DM9161CI Ver la hoja de datos (PDF) - Davicom Semiconductor, Inc.

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DM9161CI

10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver

Davicom Semiconductor, Inc. 

DM9161CI

10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver

5.2 Media Interface

Pin No.

Pin Name

3,4

RX+

RX-

7,8

TX+

TX-

5.3 LED Interface

Pin No.

11

Pin Name

LED0

/OP0

12

LED1

/OP1

13

LED2

/OP2

5.4 Mode

Pin No.

10

Pin Name

PWRDWN

14

CABLESTS

/LINKSTS

39

DISMDIX

45

NC

I/O

Description

I/O Differential Receive Pair

Differential data is received from the media

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

I/O

Description

O, LED Driver output 0

LI OP0: (power up reset latch input)

(U) 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

O,

LI LED Driver output 1

(U) 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

O, LED Driver output 2

LI OP2: (power up reset latch input)

(U) 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

I/O

Description

I 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

O, Cable Status or Link Status

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

(D) 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

I HP Auto-MDIX Control

(D) 1: Disable auto mode

0: Enable HP Auto-MDIX mode

- Not connect

9

Final

Version: DM9161CIIII-DS-F01

February 22, 2012

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