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SMSC RMII 10/100 manual

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  • Page 1

    SMSC LAN8710/LAN8710i Revision 1.0 (04-15-09) DA T ASHEET Datasheet PRODUCT FEA TURES LAN8710/LAN8710i MII/RMII 10/100 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T echnology in a Small Footprint Highlight s  Single-Chip Ethe rnet Physical Layer T ransceiver (PHY)  Comprehensive flexPWR ® T echnology — Flexible Power Management [...]

  • Page 2

    ORDER NUMBER(S): LAN8710A-EZK FOR 32-PIN, QFN LEAD-FREE ROHS COMPLIANT P AC KAGE (0 TO +85°C TEMP) LAN8710Ai-EZK FOR 32-PIN, QFN LEA D-FREE RO HS COMPLIANT P ACKAGE (-40 T O +85°C TEMP) LAN8710A-EZK-TR FOR 32-PIN, QFN LEAD-FREE RO HS COMPLIAN T P ACK AGE (0 TO +85°C TEMP) LAN8710Ai-EZK-TR FOR 32-PIN, QFN LEAD -FREE ROHS COMPLIANT P ACKAGE (-40 T[...]

  • Page 3

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 3 Revision 1.0 (04-15-09) DA T ASHEET T able of Contents Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1 General Terms [...]

  • Page 4

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 4 SMSC LAN8710/LAN8710i DA T ASHEET 4.7.1 Parallel Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.7.2 Re-starting Auto-negotiat ion . [...]

  • Page 5

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 5 Revision 1.0 (04-15-09) DA T ASHEET 8.1.3 Twisted-Pair Interface Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 8.2 Magnetics Selection . . . . . . . . . . [...]

  • Page 6

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 6 SMSC LAN8710/LAN8710i DA T ASHEET List of Figures Figure 1.1 LAN8710/LAN8710i System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 1.2 LAN8710/LAN8710i Arch[...]

  • Page 7

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 7 Revision 1.0 (04-15-09) DA T ASHEET List of T ables Table 2.1 LAN8710/L AN8 71 0i 32 -P IN QFN Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Table 3.1 Buffer Type[...]

  • Page 8

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 8 SMSC LAN8710/LAN8710i DA T ASHEET Table 6.1 SMI Timing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Table 6.2 100M MII Receive [...]

  • Page 9

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 9 Revision 1.0 (04-15-09) DA T ASHEET Chapter 1 Introduction 1.1 General T erms and Conventions The following is list o f the general terms used in this docume nt: 1.2 General Description The LAN8710/LAN8710i i[...]

  • Page 10

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 10 SMSC LAN8710/LAN8710i DA T ASHEET 1.3 Architectural Overview The LAN8710/LAN871 0i is compliant with IEEE 802.3-2005 standards (MII Pin s tolerant to 3.6V) a nd supports both IEEE 802.3-2005 compliant and ve[...]

  • Page 11

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 1 1 Revision 1.0 (04-15-09) DA T ASHEET Figure 1.2 LAN8710/LAN8 710i Architectura l Overview 10M Rx Logic 100M Rx Logic DSP Syst em: Clock Data Recovery Equalizer Analog-to- Dig i tal 100M PLL Squel ch & Fi[...]

  • Page 12

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 12 SMSC LAN8710/LAN8710i DA T ASHEET Chapter 2 Pin Configuration 2.1 Package Pin-out Di agram and Signal T able Figure 2.1 LAN8710/LAN8 710i 32-QFN Pin Assignments (TOP VIEW) VDD2A LE D 2/n IN TS E L LE D1/ REG[...]

  • Page 13

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 13 Revision 1.0 (04-15-09) DA T ASHEET T able 2.1 LAN8710/LA N871 0i 32-PIN QFN Pinout PIN NO. PIN NAME PIN NO. PIN NAME 1 VDD2A 17 MDC 2 LED2/nINTSEL 18 nINT/TXER/TXD4 3 LED1/REGOFF 19 nRST 4X T A L 2 2 0 T X [...]

