0,RO
<000
0000>,RO
FUNCTION
RESERVED: Writes ignored, read as 0.
Amplitude of the Fifth peak discovered by the TDR mechanism on Receive Channel (TPRD).
The value of these bits is translated into type of cable fault and/or interference.
This amplitude value refers to peak location stored in bits [15:8] in register CDLRR4 (0x184)
RESERVED: Writes ignored, read as 0.
Amplitude of the Fourth peak discovered by the TDR mechanism on Receive Channel
(TPRD). The value of these bits is translated into type of cable fault and/or interference.
This amplitude value refers to peak location stored in bits [7:0] in register CDLRR4 (0x184)
8.5.13 Cable Diagnostic General Results Register (CDGRR)
This register provides general measurement results after the execution of the TDR. The Cable Diagnostic
software should post process this result together with other Peaks’ location and amplitude results.
Table 8-47. Cable Diagnostic General Results Register (CDGRR), address 0x018A
BIT NAME
15 TPTD Peak
Polarity 5
14 TPTD Peak
Polarity 4
13 TPTD Peak
Polarity 3
12 TPTD Peak
Polarity 2
11 TPTD Peak
Polarity 1
10 TPRD Peak
Polarity 5
9 TPRD Peak
Polarity 4
8 TPRD Peak
Polarity 3
DEFAUL FUNCTION
T
0,RO
Polarity of the Fifth peak discovered by the TDR mechanism on Transmit Channel (TPTD).
0,RO
Polarity of the Fourth peak discovered by the TDR mechanism on Transmit Channel (TPTD).
0,RO
Polarity of the Third peak discovered by the TDR mechanism on Transmit Channel (TPTD).
0,RO
Polarity of the Second peak discovered by the TDR mechanism on Transmit Channel (TPTD).
0,RO
Polarity of the First peak discovered by the TDR mechanism on Transmit Channel (TPTD).
0,RO
Polarity of the Fifth peak discovered by the TDR mechanism on Receive Channel (TPRD).
0,RO
Polarity of the Fourth peak discovered by the TDR mechanism on Receive Channel (TPRD).
0,RO
Polarity of the Third peak discovered by the TDR mechanism on Receive Channel (TPRD).
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