IP1001-DS-R02 datasheet(12/48 Pages) ETC2

12 / 48 page

IP1001 LF

Data Sheet

12/48

Dec. 18, 2007

IP1001-DS-R06

Pin description (continued)

Pin no.

Label

Type

Description

Serial Management Interface

MDC

Management Data Clock.

MDC is the management data clock reference. A continuous

clock is not expected. The maximum frequency supported is

12.5 MHz.

MDIO

I/O

Management Data Input Output.

MDIO transfers management data in and out of the device

synchronous to MDC. This pin should be connected to VDDO

through a 5.1-k

Ω pull up resistor.

Pin no.

Label

Type

Description

Medium Interface

29,26,21,18,

30,27,22,19

MDI[3:0]P,

MDI[3:0]M

I/O

Twisted- Pair Media Dependent Interface

In 1000BASE-T mode, all 4 pairs are both input and output at

the same time. In 100BASE-TX and 10BASE-T mode,

MDI[0]P/M are used for transmit pair under MDI configuration,

and is used for receive pair under MDIX configuration.

MDI[1]P/M are used for receive pair under MDI configuration,

and is used for transmit pair under MDIX configuration.

MDI[2]P/M and MDI[3]P/M are unused in 100BASE-TX and

10BASE-T mode.

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