KSZ8041NLAM MICREL [Micrel Semiconductor], KSZ8041NLAM Datasheet
KSZ8041NLAM
Related parts for KSZ8041NLAM
KSZ8041NLAM Summary of contents
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General Description The KSZ8041NL is a single supply 10Base-T/100Base-TX Physical Layer Transceiver, which provides MII/RMII interfaces to transmit and receive data. An unique mixed signal design extends signaling distance while reducing power consumption. HP Auto MDI/MDI-X provides the most robust ...
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Micrel, Inc. Features • Single-chip 10Base-T/100Base-TX physical layer solution • Fully compliant to IEEE 802.3u Standard • Low power CMOS design, power consumption of <180mW • HP auto MDI/MDI-X for reliable detection and correction for straight-through and crossover cables with ...
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Micrel, Inc. Revision History Revision Date Summary of Changes 1.0 10/13/06 Data sheet created. 1.1 4/27/07 Added maximum MDC clock speed. Added 40K +/-30% to note 1 of Pin Description and Strapping Options tables for internal pull-ups/pull- downs. Changed Model ...
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Micrel, Inc. Contents Pin Configuration .................................................................................................................................................................. 8 Pin Description ...................................................................................................................................................................... 9 Strapping Options ............................................................................................................................................................... 12 Functional Description ....................................................................................................................................................... 13 100Base-TX Transmit....................................................................................................................................................... 13 100Base-TX Receive........................................................................................................................................................ 13 PLL Clock Synthesizer...................................................................................................................................................... 13 Scrambler/De-scrambler (100Base-TX only).................................................................................................................... 13 10Base-T Transmit ........................................................................................................................................................... 13 10Base-T Receive ............................................................................................................................................................ ...
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Micrel, Inc. Reference Circuit for Power and Ground Connections .................................................................................................... 23 Register Map........................................................................................................................................................................ 24 Register Description ........................................................................................................................................................... 24 (1) Absolute Maximum Ratings ............................................................................................................................................ 31 (2) Operating Ratings ............................................................................................................................................................ 31 (4) Electrical Characteristics ................................................................................................................................................ 31 (6) Electrical Characteristics ................................................................................................................................................ 32 Timing ...
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Micrel, Inc. List of Figures Figure 1. Auto-Negotiation Flow Chart................................................................................................................................. 15 Figure 2. Typical Straight Cable Connection ....................................................................................................................... 20 Figure 3. Typical Crossover Cable Connection ................................................................................................................... 21 Figure 4. 25MHz Crystal / Oscillator Reference Clock for MII Mode ................................................................................... 22 ...
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Micrel, Inc. List of Tables Table 1. MII Management Frame Format ............................................................................................................................ 16 Table 2. MII Signal Definition ............................................................................................................................................... 17 Table 3. RMII Signal Description.......................................................................................................................................... 19 Table 4. MDI/MDI-X Pin Definition ....................................................................................................................................... 20 Table 5. KSZ8041NL Power Pin Description ....................................................................................................................... ...
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Micrel, Inc. Pin Configuration July 2008 ® 32-Pin (5mm x 5mm) MLF 8 KSZ8041NL M9999-071808-1.2 ...
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Micrel, Inc. Pin Description Pin Number Pin Name Type 1 GND Gnd 2 VDDPLL_1 VDDA_3 RX- I/O 5 RX+ I/O 6 TX- I/O 7 TX+ I REFCLK 10 REXT ...
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Micrel, Inc. Pin Number Pin Name Type 20 RXER / Ipd/O RX_ER / ISO 21 INTRP Opu 22 TXC O 23 TXEN / I TX_EN 24 TXD0 / I TXD[0] 25 TXD1 / I TXD[1] 26 TXD2 I 27 TXD3 ...
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Micrel, Inc. Pin Number Pin Name Type 31 LED1 / Ipu/O SPEED 32 RST# I PADDLE GND Gnd Notes Power supply. Gnd = Ground Input Output. I/O = Bi-directional. Ipd = Input with ...
