88E1116R-NNC1 View Datasheet(PDF) - Marvell Semiconductor

Part Name

Description

Manufacturer

88E1116R-NNC1

Gigabit Ethernet Transceiver

Marvell Semiconductor 

Signal Description

Pin Description

Table 1: Media Dependent Interface

64-QFN

Pin #

30

31

Pin Name

MDIN[0]

MDIP[0]

Pin

Ty p e

I/O, D

Description

Media Dependent Interface[0].

In 1000BASE-T mode in MDI configuration, MDIN/P[0] correspond to

BI_DA±. In MDIX configuration, MDIN/P[0] correspond to BI_DB±.

In 100BASE-TX and 10BASE-T modes in MDI configuration, MDIN/P[0] are

used for the transmit pair. In MDIX configuration, MDIN/P[0] are used for the

receive pair.

“The unused MDI pins cannot be connected to ground. They need to be left

floating, because they have internal bias.The 88E1116R device contains an

internal 100 ohm resistor between the MDIP/N[0] pins.

25

MDIN[1]

I/O, D Media Dependent Interface[1].

26

MDIP[1]

In 1000BASE-T mode in MDI configuration, MDIN/P[1] correspond to

BI_DB±. In MDIX configuration, MDIN/P[1] correspond to BI_DA±.

In 100BASE-TX and 10BASE-T modes in MDI configuration, MDIN/P[1] are

used for the receive pair. In MDIX configuration, MDIN/P[1] are used for the

transmit pair.

“The unused MDI pins cannot be connected to ground. They need to be left

floating, because they have internal bias.The 88E1116R device contains an

internal 100 ohm resistor between the MDIP/N[0] pins.

23

MDIN[2]

I/O, D Media Dependent Interface[2].

24

MDIP[2]

In 1000BASE-T mode in MDI configuration, MDIN/P[2] correspond to

BI_DC±. In MDIX configuration, MDIN/P[2] corresponds to BI_DD±.

In 100BASE-TX and 10BASE-T modes, MDIN/P[2] are not used.

“The unused MDI pins cannot be connected to ground. They need to be left

floating, because they have internal bias.The 88E1116R device contains an

internal 100 ohm resistor between the MDIP/N[0] pins.

19

MDIN[3]

I/O, D Media Dependent Interface[3].

20

MDIP[3]

In 1000BASE-T mode in MDI configuration, MDIN/P[3] correspond to

BI_DD±. In MDIX configuration, MDIN/P[3] correspond to BI_DC±.

In 100BASE-TX and 10BASE-T modes, MDIN/P[3] are not used.

“The unused MDI pins cannot be connected to ground. They need to be left

floating, because they have internal bias.The 88E1116R device contains an

internal 100 ohm resistor between the MDIP/N[0] pins.

Copyright © 2011 Marvell

May 9, 2011, Advance

Document Classification: Proprietary Information

Doc. No. MV-S105539-00, Rev. --

Page 7

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