  • Page 14

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 14 SMSC LAN8710/LAN8710i DA T ASHEET Chapter 3 Pin Description This chapter describes the signals on each pin. When a lower case “n” is used at the beginning of the signal name, it indicates that the signa [...]

  • Page 15

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 15 Revision 1.0 (04-15-09) DA T ASHEET TXD2 24 I8 Tr a n s m i t D a ta 2 : The MAC transmits data to the transceiver using thi s signal in MII Mode.  This signal should be g rounded in RMII Mode. TXD3 25 I8[...]

  • Page 16

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 16 SMSC LAN8710/LAN8710i DA T ASHEET 3.2 LED Signals RXER/ RXD4/ PHY AD0 13 IOPD RXER – Receive Error : Asserted to indicate th at an error was detected somewhere in the frame presently bei ng transferred fro[...]

  • Page 17

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 17 Revision 1.0 (04-15-09) DA T ASHEET 3.3 Management Signals 3.4 General Signals 3.5 10/100 Line Interface Signals LED2/ nINTSEL 2I O P U LED2 – Li nk S peed LED Indication. See Sect ion 5.3.7 for a descript[...]

  • Page 18

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 18 SMSC LAN8710/LAN8710i DA T ASHEET 3.6 Analog Reference 3.7 Power Signals TXN 28 AIO T ransmit/Receiv e Negative Channel 1 . RXP 31 AIO T ransmit/Receive Positive Channel 2 . RXN 30 AIO T ransmit/Receive Ne g[...]

  • Page 19

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 19 Revision 1.0 (04-15-09) DA T ASHEET Chapter 4 Architecture Det ails 4.1 T op Level Func tional Architecture Functionally , the transceiver can be divided into the following sections:  100Base-TX transmi t[...]

  • Page 20

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 20 SMSC LAN8710/LAN8710i DA T ASHEET 4.2.2 4B/5B Encoding The transmit data passes from the MII block to th e 4B/5B encoder . This block encodes the data from 4-bit nibbles to 5-bit symbols (known as “code-gr[...]

  • Page 21

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 21 Revision 1.0 (04-15-09) DA T ASHEET 4.2.3 Scrambling Repeated data patterns (especially the IDLE code-grou p) can have power spectral den sities with large narrow-band peaks. Scramblin g the data helps elimi[...]

  • Page 22

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 22 SMSC LAN8710/LAN8710i DA T ASHEET 4.2.6 100M Phase Lock Loop (PLL)  The 100M PLL locks on to reference clock and g enera t es the 125MHz clock used to drive the 125 MHz logic and the 100Base-Tx Tr ansmitt[...]

  • Page 23

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 23 Revision 1.0 (04-15-09) DA T ASHEET 4.3.3 NRZI and ML T -3 Decoding The DSP generates the ML T -3 recovered levels that are fed to th e ML T -3 converter . The ML T -3 is th en converted to an NRZI data stre[...]

  • Page 24

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 24 SMSC LAN8710/LAN8710i DA T ASHEET Figure 4.3 Relatio nship Between Recei ved Data and Specific MII Signals 4.3.8 Receiver Errors During a frame, unexpected co de-groups are consid ered receive errors. Expect[...]

  • Page 25

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 25 Revision 1.0 (04-15-09) DA T ASHEET In order to comply with legacy 10Ba se-T MAC/Controllers, in Half-duplex mode th e transceiver loops back the transmitted data, on the receive path. Th is does not confuse[...]

  • Page 26

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 26 SMSC LAN8710/LAN8710i DA T ASHEET 4.5.3 10M Receive Dat a Across the MII/RMII Interface For MII, the 4 bit data nibbles are sent to the MII block. In MII mode, these data nibbles are vali d on the rising edg[...]

  • Page 27

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 27 Revision 1.0 (04-15-09) DA T ASHEET comprised of 16 pins for data and control is de fined. In devices incorpor ating many MACs or transceiver interfaces such as switches, the number of p ins can add signific[...]

  • Page 28

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 28 SMSC LAN8710/LAN8710i DA T ASHEET Note 4.1 In RMII mode, this pin needs to ti ed to VSS. Note 4.2 The RXER signal is optional on the RMII bus. This si gnal is required by the transcei ver , but it is optiona[...]