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Micrel, Inc. Strapping Options Pin Number Pin Name Type 15 PHYAD2 Ipd/O 14 PHYAD1 Ipd/O 13 PHYAD0 Ipu/O 18 CONFIG2 Ipd/O 29 CONFIG1 Ipd/O 28 CONFIG0 Ipd/O 20 ISO Ipd/O 31 SPEED Ipu/O 16 DUPLEX Ipu/O 30 NWAYEN Ipu/O Note: ...
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Micrel, Inc. Functional Description The KSZ8041NL is a single 3.3V supply Fast Ethernet transceiver fully compliant with the IEEE 802.3u Specification. On the media side, the KSZ8041NL supports 10Base-T and 100Base-TX with HP auto MDI/MDI-X for reliable detection ...
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Micrel, Inc. signal and the KSZ8041NL decodes a data frame. The receive clock is kept active during idle periods in between data reception. SQE and Jabber Function (10Base-T only) In 10Base-T operation, a short pulse is put out on the ...
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Micrel, Inc. Start Auto Negotiation Force Link Setting Yes Bypass Auto Negotiation and Set Link Mode July 2008 N Parallel Operation o Attempt Auto Listen for 100BASE-TX Negotiation Idles Join Flow Link Mode Set ? Yes Link Mode Set Figure ...
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Micrel, Inc. MII Management (MIIM) Interface The KSZ8041NL supports the IEEE 802.3 MII Management Interface, also known as the Management Data Input / Output (MDIO) Interface. This interface allows upper-layer devices to monitor and control the state of the KSZ8041NL. ...
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Micrel, Inc. MII Signal Definition The following table describes the MII signals. Refer to Clause 22 of the IEEE 802.3u Specification for detailed information. Direction MII (with respect to PHY, Signal Name KSZ8041NL signal) TXC Output TXEN Input TXD[3:0] Input ...
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Micrel, Inc. Receive Data Valid (RXDV) RXDV is driven by the PHY to indicate that the PHY is presenting recovered and decoded nibbles on RXD[3:0]. • In 10Mbps mode, RXDV is asserted with the first nibble of the SFD (Start ...
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Micrel, Inc. RMII Signal Definition The following table describes the RMII signals. Refer to RMII Specification for detailed information. Direction RMII (with respect to PHY, Signal Name KSZ8041NL signal) REF_CLK Input TX_EN Input TXD[1:0] Input CRS_DV Output RXD[1:0] Output RX_ER ...
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Micrel, Inc. Collision Detection The MAC regenerates the COL signal of the MII from TX_EN and CRS_DV. 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 ...
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Micrel, Inc. Crossover Cable A crossover cable connects a MDI device to another MDI device MDI-X device to another MDI-X device. The following diagram depicts a typical crossover cable connection between two switches or hubs (two MDI-X devices). ...
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Micrel, Inc. Power Management The KSZ8041NL offers the following power management modes: Power Saving Mode This mode is used to reduce power consumption when the cable is unplugged effect when auto-negotiation mode is enabled, cable is disconnected, ...
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Micrel, Inc. Reference Circuit for Power and Ground Connections The KSZ8041NL is a single 3.3V supply device with a built-in 1.8V low noise regulator. The power and ground connections are shown in the following figure and table. Power Pin VDDPLL_1.8 ...
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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 ...
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Micrel, Inc. Address Name Description 0.8 Duplex Mode 1 = Full-duplex 0 = Half-duplex 0.7 Collision Test 1 = Enable COL test 0 = Disable COL test 0.6:1 Reserved 0.0 Disable 0 = Enable transmitter Transmitter 1 = Disable transmitter ...
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Micrel, Inc. Address Name Description Register 3h – PHY Identifier 2 3.15:10 PHY ID Assigned to the 19th through 24th bits of the Number Organizationally Unique Identifier (OUI). Kendin Communication’s OUI is 0010A1 (hex) 3.9:4 Model Number Six bit manufacturer’s ...
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Micrel, Inc. Address Name Description 5.8 100Base- 100Mbps full-duplex capable Full-Duplex 100Mbps full-duplex capability 5.7 100Base- 100Mbps half-duplex capable Half-Duplex 100Mbps half-duplex capability 5.6 10Base 10Mbps full-duplex capable ...
