ksz8051mlli Micrel Semiconductor, ksz8051mlli Datasheet
ksz8051mlli
Available stocks
Related parts for ksz8051mlli
ksz8051mlli Summary of contents
Page 1
General Description The KSZ8051MLL is a single-supply 10Base-T/100Base- TX Ethernet physical layer transceiver for transmission and reception of data over standard CAT-5 unshielded twisted pair (UTP) cable. The KSZ8051MLL is a highly-integrated, compact solution. It reduces board cost and simplifies ...
Page 2
... IP Set-top Box • • LOM • Printer Ordering Information Part Number Temperature Range 0°C to +70°C KSZ8051MLL (1) −40°C to +85°C KSZ8051MLLI Note: 1. Contact factory for lead time. July 2010 Package Lead Finish 48-Pin LQFP Pb-Free 48-Pin LQFP Pb-Free ...
Page 3
Micrel, Inc. Revision History Revision Date Summary of Changes 1.0 6/22/10 Data sheet created. July 2010 3 KSZ8051MLL M9999-071210-1.0 ...
Page 4
Micrel, Inc. Contents General Description .............................................................................................................................................................. 1 Features ................................................................................................................................................................................. 1 Functional Diagram............................................................................................................................................................... 1 Applications........................................................................................................................................................................... 2 Ordering Information ............................................................................................................................................................ 2 Revision History.................................................................................................................................................................... 3 Contents................................................................................................................................................................................. 4 List of Figures........................................................................................................................................................................ 6 List of Tables ......................................................................................................................................................................... 7 Pin Configuration – KSZ8051MLL ....................................................................................................................................... 8 Pin ...
Page 5
Micrel, Inc. HP Auto MDI/MDI-X ............................................................................................................................................................. 21 Straight Cable ................................................................................................................................................................... 21 Crossover Cable ............................................................................................................................................................... 22 ® LinkMD Cable Diagnostics................................................................................................................................................ 22 NAND Tree Support ............................................................................................................................................................ 23 NAND Tree I/O Testing..................................................................................................................................................... 24 Power Management ............................................................................................................................................................ 25 Power Saving Mode.......................................................................................................................................................... 25 Energy Detect ...
Page 6
Micrel, Inc. List of Figures Figure 1. Auto-Negotiation Flow Chart........................................................................................................................... 16 Figure 2. KSZ8051MLL MII Interface............................................................................................................................. 18 Figure 3. KSZ8051MLL and KSZ8041FTL Back-to-Back Media Converter .................................................................. 19 Figure 4. Typical Straight Cable Connection ................................................................................................................. 21 Figure 5. Typical Crossover Cable ...
Page 7
Micrel, Inc. List of Tables Table 1. MII Signal Definition ......................................................................................................................................... 17 Table 2. MII Signal Connection for MII Back-to-Back Mode (100Base-TX Copper Repeater)...................................... 19 Table 3. MII Management Frame Format – for KSZ8051MLL....................................................................................... 20 Table 4. MDI/MDI-X Pin Definition ...
Page 8
Micrel, Inc. Pin Configuration – KSZ8051MLL July 2010 48-Pin (7mm x 7mm) LQFP 8 KSZ8051MLL M9999-071210-1.0 ...
Page 9
Micrel, Inc. Pin Description – KSZ8051MLL Pin Number Pin Name 1 GND Gnd 2 GND Gnd 3 GND Gnd 4 VDD_1 VDDA_3 RXM I/O 10 RXP I/O ...
Page 10
Micrel, Inc. Pin Description – KSZ8051MLL (Continued) Pin Number Pin Name Type RXDV / Ipd/O CONFIG2 28 RXC / Ipd/O B-CAST_OFF 29 RXER / Ipd/O ISO 30 GND Gnd 31 VDD_1 INTRP / Ipu/Opu ...