  • Page 29

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 29 Revision 1.0 (04-15-09) DA T ASHEET The auto-negotiation pro toco l is a p urely physical layer activity and proceeds inde pendently of the MAC controller . The advertised capabilities of the transceiver are[...]

  • Page 30

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 30 SMSC LAN8710/LAN8710i DA T ASHEET Writing register 4 bits [8:5] allows software control of the capabilities advertised by the transce iver . Writing register 4 does not automatically re-start aut o-negotiati[...]

  • Page 31

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 31 Revision 1.0 (04-15-09) DA T ASHEET The internal logic o f the device detects the TX and RX pins of the connecting device. Since the RX and TX line pairs are interchangeable, special PCB design considerati o[...]

  • Page 32

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 32 SMSC LAN8710/LAN8710i DA T ASHEET 4.10 nINTSEL S trapping and LED Polarity Selecti on The nINT , TXER, and TXD4 functions share a comm on pin. There ar e two functional modes for this pin, the TXER/TXD4 mode[...]

  • Page 33

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 33 Revision 1.0 (04-15-09) DA T ASHEET 4.12 PHY Address S trapping The PHY ADDRESS bit s are latched in to an internal register at th e end of a hardware reset. The 3- bit address word [2:0] is input on the PHY[...]

  • Page 34

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 34 SMSC LAN8710/LAN8710i DA T ASHEET applications and in producti on testing, where the sa me reg ister can be written in all the transceivers using a single write transaction. The MDC signal is an aperiodi c c[...]

  • Page 35

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and f lexPWR ® T echnology in a Sm all Footprint Datasheet Revision 1.0 (04-15-09) 35 SMSC LAN8710/LAN8710i DA T ASHEET Chapter 5 SMI Register Mapping T able 5.1 Contro l Register: Register 0 (Basic) 15 14 13 12 1 1 10 9 8 7 6 5 4 3 2 1 0 Reset Loopback Speed Select A/N Enable Power Down Iso[...]

  • Page 36

    SMSC LAN8710/LAN8710i 36 Revision 1.0 (04-15-09) DA T ASHEET MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and f lexPWR ® T echnology in a Sm all Footprint Datasheet T able 5.5 Auto-Negotiation Advertisement: Register 4 (Extended) 15 14 13 12 1 1 10 9 8 7 6 5 4 3 2 1 0 Next Page Reserved Remote Fault Reserved Pause Operation 100Base- T4[...]

  • Page 37

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and f lexPWR ® T echnology in a Sm all Footprint Datasheet Revision 1.0 (04-15-09) 37 SMSC LAN8710/LAN8710i DA T ASHEET RSVD = Reserved T abl e 5.10 Mode Control/ Status Register 17: V endor -Specific 1 5 14 13 12 1 1 10 9 8 7 6 5 4 3 2 1 0 RSVD EDPWRDOWN RSVD LOWSQEN MDPREBP F ARLOOPBACK RS[...]

  • Page 38

    SMSC LAN8710/LAN8710i 38 Revision 1.0 (04-15-09) DA T ASHEET MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and f lexPWR ® T echnology in a Sm all Footprint Datasheet T able 5.15 Special Control/St atus In dicatio ns Register 27: V endor-Specific 1 5 1 4 1 3 1 2 1 1 1 0 98765 4 3 2 1 0 AMDIXCTRL Reserved CH_SELECT Reser ved SQEOFF Reserv[...]

  • Page 39

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 39 Revision 1.0 (04-15-09) DA T ASHEET The following registers a re supported (registe r numbers are in decima l): 5.1 SMI Register Format The mode key is as follow s:  RW = Read/write,  SC = Self cleari [...]

  • Page 40

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 40 SMSC LAN8710/LAN8710i DA T ASHEET T able 5.21 Regis te r 0 - Ba sic Control ADDRESS NAME DESCRIPTION MODE DEFAULT 0.15 Reset 1 = sof tware reset. Bit is self-clearing. For be st results, when setting this bi[...]

