Datasheet

TLK110

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SLLS901D –DECEMBER 2011–REVISED JANUARY 2014

Table 8-37. Cable Diagnostic Specific Control Register (CDSCR), address 0x0170 (continued)

BIT BIT NAME DEFAULT DESCRIPTION

7:0 RESERVED 0, RO RESERVED: Writes ignored, read as 0.

Table 8-38. Cable Diagnostic Specific Control Register 2 (CDSCR2), address 0x0171

BIT BIT NAME DEFAULT DESCRIPTION

15:4 RESERVED 1100 1000 RESERVED: Ignore on read

0101, RW

3:0 TDR pulse control 1100, RW Configure expected self reflection in TDR

Table 8-39. Cable Diagnostic Specific Control Register 3 (CDSCR3), address 0x0173

BIT BIT NAME DEFAULT DESCRIPTION

15:8 Cable length cfg 1111 1111, Configure duration of listening to detect long cable reflections

7:0 RESERVED 1111 1111, RESERVED: Ignore on read

Table 8-40. Cable Diagnostic Specific Control Register 4 (CDSCR4), address 0x0177

BIT BIT NAME DEFAULT DESCRIPTION

15:13 RESERVED 000, RW RESERVED: Ignore on read

12:8 Short cables TH 1 1000, RW TH to compensate for strong reflections in short cables

7:0 RESERVED 1001 0110, RESERVED: Ignore on read

8.7.3 Cable Diagnostic Location Results Register 1 (CDLRR1)

This register provides the peaks locations after execution of the TDR. The values of this register are valid

after reading 1 in Diagnostic Done bit 1 in register CDCR (0x1E).

Table 8-41. Cable Diagnostic Location Results Register 1 (CDLRR1), address 0x0180

BIT NAME DEFAULT FUNCTION

15:8 TPTD Peak 0000 0000, RO Location of the Second peak discovered by the TDR mechanism on Transmit Channel

Location 2 (TPTD). The value of these bits is translated into distance from the PHY

7:0 TPTD Peak 0000 0000, RO Location of the First peak discovered by the TDR mechanism on Transmit Channel

Location 1 (TPTD). The value of these bits is translated into distance from the PHY

8.7.4 Cable Diagnostic Location Results Register 2 (CDLRR2)

This register provides the peaks locations after execution of the TDR. The values of this register are valid

after reading 1 in Diagnostic Done bit 1 in register CDCR (0x1E).

Table 8-42. Cable Diagnostic Location Results Register 2 (CDLRR2), address 0x0181

BIT NAME DEFAULT FUNCTION

15:8 TPTD Peak 0000 0000, RO Location of the Fourth peak discovered by the TDR mechanism on Transmit Channel

Location 4 (TPTD). The value of these bits is translated into distance from the PHY.

7:0 TPTD Peak 0000 0000, RO Location of the Third peak discovered by the TDR mechanism on Transmit Channel

Location 3 (TPTD). The value of these bits is translated into distance from the PHY.

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