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DM9161CIEP Fiches technique(PDF) 4 Page - Davicom Semiconductor, Inc. |
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DM9161CIEP Fiches technique(HTML) 4 Page - Davicom Semiconductor, Inc. |
4 / 47 page DM9161CI 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver 4 Final Version: DM9161CI-DS-F01 February 22, 2012 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. 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). 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 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 |
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