Page 11
Micrel, Inc. Pin Description – KSZ8051MLL (Continued) Pin Number Pin Name Type 42 LED0 / Ipu/O NWAYEN 43 LED1 / Ipu/O SPEED July 2010 (1) Pin Function LED Output: Programmable LED0 ...
Page 12
Micrel, Inc. Pin Description – KSZ8051MLL (Continued) Pin Number Pin Name Type 47 RST Notes Power supply. Gnd = Ground Input Output. I/O = Bi-directional. Ipu/O = Input with ...
Page 13
Micrel, Inc. Strapping Options – KSZ8051MLL Pin Number Pin Name 22 PHYAD2 Ipd/O 21 PHYAD1 Ipd/O 20 PHYAD0 Ipu/O CONFIG2 Ipd CONFIG1 Ipd/O 40 CONFIG0 Ipd/O 29 ISO Ipd/O 43 SPEED Ipu/O 23 DUPLEX Ipu/O 42 NWAYEN Ipu/O ...
Page 14
Micrel, Inc. Functional Description: 10Base-T/100Base-TX Transceiver The KSZ8051MLL is an integrated single 3.3V supply Fast Ethernet transceiver fully compliant with the IEEE 802.3 Specification, and reduces board cost and simplifies board layout by using on-chip termination resistors for ...
Page 15
Micrel, Inc. Scrambler/De-Scrambler (100Base-TX Only) The scrambler is used to spread the power spectrum of the transmitted signal to reduce EMI and baseline wander, and the de-scrambler is needed to recover the scrambled signal. SQE and Jabber Function (10Base-T Only) ...
Page 16
Micrel, Inc. MII Data Interface The Media Independent Interface (MII) is compliant with the IEEE 802.3 Specification. It provides a common interface between MII PHYs and MACs, and has the following key characteristics: • Pin count is 15 pins (6 ...
Page 17
Micrel, Inc. MII Signal Definition Table 1 describes the MII signals. Refer to Clause 22 of the IEEE 802.3 Specification for detailed information. MII Signal Name (with respect to PHY, KSZ8051MLL signal) TXC TXEN TXD[3:0] RXC RXDV RXD[3:0] RXER CRS ...
Page 18
Micrel, Inc. Receive Data[3:0] (RXD[3:0]) RXD[3:0] transitions synchronously with respect to RXC. For each clock period in which RXDV is asserted, RXD[3:0] transfers a nibble of recovered data from the PHY. Receive Error (RXER) RXER is asserted for one or ...
Page 19
Micrel, Inc. Back-to-Back Mode – 100Mbps Copper Repeater / Media Converter Two KSZ8051MLL devices can be connected back-to-back to form a 100Base-TX to 100Base-TX copper repeater. A KSZ8051MLL and a KSZ8041FTL can be connected back-to-back to provide a low-cost media ...
Page 20
Micrel, Inc. MII Management (MIIM) Interface The KSZ8051MLL supports the IEEE 802.3 MII Management Interface, also known as the Management Data Input / Output (MDIO) Interface. This interface enables upper-layer device, like a MAC processor, to monitor and control the ...
Page 21
Micrel, Inc. HP Auto MDI/MDI-X HP Auto MDI/MDI-X configuration eliminates the confusion of whether to use a straight cable or a crossover cable between the KSZ8051MLL and its link partner. This feature allows the KSZ8051MLL to use either type of ...
Page 22
Micrel, Inc. Crossover Cable A crossover cable connects a MDI device to another MDI device MDI-X device to another MDI-X device. Figure 5 depicts a typical crossover cable connection between two switches or hubs (two MDI-X devices). ® ...
Page 23
Micrel, Inc. NAND Tree Support The KSZ8051MLL provides parametric NAND tree support for fault detection between chip I/Os and board. The NAND tree is a chain of nested NAND gates in which each KSZ8051MLL digital I/O (NAND tree input) pin ...
Page 24
Micrel, Inc. NAND Tree I/O Testing The following procedure can be used to check for faults on the KSZ8051MLL digital I/O pin connections to the board: 1. Enable NAND tree mode by either hardware pin strapping (NAND_Tree#, pin 32) or ...
