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

Número de pieza

componentes Descripción

Lista de partido

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

1. General Description

DAVICOM’s DM9161CI is a industrial-temperature

physical layer, low power, and single-chip 10BASE-

T/100BASE-TX transceiver specifically designed for

consumer electronics, industrial, and enterprise applications.

Through using a CMOS process, the DM9161CI has

the advantage of ensuring both high performance

and savings in power consumption.

Through utilization of automatic media speed and

protocol selection, the auto-negotiation function is

strongly supported in the DM9161CI. Then due to the

built-in wave shaping filter, the DM9161CI has a

significant convenience of not requiring an external

filter to transport signals to the media in 10BASE-T or

100BASE-TX during Ethernet operation.

2. Features

„ Fully complies with IEEE 802.3 / IEEE 802.3u 10Base-

T/ 100Base-TX, ANSI X3T12 TP-PMD 1995

standards

„ Support HP MDI/MDI-X auto crossover function

(HP Auto-MDIX)

„ Support Auto-Negotiation function, compliant with

IEEE 802.3u

„ Fully integrated Physical layer transceiver On-chip

filtering with direct interface to magnetic transformer

„ Selectable repeater or node mode

„ Selectable MII or RMII (Reduced MII) mode for

100Base-TX and 10Base-TX. Selectable MII or

GPSI (7-Wired) mode for 10Base-T

„ Selectable full-duplex or half-duplex

operation

„

„ MII management interface with mask-able interrupt

output capability

„ Provide Loopback mode for

easy system diagnostics

Through its Media Independent Interface (MII), the

DM9161CI not only connects the Medium Access

Control (MAC) layer but also ensure a high inter-

operability and flexibility for our different vendors. In

media usage applications, the DM9161CI provides a

direct interface either to an Unshielded Twisted Pair

Category 5 Cable (UTP5) for 100BASE-TX Fast

Ethernet, or an UTP5/UTP3 Cable for 10BASE-T

Ethernet. The DM9161CI contains the entire physical

layer functions of 100BASE-TX. Those physical layer

functions are defined by IEEE802.3u include the

Physical Coding Sub layer (PCS), Physical Medium

Attachment (PMA), Twisted Pair Physical Medium

Dependent Sub layer (TP-PMD), 10BASE-TX

Encoder/Decoder (ENC/DEC), and Twisted Pair

Media Access Unit (TPMAU).

„ LED status outputs indicate Link/ Activity, Speed10/100

and Full-duplex/Collision. Support Dual-

LED optional control

„ Single low power Supply of 3.3V with an advanced

CMOS technology, Built in 3.3V to 1.8V

regulator

„ Lower Power consumption modes:

„ Power Reduced mode (cable detection)

„ Power Down mode

„ Supports industrial-temperature (-40℃ ~ +85℃)

„ Selectable TX drivers for 1:1 or 1.25:1 transformers for

additional power reduction . 1.25: 1 transformers only

when HP Auto-MDIX Disable.

„ Compatible with 3.3V and 5.0V tolerant I/Os

DM9161CIE pin to pin Compatible with DM9161AE /

DM9161BE

„ DSP architecture PHY Transceiver.

„ 48-pin LQFP - 0.18um process

4

Final

Version: DM9161CI-DS-F01

February 22, 2012

Share Link: