Manuale d’uso / di manutenzione del prodotto LAN8710i del fabbricante SMSC
Vai alla pagina of 79
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 Foo.
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.
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 . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . .
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 . . . . . .
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 . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 .
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.
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 .
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.
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.
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 .
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.
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.
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.
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.
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.
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 .
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 .
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.
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.
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.
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”.
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.
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.
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 .
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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il SMSC LAN8710i è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del SMSC LAN8710i - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso SMSC LAN8710i imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul SMSC LAN8710i ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il SMSC LAN8710i, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del SMSC LAN8710i.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il SMSC LAN8710i. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo SMSC LAN8710i insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.