KSZ8001SLI Micrel Semiconductor, Inc., KSZ8001SLI Datasheet

Page 1

General Description The KSZ8001 is a 10BASE-T/100BASE-TX/100BASE-FX Physical Layer Transceiver, operating the core at 1.8 volts to meet low voltage and low power requirements. The solution provides MII/RMII/SMII interfaces to transmit and receive data. A unique mixed-signal design extends signaling ...

Page 2

... Single 3.3V power supply with built-in 1.8V regulator (‘L’ parts) • 48 Pin LQFP, 48 Pin SSOP Ordering Information Part Integrated Number LDO KSZ8001L Yes KSZ8001LI Yes KSZ8001S No KSZ8001SL Yes KSZ8001SLI Yes March 2006 Temperature Package Range –70 C 48-LQFP, Lead-free o o -40 –85 C 48-LQFP, Lead-free ...

Page 3

Micrel Revision History Revision Date PRELIMINARY 25 Mar 2004 0.8 9 Aug 2004 0.81 17 Sep 2004 0.82 25 Jan 2005 1.00 31 Mar 2005 1.01 16 May 2005 1.02 30 Jan 2006 1.03 7 March 2006 March 2006 Summary ...

Page 4

Micrel Table of Contents Pin Description .................................................................................................................................................................................... 6 Strapping Options ............................................................................................................................................................................. 10 Pin Configuration .............................................................................................................................................................................. 11 Functional Description...................................................................................................................................................................... 12 100BASE-TX Transmit .................................................................................................................................................................... 12 100BASE-TX Receive ..................................................................................................................................................................... 12 PLL Clock Synthesizer .................................................................................................................................................................... 12 Scrambler/De-scrambler (100BASE-TX only).................................................................................................................................. 12 10BASE-T Transmit......................................................................................................................................................................... 12 10BASE-T ...

Page 5

Micrel Register 5h – Auto-Negotiation Link Partner Ability......................................................................................................................... 28 Register 6h – Auto-Negotiation Expansion ...................................................................................................................................... 28 Register 7h – Auto-Negotiation Next Page ...................................................................................................................................... 29 Register 8h – Link Partner Next Page Ability................................................................................................................................... 29 Register 15h – RXER Counter......................................................................................................................................................... 29 Register ...

Page 6

Micrel Pin Description Pin Number Pin Name 1 MDIO 2 MDC 3 RXD3/ PHYAD1 4 RXD2/ PHYAD2 5 RXD1/ RXD[1]/ PHYAD3 6 RXD0/ RXD[0]/ RX PHYAD4 7 VDDIO 8 GND 9 RXDV/ CRSDV/ PCS_LPBK 10 RXC/ SMII_SELE CT 11 RXER/ ...

Page 7

Micrel Pin Number Pin Name 17 TXD0/ TXD[0 TXD1/ TXD[1]/ SYNC 19 TXD2 20 TXD3 21 COL / RMII_SELE CT 22 CRS/ RMII_BTB 23 GND 24 VDDIO 25 INT#/ PHYAD0 26 LED0/ TEST 27 LED1 / SPD100/ noFEF ...

Page 8

Micrel Pin Number Pin Name 28 LED2/ DUPLEX 29 LED3/ NWAYEN 30 PD# March 2006 (Note 1) Type Pin Function LED mode = 01 Speed Pin State 10BT H 100BT L LED mode = 10 100Mbps Link Pin State No ...

Page 9

Micrel Pin Number Pin Name 31 VDDRX 32 RX- 33 RX+ 34 FXSD/ FXEN 35 GND 36 GND 37 REXT 38 VDDRCV 39 GND 40 TX GND VDDPLL ...

Page 10

Micrel Note 5: MII Tx Mode: The TXD[3..0] bits are synchronous with TXCLK. When TXEN is asserted, TXD [3..0] presents valid data from the MAC through the MII. TXD [3..0] has no effect when TXEN is de-asserted. Note 6: RMII ...

Page 11

Micrel Pin Configuration Top View 1 MDIO SSOP 48 2 MDC 3 RXD3/PHYAD1 RXD2/PHYAD2 4 RXD1/PHYAD3 5 RXD0/PHYAD4 6 VDDIO 7 GND 8 RXDV/PCS_LPBK 9 10 RXC KSZ8001S 11 RXER/ISO 12 GND VDDC 13 TXER 14 15 TXC/REF_CLK 16 TXEN ...

Page 12

Micrel Functional Description 100BASE-TX Transmit The 100BASE-TX transmit function performs parallel-to-serial conversion, NRZ to NRZI conversion, MLT-3 encoding and transmission. The circuitry starts with a parallel-to-serial conversion, which converts the 25 MHz, 4-bit nibbles into a 125 MHz serial bit ...