  • Page 41

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 41 Revision 1.0 (04-15-09) DA T ASHEET 1.4 Remote Faul t 1 = remote fault condition detected 0 = no remote fault RO/ LH 0 1.3 Auto-Negotiate Ability 1 = able to perform auto -negotiati on function 0 = unable to[...]

  • Page 42

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 42 SMSC LAN8710/LAN8710i DA T ASHEET 4.9 100Base-T4 1 = T4 able, 0 = no T4 ability This Phy does not support 100Base-T4. RO 0 4.8 100Base-TX Full Duplex 1 = TX with full dup lex, 0 = no TX full duplex a bility [...]

  • Page 43

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 43 Revision 1.0 (04-15-09) DA T ASHEET T able 5.27 Register 6 - Auto Negotiation Expansion ADDRESS NAME DESCRIPT IO N MODE DEFAULT 6.15:5 Reserved RO 0 6.4 Parallel Detection Fault 1 = fault detected by paralle[...]

  • Page 44

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 44 SMSC LAN8710/LAN8710i DA T ASHEET 17.6 AL TINT Alternate Interrupt Mode. 0 = Primary interrupt syst em enabled (Default). 1 = Alternate interr upt system enabled. See Section 5.2, "Interrupt Manag ement[...]

  • Page 45

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 45 Revision 1.0 (04-15-09) DA T ASHEET T abl e 5.3 2 Register 2 7 - Speci al Control/St atus Indications ADDRESS NAME DESCRIPTION MODE DEFAULT 27.15 AMDIXCTRL HP Auto-MDIX con trol 0 - Auto-MDIX enable 1 - Auto[...]

  • Page 46

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 46 SMSC LAN8710/LAN8710i DA T ASHEET 29.1 INT1 1 = Auto-Negotiation Page Re ceived 0 = not source of interrupt RO/ LH X 29.0 Reserved Ignore on read. RO/ LH 0 T able 5.35 Register 30 - In terru pt Mask ADDRESS [...]

  • Page 47

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 47 Revision 1.0 (04-15-09) DA T ASHEET 5.2 Interrupt Management The Management interface supports an interrupt cap ability that is not a pa rt of the IEEE 802.3 specification. It generat es an active low asynch[...]

  • Page 48

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 48 SMSC LAN8710/LAN8710i DA T ASHEET Note: The ENERGYON bit 17.1 is defau lted to a ‘1’ at the start of the signal a cquisition process, therefore the Interrupt source fl ag 29.7 will also read as a ‘1’[...]

  • Page 49

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 49 Revision 1.0 (04-15-09) DA T ASHEET in repeater mode or full -duplex mode. Otherwise th e transceiver asserts CRS based on either transmit or receive activity . The carrier sense logic uses the e ncoded, uns[...]

  • Page 50

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 50 SMSC LAN8710/LAN8710i DA T ASHEET 5.3.5.1 General Power-Down This power-down is controlled by register 0, bit 1 1. In this mode the entire transceiver , except the management interface, is powe red-down and [...]

  • Page 51

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 51 Revision 1.0 (04-15-09) DA T ASHEET 5.3.8.1 Near-end Loopback Near-end loopback is a mo de that sends the digital tr ansmit data back out the receive data signals for testing purpose s as indi cate d by th e[...]

  • Page 52

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 52 SMSC LAN8710/LAN8710i DA T ASHEET 5.3.8.3 Connector Loopback The LAN8710/LAN871 0i maintains reliable transmissi on over very short cables, and can be tested in a connector loopba ck as shown in Figure 5.3 .[...]

  • Page 53

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 53 Revision 1.0 (04-15-09) DA T ASHEET 5.3.9.2 M ode Bus – MODE[2:0] The MODE[2:0] bus controls the configuration of the 10/100 digit al block. When the nRST pin is deasserted, the register bit valu es are lo[...]

  • Page 54

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 54 SMSC LAN8710/LAN8710i DA T ASHEET When the nRST pin is deasserted, the register bit 18.14 (MIIMODE) is loaded according to the RXD2/RMIISEL pin. The mode is then con figured by the re gister bit value. W hen[...]

