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DM9161C Datasheet(PDF) 1 Page - Davicom Semiconductor, Inc. |
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DM9161C Datasheet(HTML) 1 Page - Davicom Semiconductor, Inc. |
1 / 2 page DM9161C 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver Preliminary 1 Version: 1.1 2012/2/21 1. 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 ● Lower Power consumption modes: o Power Reduced mode (cable detection) o Power Down mode o 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 ● Pin to pin Compatible with DM9161A/B ● DSP architecture PHY Transceiver. ● 48-pin LQFP- 0.18um process 2. General Description DAVICOM’s DM9161C is a 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 DM9161C 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 DM9161C. Then due to the built-in wave shaping filter, the DM9161C 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 DM9161C not only connects the Medium Access Control (MAC) layer, but the MII also ensure a high inter-operability and flexibility with different vendors. In media usage applications, the DM9161C 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 DM9161C 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). |
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