Page 13

Micrel SQE and Jabber Function (10BASE-T only) In 10BASE-T operation, a short pulse will be put out on the COL pin after each packet is transmitted. This is required as a test of the 10BASE-T transmit/receive path and is called ...

Page 14

Micrel Receive Clock (RXC): For 100BASE-TX links, the receive clock is continuously recovered from the line. If the link goes down, and auto-negotiation is disabled, the receive clock then operates off the master input clock (X1 or TXC). For 10BASE-T ...

Page 15

Micrel Reference Clock (REF_CLK) REF_CLK is a continuous 50 MHz clock that provides the timing reference for CRS_DV, RXD[1:0], TX_EN, TXD[1:0], and RX_ER. REF_CLK is sourced by the MAC or an external source. Switch implementations may choose to provide REF_CLK ...

Page 16

Micrel RMII AC Characteristics RMII Transmit Timing REF_CLK TXD[1:0] TXEN Parameter REF_CLK Frequency TXD[1:0], TX_EN, Data Setup to REF_CLK rising edge TXD[1:0], TX_EN, Data hold from REF_CLK rising edge RMII Receive Timing REF_CLK RXD[1:0] RXDV RXER Parameter REF_CLK Frequency RXD[1:0], ...

Page 17

Micrel SMII Signal Definition SMII is composed of two signals per port, a global synchronization signal, and a global 125MHz reference clock. All signals are synchronous to the clock. All SMII I/F uses a common 125MHz reference clock and SYNC ...

Page 18

Micrel CRS RX_DV RXD0 X 0 RX_ER from previous frame X 1 One Data Byte (Two MII Data Nibble) TXD7 – 0 Encoding Inter-frame status bit RXD5 conveys the validity of the upper nibble of the byte of the previous ...

Page 19

Micrel As far as the PHY is concerned, TXD7-0 are used to convey only packet data. To allow for a direct MAC-to-MAC connection, the MAC uses TXD7-0 to signal ‘status’ in between frames. TX_ER TX_EN TXD7 ...

Page 20

Micrel Timing Specification Parameter Input Setup Input Hold Output Delay March 2006 Min Max 1 KSZ8001 Units Revision 1.03 ...

Page 21

Micrel HP Auto Crossover (Auto MDI/MDI-X) Automatic MDI/MDI-X configuration is intended to eliminate the need for crossover cables between similar devices. The assignment of pin-outs for a 10/100 BASE-T crossover function cable is shown below. This feature can eliminate the ...

Page 22

Micrel Auto MDI/MDI-X Cross-Over Transformer Connection KSZ8001 features HP Auto MDI/MDI-X crossover and requires symmetric transformers that support Auto MDI/MDI-X. “Selection of Isolation Transformer” for a list of transformers that support Auto MDI/MDI-X. Power Management The KSZ8001 offers the following ...

Page 23

Micrel To the SD pin of the Fiber Module LinkMD Cable Diagnostics The KSZ8001 utilizes time domain reflectometry (TDR) to analyze the cabling plant for common cabling problems such as open circuits, short circuits and impedance mismatches. LinkMD works by ...

Page 24

Micrel Reference Clock Connection Options KSZ8001 is capable of performing three different kinds of clock speed options for connecting the external reference clock depends upon the different interface of using MII/RMII/SMII. The figures below illustrate the recommended connection for using ...

Page 25

Micrel Circuit Design Reference for Power Supply The following diagram shows the power connections for the single 3.3V supply KSZ8001L and KSZ8001SL devices. Ferrite 3.3A Bead 1uF 0.1uF 38 VDDRCV VDDIO 7 3.3V 24 VDDIO March 2006 Ferrite 1.8PLL 1.8A ...

Page 26

Micrel Register Map Register No 9h-14h 15h 16h – 1ah 1bh 1ch 1dh 1eh 1fh Address Name Register 0h – Basic Control 0.15 Reset 0.14 Loop-back 0.13 Speed Select (LSB) 0.12 ...

Page 27

Micrel Address Name Register 1h – Basic Status 1.15 100BASE-T4 1.14 100BASE-TX Full Duplex 1.13 100BASE-TX Half Duplex 1.12 10BASE-T Full Duplex 1.11 10BASE-T Half Duplex 1.10:7 Reserved 1.6 No Preamble 1.5 Auto- Negotiation Complete 1.4 Remote Fault 1.3 Auto- ...

Page 28

Micrel Address Name 4.10 Pause 4.9 100BASE-T4 4.8 100BASE-TX Full Duplex 4.7 100BASE-TX 4.6 10BASE-T Full Duplex 4.5 10BASE-T 4.4:0 Selector Field Register 5h – Auto-Negotiation Link Partner Ability 5.15 Next Page 5.14 Acknowledge 5.13 Remote Fault 5.12 Reserved 5.11:10 ...