  • Page 55

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 55 Revision 1.0 (04-15-09) DA T ASHEET Chapter 6 AC Electrical Characteristics The timing dia grams and limits in this section define th e requirements placed on the external signals of the Phy . 6.1 Serial Man[...]

  • Page 56

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 56 SMSC LAN8710/LAN8710i DA T ASHEET 6.2 MII 10/100Base-TX/RX T imings 6.2.1 MII 100Base- T TX/RX Timings 6.2.1.1 100M MII Receive Timin g Figure 6.2 100M MII Receive Timing Diagram T able 6.2 100M MII Receive [...]

  • Page 57

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 57 Revision 1.0 (04-15-09) DA T ASHEET 6.2.1.2 100M MII T ransmit Timing Figure 6.3 100M MII T r ansmit Timing Diagram T able 6.3 100M MII T ransmit Timing V alues PARAMETER DESCRIPTION MIN T YP MAX UNITS NOTES[...]

  • Page 58

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 58 SMSC LAN8710/LAN8710i DA T ASHEET 6.2.2 MII 10Base-T TX/RX Timings 6.2.2.1 10M MII Receive Timing Figure 6.4 10M MII Rece ive Timing Diagram T abl e 6.4 10M MII Receive Timing V alues PARAMETER DESCRIPTION M[...]

  • Page 59

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 59 Revision 1.0 (04-15-09) DA T ASHEET 6.2.2.2 10M MII T ransmit Timin g Figure 6.5 10M MII T ra nsmit Timing Diagrams T able 6.5 10M MII T ransmit Timing V alues PARAMETER DESCRIPTION MIN T YP MAX UNITS NOTES [...]

  • Page 60

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 60 SMSC LAN8710/LAN8710i DA T ASHEET 6.3 RMII 10/100Base-TX/RX Ti mings (50MHz REF_CLK IN) 6.3.1 RMII 100Base- T TX/RX Timings (50MHz REF_CLK IN) 6.3.1.1 100M RMII Receive Timing ( 50MHz REF_CLK IN) Figure 6.6 [...]

  • Page 61

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 61 Revision 1.0 (04-15-09) DA T ASHEET 6.3.1.2 100M RMII T ransmit Timing (50MHz REF_CLK IN) Figure 6 .7 100M RMII T ransm it Timing Diagram (50MHz REF_CLK IN) T able 6.7 100M RMII T ransmit Timing V alues (50M[...]

  • Page 62

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 62 SMSC LAN8710/LAN8710i DA T ASHEET 6.3.2 RMII 10Base-T TX/RX Ti mings (50MHz REF_CLK IN) 6.3.2.1 10M RMII Receive Timing (50MHz REF_CLK IN) Figure 6.8 10M RMII Re ceive Timing Diagram (50MHz REF_CLK IN) T abl[...]

  • Page 63

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 63 Revision 1.0 (04-15-09) DA T ASHEET 6.3.2.2 10M RMII T ransmit Timing (50MHz REF_CLK IN) Figure 6.9 10M RMII T r ansmit Timing Diagram (50MHz REF_CLK IN) T abl e 6.9 10M RMII T rans mit Timing V alues (50MH [...]

  • Page 64

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 64 SMSC LAN8710/LAN8710i DA T ASHEET 6.4 RMII CLKIN Requirement s 6.5 Reset T iming T able 6.10 RMII CLKIN (R EF _CL K) Timing V alues PARAMETER DESCRIPTION MIN T YP MAX UNIT S NOTES CLKIN frequency 50 MHz CLKI[...]

  • Page 65

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 65 Revision 1.0 (04-15-09) DA T ASHEET 6.6 Clock Circuit LAN8710/LAN8710i can accept either a 2 5MHz cr ystal or a 25MHz single-ended clock oscillator (±50ppm) input. If the sin gle-ended clock osci llator met[...]

  • Page 66

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 66 SMSC LAN8710/LAN8710i DA T ASHEET Chapter 7 DC Electrical Characteristics 7.1 DC Characteristics 7.1.1 Maximum Guaranteed Ratings S tresses beyond those listed in may cause permanent damage to the device. Ex[...]

