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DM9161B Datasheet(PDF) 2 Page - Davicom Semiconductor, Inc. |
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DM9161B Datasheet(HTML) 2 Page - Davicom Semiconductor, Inc. |
2 / 45 page DM9161B 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver Final 2 Version: DM9161B-12-DS-F01 October 16, 2009 Table of Contents 1. General Description...................................................................3 2. Features ....................................................................................3 3. Block Diagram ...........................................................................4 4. Pin Configuration: ......................................................................5 5. Pin Description ..........................................................................6 5.1 Normal MII Interface, 21 pins ..................................................6 5.2 Media Interface, 4 pins ............................................................8 5.3 LED Interface, 3 pins ...............................................................8 5.4 Mode, 2 pins ............................................................................8 5.5 Bias and Clock, 4 pins .............................................................9 5.6 Power, 13 pins.........................................................................9 5.7 Table of Media Type Selection ................................................9 5.8 Pin Maps of Normal MII, Reduced MII, and 10Base-T GPSI (7-Wired) Mode .................................................................. 10 6. LED Configuration ...................................................................11 6.1 LED Functional Description…………………………………....12 7. Functional Description .............................................................13 7.1 MII interface...........................................................................13 7.2 100Base-TX Operation..........................................................15 7.2.1 100Base-TX Transmit.........................................................15 7.2.1.1 4B5B Encoder .................................................................16 7.2.1.2 Scrambler ...................................................................... .16 7.2.1.3 Parallel to Serial Converter..............................................16 7.2.1.4 NRZ to NRZI Encoder .....................................................16 7.2.1.5 MLT-3 Converter .............................................................16 7.2.1.6 MLT-3 Driver....................................................................16 7.2.1.7 4B5B Code Group ...........................................................17 7.2.2 100Base-TX Receiver ........................................................18 7.2.2.1 Signal Detect ...................................................................18 7.2.2.2 Adaptive Equalizer...........................................................18 7.2.2.3 MLT-3 to NRZI Decoder ..................................................18 7.2.2.4 Clock Recovery Module...................................................18 7.2.2.5 NRZI to NRZ....................................................................18 7.2.2.6 Serial to Parallel ..............................................................18 7.2.2.7 Descrambler ....................................................................18 7.2.2.8 Code Group Alignment ....................................................18 7.2.2.9 4B5B Decoder .................................................................18 7.2.3 10Base-T Operation ...........................................................18 7.2.4 Collision Detection..............................................................19 7.2.5 Carrier Sense .....................................................................19 7.2.6 Auto-Negotiation.................................................................19 7.2.7 MII Serial Management ......................................................20 7.2.8 Serial Management Interface .............................................20 7.2.9 Management Interface – Read Frame Structure ..............................................................................20 7.2.10 Management Interface – Write Frame Structure ..............20 7.2.11 Power Reduced Mode ......................................................21 7.2.12 Power Down Mode ...........................................................21 7.2.13 Reduced Transmit Power Mode .......................................21 7.2.14 Feedback Vout and Vin for 5V………………………….….21 7.3 HP Auto-MDIX Functional Description..........................................22 8. MII Register Description ..........................................................23 8.1 Basic Mode Control Register (BMCR) - 00............................24 8.2 Basic Mode Status Register (BMSR) - 01 .............................25 8.3 PHY ID Identifier Register #1 (PHYIDR1) - 02 ......................26 8.4 PHY ID Identifier Register #2 (PHYIDR2) - 03 ......................26 8.5 Auto-negotiation Advertisement Register (ANAR) - 04 ......................................................................................27 8.6 Auto-negotiation Link Partner Ability Register (ANLPAR) - 0528 8.7 Auto-negotiation Expansion Register (ANER) - 06 ......................................................................................29 8.8 DAVICOM Specified Configuration Register (DSCR) –16.....29 8.9 DAVICOM Specified Configuration and Status Register (DSCSR) - 17 ......................................................................31 8.10 10Base-T Configuration / Status (10BTCSR) - 18...............32 8.11 DAVICOM Specified Interrupt Register - 21 ........................32 8.12 DAVICOM Specified Receive Error Counter Register (RECR) - 22.........................................................................................33 8.13 DAVICOM Specified Disconnect Counter Register (DISCR) - 23.........................................................................................33 8.14 DAVICOM Hardware Reset Latch State Register (RLSR) - 24 ............................................................34 8.17 Power Saving Control Register (PSCR) – 29 ......................34 9. DC and AC Electrical Characteristics 9.1 Absolute Maximum Ratings (25 °C).........................................35 9.2 Operating Conditions.............................................................35 9.3 DC Electrical Characteristics .................................................36 9.4 AC Electrical Characteristics & Timing Waveform .............................................................................. 36 9.4.1 TP Interface ........................................................................36 9.4.2 Oscillator/Crystal Timing.....................................................36 9.4.3 Power On Reset Timing......................................................37 9.4.4 MDC/MDIO Timing .............................................................37 9.4.5 MDIO Timing when OUTPUT by STA ................................37 9.4.6 MDIO Timing when OUTPUT by DM9161B .......................37 9.4.7 100Base-TX Transmit Timing Parameters .........................38 9.4.8 100Base-TX Transmit Timing Diagram ..............................38 9.4.9 100Base-TX Receive Timing Parameters ..........................38 9.4.10 MII 100Base-TX Receive Timing Diagram .......................39 9.4.11 MII 10Base-T Nibble Transmit Timing Parameters ..........39 9.4.12 MII 10Base-T Nibble Transmit Timing Diagram..........................................................................39 9.4.13 MII 10Base-T Receive Nibble Timing Parameters .......... 40 9.4.14 MII 10Base-T Receive Nibble Timing Diagram..........................................................................40 9.4.15 Auto-negotiation and Fast Link Pulse Timing Parameters40 9.4.16 Auto-negotiation and Fast Link Pulse Timing Diagram ....41 9.4.17 RMII Receive Timing Diagram..........................................41 9.4.18 RMII Transmit Timing Diagram.........................................41 9.4.19 RMII Timing Diagram........................................................42 9.4.20 RMII Timing Parameter ....................................................42 9.4.21 Magnetics Selection Guide…………………………………43 10. Package Information..............................................................44 11. Order Information...................................................................45 |
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