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Micrel, Inc. Address Name Description 8.12 Acknowledge2 1 = Able to act on the information 0 = Not able to act on the information 8.11 Toggle 1 = Previous value of transmitted link code 0 = Previous value of transmitted ...
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Micrel, Inc. Address Name Description 1b.1 Remote Fault 1= Remote Fault occurred Interrupt 0= Remote Fault did not occurred 1b.0 Link Up 1= Link Up occurred Interrupt 0= Link Up did not occurred Register 1Eh – PHY Control 1 1e:15:14 ...
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Micrel, Inc. Address Name Description 1f.11 Force Link 1 = Force link pass 0 = Normal link operation This bit bypasses the control logic and allow transmitter to send pattern even if there is no link. 1f.10 Power Saving 1 ...
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Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ............................................... -0.5V to +2.4V DDPLL_1 ................................... -0.5V to +4.0V DDIO_3.3, DDA_3.3 Input Voltage (all inputs) ............................... -0.5V to +4.0V Output Voltage (all outputs) .......................... -0.5V to +4.0V Lead ...
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Micrel, Inc. Electrical Characteristics 10Base-T Transmit (measured differentially after 1:1 transformer) V Peak Differential Output Voltage P Jitter Added Rise/Fall Time r f 10Base-T Receive V Squelch Threshold SQ Notes ° C. Specification ...
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Micrel, Inc. Timing Diagrams MII SQE Timing (10Base-T) Timing Parameter SQE t SQEP July 2008 Figure 7. MII SQE Timing (10Base-T) Description TXC period TXC pulse width low TXC pulse width high COL ...
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Micrel, Inc. MII Transmit Timing (10Base-T) Timing Parameter SU1 t SU2 t HD1 t HD2 t CRS1 t CRS2 July 2008 Figure 8. MII Transmit Timing (10Base-T) Description TXC period TXC pulse width ...
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Micrel, Inc. MII Receive Timing (10Base-T) Timing Parameter RLAT July 2008 Figure 9. MII Receive Timing (10Base-T) Description RXC period RXC pulse width low RXC pulse width high (RXD[3:0], RXER, RXDV) ...
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Micrel, Inc. MII Transmit Timing (100Base-TX) Timing Parameter SU1 t SU2 t HD1 t HD2 t CRS1 t CRS2 July 2008 Figure 10. MII Transmit Timing (100Base-TX) Description TXC period TXC pulse width ...
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Micrel, Inc. MII Receive Timing (100Base-TX) Timing Parameter RLAT July 2008 Figure 11. MII Receive Timing (100Base-TX) Description RXC period RXC pulse width low RXC pulse width high (RXD[3:0], RXER, RXDV) ...
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Micrel, Inc. RMII Timing Timing Parameter t cyc July 2008 Figure 12. RMII Timing – Data Received from RMII Figure 13. RMII Timing – Data Input to RMII Description Min Clock cycle Setup time ...
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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 2008 Figure 14. Auto-Negotiation Fast Link Pulse (FLP) Timing Description FLP Burst to FLP ...
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Micrel, Inc. MDC/MDIO Timing Timing Parameter Description t MDC period P t MDIO (PHY input) setup to rising edge of MDC 1MD1 t MDIO (PHY input) hold from rising edge of MDC MD2 t MDIO (PHY output) delay from rising ...
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Micrel, Inc. Reset Timing The KSZ8041NL reset timing requirement is summarized in the following figure and table. Parameter After the de-assertion of reset recommended to wait a minimum of 100 ...
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Micrel, Inc. Reset Circuit The following reset circuit is recommended for powering up the KSZ8041NL if reset is triggered by the power supply. The following reset circuit is recommended for applications where reset is driven by another device (e.g., CPU ...
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Micrel, Inc. Reference Circuits for LED Strapping Pins The following figure shows the reference circuits for pull-up, float and pull-down on the LED1 and LED0 strapping pins. July 2008 Figure 19. Reference Circuits for LED Strapping Pins 43 KSZ8041NL M9999-071808-1.2 ...
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Micrel, Inc. Selection of Isolation Transformer 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. The following table gives recommended transformer characteristics. Parameter Turns ratio Open-circuit ...
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Micrel, Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. ...