PDF KSZ8041MLL Data sheet ( Hoja de datos )

Número de pieza	KSZ8041MLL
Descripción	10Base-T/100Base-TX/100Base-FX Physical Layer Transceiver
Fabricantes	Micrel Semiconductor
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No Preview Available ! KSZ8041TL/FTL/MLL 10Base-T/100Base-TX/100Base-FX Physical Layer Transceiver Data Sheet Rev. 1.2 General Description The KSZ8041TL is a single supply 10Base-T/100Base-TX Physical Layer Transceiver, which provides MII/RMII/SMII interfaces to transmit and receive data. It utilizes a unique mixed-signal design to extend signaling distance while reducing power consumption. HP Auto MDI/MDI-X provides the most robust solution for eliminating the need to differentiate between crossover and straight-through cables. Micrel LinkMD® TDR-based cable diagnostics permit identification of faulty copper cabling. The KSZ8041TL represents a new level of features and performance and is an ideal choice of physical layer transceiver for 10Base-T/100Base-TX applications. The KSZ8041FTL has all the identical rich features of the KSZ8041TL plus 100Base-FX support for fiber and media converter applications. The KSZ8041MLL is the basic 10Base-T/100Base-TX Physical Layer Transceiver version with MII support. The KSZ8041TL and KSZ8041FTL are available in 48-pin, lead-free TQFP packages. The KSZ8041MLL is provided in the 48-pin, lead-free LQFP package (See Ordering Information). Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Functional Diagram KSZ8041TL/FTL KSZ8041MLL LinkMD is a registered trademark of Micrel, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com December 2009 M9999-120909-1.2 1 page Micrel, Inc. KSZ8041TL/FTL/MLL SMII Signal Definition (KSZ8041TL/FTL only).................................................................................................................. 29 Clock Reference (CLOCK) ......................................................................................................................................... 29 Sync Pulse (SYNC) ..................................................................................................................................................... 29 Transmit Data and Control (TX) ................................................................................................................................ 29 Receive Data and Control (RX).................................................................................................................................. 30 Collision Detection ..................................................................................................................................................... 31 HP Auto MDI/MDI-X.......................................................................................................................................................... 32 Straight Cable ............................................................................................................................................................. 32 Crossover Cable ......................................................................................................................................................... 33 LinkMD® Cable Diagnostics.............................................................................................................................................. 34 Access ......................................................................................................................................................................... 34 Usage ........................................................................................................................................................................... 34 Power Management.......................................................................................................................................................... 34 Power Saving Mode.................................................................................................................................................... 34 Power Down Mode...................................................................................................................................................... 34 Reference Clock Connection Options .............................................................................................................................. 35 Reference Circuit for Power and Ground Connections .................................................................................................... 36 100Base-FX Fiber Operation (KSZ8041FTL only) ........................................................................................................... 37 Fiber Signal Detect ..................................................................................................................................................... 37 Far-End Fault............................................................................................................................................................... 37 Back-to-Back Media Converter......................................................................................................................................... 38 MII Back-to-Back Mode .............................................................................................................................................. 38 RMII Back-to-Back Mode (KSZ8041TL/FTL only) .................................................................................................... 39 Register Map........................................................................................................................................................................ 40 Register Description ........................................................................................................................................................... 40 Absolute Maximum Ratings(1) ............................................................................................................................................ 48 Operating Ratings(2) ............................................................................................................................................................ 48 Electrical Characteristics(3) ................................................................................................................................................ 48 Timing Diagrams ................................................................................................................................................................. 50 MII SQE Timing (10Base-T) ............................................................................................................................................. 50 MII Transmit Timing (10Base-T) ....................................................................................................................................... 51 MII Receive Timing (10Base-T) ........................................................................................................................................ 52 MII Transmit Timing (100Base-TX) .................................................................................................................................. 53 MII Receive Timing (100Base-TX) ................................................................................................................................... 54 RMII Timing....................................................................................................................................................................... 55 SMII Timing....................................................................................................................................................................... 56 Auto-Negotiation Timing ................................................................................................................................................... 57 MDC/MDIO Timing ........................................................................................................................................................... 58 Reset Timing..................................................................................................................................................................... 59 Reset Circuit ........................................................................................................................................................................ 60 Selection of Isolation Transformer.................................................................................................................................... 62 Selection of Reference Crystal .......................................................................................................................................... 62 Package Information........................................................................................................................................................... 63 48-Pin LQFP ..................................................................................................................................................................... 63 48-Pin TQFP..................................................................................................................................................................... 64 December 2009 5 M9999-120909-1.2 5 Page Micrel, Inc. KSZ8041TL/FTL/MLL Pin Number 23 Pin Name RXD0 / RXD[0] / RX DUPLEX 24 GND 25 VDDIO_3.3 26 VDDIO_3.3 27 RXDV / CRSDV / CONFIG2 28 RXC 29 RXER / RX_ER / ISO 30 GND 31 VDD_1.8 32 INTRP 33 TXC 34 TXEN / TX_EN 35 TXD0 / TXD[0] / TX 36 TXD1 / TXD[1] / SYNC 37 GND 38 TXD2 39 TXD3 40 COL / CONFIG0 41 CRS / CONFIG1 Type(1) Ipu/O Gnd P P Ipd/O O Ipd/O Gnd P Opu I/O I I I Gnd I I Ipd/O Ipd/O Pin Function MII Mode: RMII Mode: SMII Mode: Receive Data Output[0](2) / Receive Data Output[0](3) / Receive Data and Control(4) / Config. Mode: Latched as DUPLEX (register 0h, bit 8) during power-up / reset. See “Strapping Options” section for details. Ground 3.3V digital VDD 3.3V digital VDD MII Mode: Receive Data Valid Output / RMII Mode: Carrier Sense/Receive Data Valid Output / Config. Mode: The pull-up/pull-down value is latched as CONFIG2 during power-up / reset. See “Strapping Options” section for details. MII Mode: Receive Clock Output. MII Mode: Receive Error Output / RMII Mode: Receive Error Output / Config. Mode: The pull-up/pull-down value is latched as ISOLATE during power-up / reset. See “Strapping Options” section for details. Ground 1.8V digital VDD Interrupt Output: Programmable Interrupt Output Register 1Bh is the Interrupt Control/Status Register for programming the interrupt conditions and reading the interrupt status. Register 1Fh bit 9 sets the interrupt output to active low (default) or active high. MII Mode: Transmit Clock Output MII Back-to Back Mode: Transmit Clock Input MII Mode: Transmit Enable Input / RMII Mode: MII Mode: RMII Mode: SMII Mode: MII Mode: RMII Mode: Transmit Enable Input Transmit Data Input[0](5) / Transmit Data Input[0](6) / Transmit Data and Control(7) Transmit Data Input[1](5) / Transmit Data Input[1](6) / SMII Mode: SYNC Clock Input Ground MII Mode: MII Mode: Transmit Data Input[2](5) / Transmit Data Input[3](5) / MII Mode: Collision Detect Output / Config. Mode: The pull-up/pull-down value is latched as CONFIG0 during power-up / reset. See “Strapping Options” section for details. MII Mode: Carrier Sense Output / Config. Mode: The pull-up/pull-down value is latched as CONFIG1 during power-up / reset. See “Strapping Options” section for details. December 2009 11 M9999-120909-1.2 11 Page

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