Page 25
Micrel, Inc. Power Management The KSZ8051MLL offers the following power management modes: Power Saving Mode Power-Saving Mode is used to reduce the transceiver power consumption when the cable is unplugged enabled by writing a one to register 1Fh, ...
Page 26
Micrel, Inc. Reference Circuit for Power and Ground Connections The KSZ8051MLL is a single 3.3V supply device with a built-in regulator to supply the 1.2V core. The power and ground connections are shown in Figure 6 and Table 6 for ...
Page 27
Micrel, Inc. Register Map Register Number (Hex) Description 0h Basic Control 1h Basic Status 2h PHY Identifier 1 3h PHY Identifier 2 4h Auto-Negotiation Advertisement 5h Auto-Negotiation Link Partner Ability 6h Auto-Negotiation Expansion 7h Auto-Negotiation Next Page 8h Link Partner ...
Page 28
Micrel, Inc. Register Description (Continued) Address Name Description Register 0h – Basic Control 1 = Power down mode 0 = Normal operation If software reset (register 0.15) is used to exit Power Down mode (register 0.11 = 1), two 0.11 ...
Page 29
Micrel, Inc. Register Description (Continued) Address Name Description 1 = Link is up 1.2 Link Status 0 = Link is down 1 = Jabber detected 1.1 Jabber Detect 0 = Jabber not detected (default is low) Extended 1 ...
Page 30
Micrel, Inc. Register Description (Continued) Address Name Description Register 5h – Auto-Negotiation Link Partner Ability 1 = Next page capable 5.15 Next Page next page capability 1 = Link code word received from partner 5.14 Acknowledge 0 ...
Page 31
Micrel, Inc. Register Description (Continued) Address Name Description Register 7h – Auto-Negotiation Next Page 1 = Additional next page(s) will follow 7.15 Next Page 0 = Last page 7.14 Reserved 1 = Message page 7.13 Message Page 0 = Unformatted ...
Page 32
Micrel, Inc. Register Description (Continued) Address Name Description Register 16h – Operation Mode Strap Override 16.15:11 Reserved 16.10 Reserved 1 = Override strap-in for B-CAST_OFF B-CAST_OFF 16.9 override If bit is ‘1’, PHY Address 0 is non-broadcast. 16.8 Reserved MII ...
Page 33
Micrel, Inc. Register Description (Continued) Address Name Description Register 18h – Expanded Control 18.15:12 Reserved Energy Detect Power Down mode EDPD 18. Disable Disabled 0 = Enable 1 = Restore received preamble to MII output 100Base-TX 18.10 Preamble ...
Page 34
Micrel, Inc. Register Description (Continued) Address Name Description 1 = Page Receive occurred Page Receive 1b.5 Interrupt 0 = Page Receive did not occurred 1 = Parallel Detect Fault occurred Parallel Detect 1b.4 Fault Interrupt 0 = Parallel Detect Fault ...
Page 35
Micrel, Inc. Register Description (Continued) Address Name Description 1 = PHY in isolate mode 1e.3 PHY Isolate 0 = PHY in normal operation [000] = still in auto-negotiation [001] = 10Base-T half-duplex [010] = 100Base-TX half-duplex Operation [011] = reserved ...
Page 36
Micrel, Inc. Register Description (Continued) Address Name Description [00] = 1f.5:4 LED mode [01] = [10], [11] = Reserved Disable 1 = Disable transmitter 1f.3 Transmitter 0 = Enable transmitter 1 = Remote (analog) loop back is enable Remote 1f.2 ...
Page 37
Micrel, Inc. Absolute Maximum Ratings Supply Voltage ) .................................................. −0.5V to +1.8V (V DD_1.2 ) ....................................... −0.5V to +4. DDIO, DDA_3.3 Input Voltage (all inputs) .............................. −0.5V to +4.0V Output Voltage (all outputs) ......................... −0.5V to +4.0V Lead ...
