DM9161CIEP datasheet(9/47 Pages) DAVICOM

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DM9161CI

10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver

Final

Version: DM9161CIIII-DS-F01

February 22, 2012

5.2 Media Interface

Pin No.

Pin Name

I/O

Description

3,4

RX+

RX-

I/O Differential Receive Pair

Differential data is received from the media

7,8

TX+

TX-

I/O Differential Transmit Pair/PECL Transmit Pair

Differential data is transmitted to the media in TP mode

PECL data is transmitted to the media in Fiber mode

5.3 LED Interface

Pin No.

Pin Name

I/O

Description

LED0

/OP0

(U)

LED Driver output 0

OP0: (power up reset latch input)

This pin is used to control the forced or advertised operating mode of the

DM9161CI according to the Table A. The value is latched into the

DM9161CI registers at power-up/reset

LED1

/OP1

(U)

LED Driver output 1

OP1: (power up reset latch input)

This pin is used to control the forced or advertised operating mode of

the DM9161CI according to the Table A. The value is latched into the

DM9161CI registers at power-up/reset

LED2

/OP2

(U)

LED Driver output 2

OP2: (power up reset latch input)

This pin is used to control the forced or advertised operating mode of the

DM9161CI according to the Table A. The value is latched into the

DM9161CI registers at power-up/reset

5.4 Mode

Pin No.

Pin Name

I/O

Description

PWRDWN

Power Down Control

Asserted high to force the DM9161CI into power down mode. When in

power down mode, most of the DM9161CI circuit block’s power is

turned off, only the MII management interface (MDC, MDIO) logic is

available (the PHY should respond to management transactions and

should not generate spurious signals on the MII)). To leave power down

mode, the DM9161CI needs the hardware or software reset with the

PWRDWN pin low

CABLESTS

/LINKSTS

(D)

Cable Status or Link Status

This pin is used to indicate the status of the cable connection when

power up reset latch low (Default)

0 = Without cable connection

1 = With cable connection

This pin is used to indicate the status of the Link connection when

power up reset latch high

0 = With link

1 = Without link

DISMDIX

(D)

HP Auto-MDIX Control

1: Disable auto mode

0: Enable HP Auto-MDIX mode

Not connect

DM9161CIEP Datasheet(PDF) 9 Page - Davicom Semiconductor, Inc.

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