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DM9161BIEP Fiches technique(PDF) 1 Page - Davicom Semiconductor, Inc. |
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DM9161BIEP Fiches technique(HTML) 1 Page - Davicom Semiconductor, Inc. |
1 / 2 page DM9161BIEP Product Brief 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver November 2008 Rev.1.0 The DM9161BI is a physical layer, single-chip, and low power transceiver for 100BASE-TX and 10BASE-T operations. Supports Industrial-grade: -40℃.~ +85℃,On the media side, it provides a direct interface either to Unshielded Twisted Pair Category 5 Cable (UTP5) for 100BASE-TX Fast Ethernet, or UTP5/UTP3 Cable for 10BASE-T Ethernet. Through the Media Independent Interface (MII), the DM9161BI connects to the Medium Access Control (MAC) layer, ensuring a high inter operability from different vendors. TheDM9161BI uses a low power and high performance advanced CMOS process. It contains the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u, including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD), 10BASE-TX Encoder/Decoder (ENC/DEC), and Twisted Pair Media Access Unit (TPMAU). The DM9161BI provides a strong support for the auto-negotiation function, utilizing automatic media speed and protocol selection. Furthermore, due to the built-in wave shaping filter, the DM9161BI needs no external filter to transport signals to the media in 100BASE-TXBASE-TX or 10BASE-TBASE-T Ethernet operation. Block Diagram MII Signals MII Interface/ Control 4B/5B Encoder 4B/5B Decoder Register Code- group Alignment Descrambler Serial to Parallel NRZI to NRZ RX CRM MLT-3 to NRZI Adaptive EQ Digital Logic Scrambler Parallel to Serial NRZ to NRZI NRZI to MLT-3 MLT-3 Driver Rise/Fall Time CTL TX CGM LED Driver Collision Detection Carrier Sense Auto- Negotiation 10BASE-T Module RX TX 125M CLK 25M CLK LED1-4# 25M OSCI RXI+/- RXI+/- 10TXD+/- 100TXD+/- AutoMDIX |
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