KSZ9031MNX Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

KSZ9031MNX

Gigabit Ethernet Transceiver with GMII/MII Support

Micrel 

Micrel, Inc.

Pin Number

12

13

14

Pin Name

AVDDL

AVDDL

TXRXP_D

15

TXRXM_D

16

AVDDH

17

LED2/

PHYAD1

18

DVDDH

KSZ9031MNX

Type(1)

P

P

I/O

I/O

P

I/O

Pin Function

1.2V analog VDD

1.2V analog VDD

Media Dependent Interface[3], positive signal of differential pair

1000Base-T mode:

TXRXP_D corresponds to BI_DD+ for MDI configuration and BI_DC+ for

MDI-X configuration, respectively.

10Base-T/100Base-TX mode:

TXRXP_D is not used.

Media Dependent Interface[3], negative signal of differential pair

1000Base-T mode:

TXRXM_D corresponds to BI_DD– for MDI configuration and BI_DC– for

MDI-X configuration, respectively.

10Base-T/100Base-TX mode:

TXRXM_D is not used.

3.3V/2.5V (commercial temp only) analog VDD

LED2 output: Programmable LED2 output

Config mode:

The voltage on this pin is sampled and latched during the

power-up/reset process to determine the value of PHYAD[1].

See the “Strapping Options” section for details.

The LED2 pin is programmed by the LED_MODE strapping option (pin 55), and is

defined as follows:

Single-LED Mode

Link

Pin State LED Definition

Link off

H

OFF

Link on (any speed) L

ON

Tri-Color Dual-LED Mode

Link/Activity

Link off

1000 Link / No activity

1000 Link / Activity (RX, TX)

100 Link / No activity

100 Link / Activity (RX, TX)

10 Link / No activity

10 Link / Activity (RX, TX)

Pin State

LED2 LED1

H

H

L

H

Toggle H

H

L

H

Toggle

L

L

Toggle Toggle

LED Definition

LED2 LED1

OFF

OFF

ON

OFF

Blinking OFF

OFF

ON

OFF

Blinking

ON

ON

Blinking Blinking

For tri-color dual-LED mode, LED2 works in conjunction with LED1 (pin 19) to

indicate 10Mbps link and activity.

P

3.3V, 2.5V, or 1.8V digital VDD_IO

October 2012

11

M9999-103112-1.0

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