DP83867CSRGZR.B datasheet(97/129 Pages) TI2

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7.6.106 TDR General Configuration Register 1 (TDR_GEN_CFG1)

Table 7-116. TDR General Configuration Register 1 (TDR_GEN_CFG1), Address 0x0180

BIT

BIT NAME

DEFAULT

DESCRIPTION

15:13

RESERVED

0, RO

RESERVED

TDR_CH_CD_BYPASS

0, RW

TDR Bypass for Channel C and D:

1 = Bypass channel C and D in TDR tests.

0 = Normal operation.

TDR_CROSS_MODE_DIS

0, RW

Disable TDR Cross Mode:

1 = Disable cross mode option. Do not check cross channels. Only

listen to the channel being used for transmit.

0 = Normal operation.

TDR_NLP_CHECK

1, RW

TDR NLP Check:

1 = Check for NLPs during silence.

0 = Normal operation.

9:7

TDR_AVG_NUM

110, RW

Number Of TDR Cycles to Average:

111: RESERVED: Writes ignored, read as 0.

110: 64 TDR cycles

101: 32 TDR cycles

100: 16 TDR cycles

011: 8 TDR cycles

010: 4 TDR cycles

001: 2 TDR cycles

000: 1 TDR cycle

6:4

TDR_SEG_NUM

101, RW

Set the number of TDR segments to check.

3:0

TDR_CYCLE_TIME

010, RW

Set the time for each TDR cycle. Value is measured in

microseconds.

7.6.107 TDR Peak Locations Register 1 (TDR_PEAKS_LOC_1)

Table 7-117. TDR Peak Locations Register 1 (TDR_PEAKS_LOC_1), Address 0x0190

BIT

BIT NAME

DEFAULT

DESCRIPTION

15:8

TDR_PEAKS_LOC_A_1

0, RO

Location of the second peak discovered by the TDR mechanism on

channel A. The value of these bits is translated into distance from the

PHY.

7:0

TDR_PEAKS_LOC_A_0

0, RO

Location of the first peak discovered by the TDR mechanism on

channel A. The value of these bits is translated into distance from the

PHY.

7.6.108 TDR Peak Locations Register 2 (TDR_PEAKS_LOC_2)

Table 7-118. TDR Peak Locations Register 2 (TDR_PEAKS_LOC_2), Address 0x0191

BIT

BIT NAME

DEFAULT

DESCRIPTION

15:8

TDR_PEAKS_LOC_A_3

0, RO

Location of the fourth peak discovered by the TDR mechanism on

channel A. The value of these bits is translated into distance from the

PHY.

7:0

TDR_PEAKS_LOC_A_2

0, RO

Location of the third peak discovered by the TDR mechanism on

channel A. The value of these bits is translated into distance from the

PHY.

7.6.109 TDR Peak Locations Register 3 (TDR_PEAKS_LOC_3)

Table 7-119. TDR Peak Locations Register 3 (TDR_PEAKS_LOC_3), Address 0x0192

BIT

BIT NAME

DEFAULT

DESCRIPTION

15:8

TDR_PEAKS_LOC_B_0

0, RO

Location of the first peak discovered by the TDR mechanism on

channel B. The value of these bits is translated into distance from the

PHY.

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DP83867CS, DP83867IS, DP83867E

SNLS504F – OCTOBER 2015 – REVISED JANUARY 2025

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