  • Page 67

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 67 Revision 1.0 (04-15-09) DA T ASHEET 7.1.1.1 Human Body Model (HBM) Performa nce HBM testing verifies the ability to withstand the ESD strikes like those that occur during hand ling and manufacturing, and is [...]

  • Page 68

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 68 SMSC LAN8710/LAN8710i DA T ASHEET 7.1.3 Power Consumption 7.1.3.1 Power Consumption Device Only Power measurements t aken over the operating condi tions specified. See Sect ion 5.3.5 for a description of the[...]

  • Page 69

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 69 Revision 1.0 (04-15-09) DA T ASHEET 7.1.4 DC Characteristics - I nput and Output Buffers T able 7.5 MII Bus Interface Signals NAME V IH (V) V IL (V) I OH I OL V OL (V) V OH (V) TXD0 0.63 * VDDIO 0.39 * VDDIO[...]

  • Page 70

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 70 SMSC LAN8710/LAN8710i DA T ASHEET Note 7.3 These levels apply when a 0-3.3V Clock is driven into XT AL1/CL KIN and XT AL2 is floating. The maximum input voltage on XT AL1/CLKIN is VDD2A + 0.4V . T able 7.6 L[...]

  • Page 71

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 71 Revision 1.0 (04-15-09) DA T ASHEET Note 7.4 Measured at the lin e side of the transformer , line replaced by 100 Ω (± 1%) resistor . Note 7.5 Offset from 16 nS pulse width at 50% of pulse peak Note 7.6 Me[...]

  • Page 72

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 72 SMSC LAN8710/LAN8710i DA T ASHEET Note 7.7 Min/max voltages guaranteed as me asured with 100 Ω resistive load. T able 7 .12 10BASE-T T ransceiver Chara cteristics P ARAMETER SYMBOL MIN TYP MAX UNITS NOTES T[...]

  • Page 73

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 73 Revision 1.0 (04-15-09) DA T ASHEET Chapter 8 Application Notes 8.1 Application Diagram The LAN8710 requires few ex ternal components. T he voltage on the magnetics center tap can range from 2.5 - 3.3V . 8.1[...]

  • Page 74

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 74 SMSC LAN8710/LAN8710i DA T ASHEET 8.1.2 Power Supply Diagram 8.1.3 T wisted-Pair Interface Diagram Figure 8.2 High-Level System Diagram fo r Power Figure 8.4 Copper Interface Diagram LAN8710 32-QFN RBIAS 32 [...]

  • Page 75

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 75 Revision 1.0 (04-15-09) DA T ASHEET 8.2 Magnetics Selection For a list of magnetics selecte d to operate with the SMSC LAN8 710, please refer to the Ap plication note “AN 8-13 Suggested Magne tics”. http[...]

  • Page 76

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 76 SMSC LAN8710/LAN8710i DA T ASHEET Chapter 9 Package Outline Notes: 1. Controlling Unit: millimeter . 2. Dimension b applies to pl ated terminals and is measured between 0.1 5mm and 0.30mm from the terminal t[...]

  • Page 77

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 77 Revision 1.0 (04-15-09) DA T ASHEET Figure 9.1 QFN, 5x5 T aping Dimensions a nd Part Orient ation[...]

  • Page 78

    MII/RMII 10/100 Ethernet T ransceiver with HP Auto-M DIX and flexPWR ® T echnology in a Sma ll Footprint Datasheet Revision 1.0 (04-15-09) 78 SMSC LAN8710/LAN8710i DA T ASHEET Figure 9 .2 Reel Dimensions for 12mm Carrier T ape[...]

  • Page 79

    MII/RMII 10/10 0 Ethernet T ransceiver with HP Auto-MDIX and flexPWR ® T e chnology in a Small Footpr in t Datasheet SMSC LAN8710/LAN8710i 79 Revision 1.0 (04-15-09) DA T ASHEET Note: S tandard reel size is 4000 pieces per reel. Figure 9.3 T ape Le ngth and Part Q uantity[...]