TLK105 Datasheet, PDF (71/99 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer Transceiver

TLK105
TLK106
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SLLSEB8A – AUGUST 2012 – REVISED MARCH 2013
8.20.8 Cable Diagnostic Amplitude Results Register 1 (CDARR1)
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 1 (CDARR1), address 0x0185
BIT NAME
15 RESERVED
14:8 TPTD Peak
Amplitude 2
7 RESERVED
6:0 TPTD Peak
Amplitude 1
DEFAULT
0,RO
<000 0000>,RO
0,RO
<000 0000>,RO
FUNCTION
RESERVED: Writes ignored, read as 0.
Amplitude of the Second peak discovered by the TDR mechanism on Transmit Channel
(TPTD). 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 CDLRR1 (0x180)
RESERVED: Writes ignored, read as 0.
Amplitude of the First peak discovered by the TDR mechanism on Transmit Channel (TPTD).
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 CDLRR1 (0x180)
8.20.9 Cable Diagnostic Amplitude Results Register 2 (CDARR2)
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 2 (CDARR2), address 0x0186
BIT NAME
15 RESERVED
14:8 TPTD Peak
Amplitude 4
7 RESERVED
6:0 TPTD Peak
Amplitude 3
DEFAULT
0,RO
<000 0000>,RO
0,RO
<000 0000>,RO
FUNCTION
RESERVED: Writes ignored, read as 0.
Amplitude of the Fourth peak discovered by the TDR mechanism on Transmit Channel
(TPTD). 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 CDLRR2 (0x181)
RESERVED: Writes ignored, read as 0.
Amplitude of the Third peak discovered by the TDR mechanism on Transmit Channel
(TPTD). 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 CDLRR2 (0x181)
8.20.10 Cable Diagnostic Amplitude Results Register 3 (CDARR3)
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 8-47. Cable Diagnostic Amplitude Results Register 3 (CDARR3), address 0x0187
BIT NAME
15 RESERVED
14:8 TPRD Peak
Amplitude 1
7 RESERVED
6:0 TPTD Peak
Amplitude 5
DEFAULT
0,RO
<000 0000>,RO
0,RO
<000 0000>,RO
FUNCTION
RESERVED: Writes ignored, read as 0.
Amplitude of the First 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 CDLRR3 (0x182)
RESERVED: Writes ignored, read as 0.
Amplitude of the Fifth peak discovered by the TDR mechanism on Transmit Channel (TPTD).
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 CDLRR3 (0x182)
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