Page 38
Micrel, Inc. Electrical Characteristics Symbol Parameter 100Base-TX Transmit (measured differentially after 1:1 transformer) V Peak Differential Output Voltage O V Output Voltage Imbalance IMB Rise/Fall Time Rise/Fall Time Imbalance Duty Cycle Distortion Overshoot V Reference ...
Page 39
Micrel, Inc. Timing Diagrams MII SQE Timing (10Base-T) Timing Parameter SQE t SQEP July 2010 Figure 7. MII SQE Timing (10Base-T) Description TXC period TXC pulse width low TXC pulse width high COL ...
Page 40
Micrel, Inc. MII Transmit Timing (10Base-T) Timing Parameter SU1 t SU2 t HD1 t HD2 t CRS1 t CRS2 July 2010 Figure 8. MII Transmit Timing (10Base-T) Description TXC period TXC pulse width ...
Page 41
Micrel, Inc. MII Receive Timing (10Base-T) Timing Parameter RLAT July 2010 Figure 9. MII Receive Timing (10Base-T) Description RXC period RXC pulse width low RXC pulse width high (RXDV, RXD[3:0], RXER) ...
Page 42
Micrel, Inc. MII Transmit Timing (100Base-TX) Timing Parameter SU1 t SU2 t HD1 t HD2 t CRS1 t CRS2 July 2010 Figure 10. MII Transmit Timing (100Base-TX) Description TXC period TXC pulse width ...
Page 43
Micrel, Inc. MII Receive Timing (100Base-TX) Timing Parameter RLAT July 2010 Figure 11. MII Receive Timing (100Base-TX) Description RXC period RXC pulse width low RXC pulse width high (RXDV, RXD[3:0], RXER) ...
Page 44
Micrel, Inc. Auto-Negotiation Timing Timing Parameter t BTB t FLPW CTD t CTC Table 12. Auto-Negotiation Fast Link Pulse (FLP) Timing Parameters July 2010 Figure 12. Auto-Negotiation Fast Link Pulse (FLP) Timing Description FLP Burst to FLP ...
Page 45
Micrel, Inc. MDC/MDIO Timing Timing Parameter Description t MDC period P t MDIO (PHY input) setup to rising edge of MDC MD1 t MDIO (PHY input) hold from rising edge of MDC MD2 MDIO (PHY output) delay from rising edge ...
Page 46
Micrel, Inc. Reset Timing The KSZ8051MLL reset timing requirement is summarized in Figure 14 and Table 14. Parameter Description t Stable supply voltage ( Configuration setup time cs t Configuration hold time ch t Reset to strap-in pin ...
Page 47
Micrel, Inc. Reset Circuit Figure 15 shows a reset circuit recommended for powering up the KSZ8051MLL if reset is triggered by the power supply. Figure 16 represents a reset circuit recommended for applications where reset is driven by another device ...
Page 48
Micrel, Inc. Reference Circuits for LED Strapping Pins The pull-up, float and pull-down reference circuits for the LED1/SPEED and LED0/NWAYEN strapping pins are shown in Figure 17. July 2010 Figure 17. Reference Circuits for LED Strapping Pins 48 KSZ8051MLL M9999-071210-1.0 ...
Page 49
Micrel, Inc. Magnetics Specification A 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode chokes is recommended for exceeding FCC requirements. Table 15 and Table 16 list recommended magnetic characteristics and qualified magnetics for ...
Page 50
Micrel, Inc. Reference Clock – Connection and Selection A crystal or external clock source, such as an oscillator, is used to provide the reference clock for the KSZ8051MLL. For the KSZ8051MLL in all operating modes, the reference clock is 25MHz. ...
Page 51
Micrel, Inc. Package Information Note: ALL DIMENSIONS ARE IN MILLIMETERS. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB The information furnished by Micrel in this data sheet is believed ...