Page 29

Micrel Address Name 6.4 Parallel Detection Fault 6.3 Link Partner Next Page Able 6.2 Next Page Able 6.1 Page Received 6.0 Link Partner Auto- Negotiation Able Register 7h – Auto-Negotiation Next Page 7.15 Next Page 7.14 Reserved 7.13 Message Page ...

Page 30

Micrel Address Name Register 1bh – Interrupt Control/Status Register 1b.15 Jabber Interrupt Enable 1b.14 Receive Error Interrupt Enable 1b.13 Page Received Interrupt Enable 1b.12 Parallel Detect Fault Interrupt Enable 1b.11 Link Partner Acknowledge Interrupt Enable 1b.10 Link Down Interrupt Enable ...

Page 31

Micrel Address Name 1d.14:13 Cable diagnostic test result 1d.12:9 Reserved 1d.8:0 Cable fault counter Register 1eh – PHY Control 1e:15:14 LED mode 1e.13 Polarity 1e.12 Far end fault detect 1e.11 MDIX/MDI state 1e:10:8 Reserved 1e:7 Remote loopback 1e:6:0 Reserved Register ...

Page 32

Micrel Address Name 1f:14 MDI/MDI-X Select 1f:13 Pairswap disable 1f.12 Energy detect 1f.11 Force link 1f.10 Power Saving 1f.9 Interrupt Level 1f.8 Enable Jabber 1f.7 Auto- Negotiation Complete 1f.6 Enable Pause (Flow-Control Result) 1f.5 PHY Isolate 1f.4:2 Operation Mode Indication ...

Page 33

Micrel Absolute Maximum Rating Storage Temperature (T ) ………… -55°C to +150°C S Supply Referenced to GND…… ….……-0.5V to +4.0 All pins …………………………………....-0.5V to +4.0 Important: Please read the Notes at the end of the Electrical Characteristics. March 2006 (Note ...

Page 34

... Micrel Package Thermal Resistance ( θ Thermal Resistance Airflow Velocity (m/s) KSZ8001L / KSZ8001LI KSZ8001SL / KSZ8001SLI KSZ8001S Electrical Characteristics Symbol Parameter (Note 5) Total Supply Current KSZ8001L - Current consumption is for the single 3.3V supply KSZ8001L device only, and includes the 1.8V supply voltages (VDDRX, VDDPLL) that are provided by the KSZ8001L via power output pin 13 (VDDC). ...

Page 35

Micrel 10BASE-T Transmit (measured differentially after 1:1 transformer) Peak Differential Ouput V P Voltage V Output Voltage Imbalance IMB t t Rise/Fall Time r, t Clock Outputs X1, X2 Crystal Oscillator RXC Receive Clock, 100TX 100 RXC Receive Clock, 10T ...

Page 36

Micrel Timing Diagrams seT ...

Page 37

Micrel 100BaseTX MII Transmit Timing TXC t SU2 TXEN t SU1 TXD[3:0], Data TXER In CRS TX+/TX- t TXD[3:0] Setup to TXC High SU1 t TX_ER Setup to TXC High SU2 t TXD[3:0] Hold after TXC High HD1 t TXER ...

Page 38

Micrel seT eceiv tart tream ...

Page 39

Micrel Auto Negotiation / Fast Link Pulse Timing TX+/TX- TX+/TX- t FLP burst to FLP burst BTB t FLP burst width FLPW t Clock/Data pulse width PW t Clock pulse to data pulse CTD t Clock pulse to clock pulse ...

Page 40

Micrel Serial Management Interface Timing MDC t MD1 MDIO (Into Chip) MDIO (Out of Chip) t MDC period P t MDIO Setup to MDC (MDIO as input) MD1 t MDIO Hold after MDC (MDIO as input) MD2 t MDC to ...

Page 41

Micrel Reset Timing Diagram Supply Voltage RST_N Strap-In Value Reset Timing Parameters Parameter Description t Stable supply voltages to reset high sr Reset Circuit Diagram Micrel recommends the following discrete reset circuit when powering up the KSZ8001 device. March 2006 ...

Page 42

Micrel For the application where the reset circuit signal comes from another device (e.g., CPU, FPGA, etc), the following reset circuit is recommended. KSZ8001 RST# Recommended Circuit for Interfacing with CPU/FPGA Reset At power-on-reset and D1 provide the ...

Page 43

Micrel Reference Circuit for Strapping Option Configuration The following figure shows the reference circuits for external pull-up and pull-down on the LED strapping pins. KSZ8001 Pull Down KSZ8001 Reference circuits for unm anaged program m ing through LED ports March ...

Page 44

Micrel Selection of Isolation Transformer A 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode choke is recommended for exceeding FCC requirements. The following table gives recommended transformer characteristics. Parameter Turns Ratio Open-Circuit Inductance ...

Page 45

Micrel Package Information March 2006 45 KSZ8001 Revision 1.03 ...

Page 46

Micrel MICREL, INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL: +1 (408) 944-0800 The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its ...