DP83867CS datasheet(38/114 Pages) TI1

38 / 114 page

DP83867CS, DP83867IS, DP83867E

SNLS504 – OCTOBER 2015

www.ti.com

Table 7. 4-Level Strap Pins (continued)

PIN NAME

48 QFN PIN #

DEFAULT

STRAP FUNCTION

RGMII Clock Skew

LED_1

[00]

MODE

SPEED_SEL

TX[2]

LED_0

[00]

MODE

Mirror Enable

SGMII Enable

NOTE

Note: RX_D1 is not a strap input, but this pin must be populated with the same strap

resistors chosen for RX_D0. RX_D0 and RX_D1 form an SGMII differential pair. The

dummy straps on RX_D1 are required to provide a balanced load for this SGMII

differential pair.

NOTE

Note: RX_D3 is not a strap input, but this pin must be populated with the same strap

resistors chosen for RX_D2. RX_D2 and RX_D3 form an SGMII differential pair. The

dummy straps on RX_D3 are required to provide a balanced load for this SGMII

differential pair.

Table 8. Speed Select Strap Details

MODE

SPEED_SEL

REMARKS

10/100/1000

advertise ability of 10/100/1000

100/1000

advertise ability of 100/1000 only

Table 9. RGMII Transmit Clock Skew Details

RGMII CLOCK SKEW

MODE

RGMII TX CLOCK SKEW

TX[2]

TX[1]

TX[0]

2.0 ns

1.5 ns

1.0 ns

0.5 ns

4.0 ns

3.5 ns

3.0 ns

2.5 ns

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DP83867CS Datasheet(PDF) 38 Page - Texas Instruments

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