KSZ9031RNX 查看數據表（PDF） - Micrel

零件编号

产品描述 (功能)

生产厂家

KSZ9031RNX

Gigabit Ethernet Transceiver with RGMII Support

Micrel 

Micrel, Inc.

KSZ9031RNX

Pin Description (Continued)

Pin Number Pin Name Type(2) Pin Function

Media Dependent Interface[2], negative signal of differential pair

1000Base-T mode:

8

TXRXM_C

I/O

TXRXM_C corresponds to BI_DC– for MDI configuration and BI_DD– for MDI-X

configuration, respectively.

10Base-T/100Base-TX mode:

TXRXM_C is not used.

9

AVDDL

P

1.2V analog VDD

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

1000Base-T mode:

10

TXRXP_D

I/O

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:

11

TXRXM_D

I/O

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.

12

AVDDH

P

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

13

NC

–

No connect. This pin is not bonded and can be connected to digital ground for footprint

compatibility with the Micrel KSZ9021RN Gigabit PHY.

14

DVDDL

P

1.2V digital VDD

LED output:

Programmable LED2 output

Config mode: The pull-up/pull-down value is latched as PHYAD[1] during

power-up/reset. See the Strapping Options section for details.

The LED2 pin is programmed by the LED_MODE strapping option (Pin 41), 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

LED2/

15

PHYAD1

I/O

Link/Activity

Pin State

LED2 LED1

LED Definition

LED2 LED1

Link off

H

H

OFF

OFF

1000 Link / No activity

L

H

ON

OFF

1000 Link / Activity (RX, TX) Toggle H

Blinking OFF

100 Link / No activity

H

L

OFF

ON

100 Link / Activity (RX, TX) H

Toggle OFF

Blinking

10 Link / No activity

L

L

ON

ON

10 Link / Activity (RX, TX) Toggle Toggle Blinking Blinking

For tri-color dual-LED mode, LED2 works in conjunction with LED1 (Pin 17) to indicate

10Mbps link and activity.

May 14, 2015

10

Revision 2.2

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