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SMSC USB2512Ai manuale d’uso - BKManuals
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SMSC USB2512Ai manuale d’uso

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Un buon manuale d’uso

Le regole impongono al rivenditore l'obbligo di fornire all'acquirente, insieme alle merci, il manuale d’uso SMSC USB2512Ai. La mancanza del manuale d’uso o le informazioni errate fornite al consumatore sono la base di una denuncia in caso di inosservanza del dispositivo con il contratto. Secondo la legge, l’inclusione del manuale d’uso in una forma diversa da quella cartacea è permessa, che viene spesso utilizzato recentemente, includendo una forma grafica o elettronica SMSC USB2512Ai o video didattici per gli utenti. La condizione è il suo carattere leggibile e comprensibile.

Che cosa è il manuale d’uso?

La parola deriva dal latino "instructio", cioè organizzare. Così, il manuale d’uso SMSC USB2512Ai descrive le fasi del procedimento. Lo scopo del manuale d’uso è istruire, facilitare lo avviamento, l'uso di attrezzature o l’esecuzione di determinate azioni. Il manuale è una raccolta di informazioni sull'oggetto/servizio, un suggerimento.

Purtroppo, pochi utenti prendono il tempo di leggere il manuale d’uso, e un buono manuale non solo permette di conoscere una serie di funzionalità aggiuntive del dispositivo acquistato, ma anche evitare la maggioranza dei guasti.

Quindi cosa dovrebbe contenere il manuale perfetto?

Innanzitutto, il manuale d’uso SMSC USB2512Ai dovrebbe contenere:
- informazioni sui dati tecnici del dispositivo SMSC USB2512Ai
- nome del fabbricante e anno di fabbricazione SMSC USB2512Ai
- istruzioni per l'uso, la regolazione e la manutenzione delle attrezzature SMSC USB2512Ai
- segnaletica di sicurezza e certificati che confermano la conformità con le norme pertinenti

Perché non leggiamo i manuali d’uso?

Generalmente questo è dovuto alla mancanza di tempo e certezza per quanto riguarda la funzionalità specifica delle attrezzature acquistate. Purtroppo, la connessione e l’avvio SMSC USB2512Ai non sono sufficienti. Questo manuale contiene una serie di linee guida per funzionalità specifiche, la sicurezza, metodi di manutenzione (anche i mezzi che dovrebbero essere usati), eventuali difetti SMSC USB2512Ai e modi per risolvere i problemi più comuni durante l'uso. Infine, il manuale contiene le coordinate del servizio SMSC in assenza dell'efficacia delle soluzioni proposte. Attualmente, i manuali d’uso sotto forma di animazioni interessanti e video didattici che sono migliori che la brochure suscitano un interesse considerevole. Questo tipo di manuale permette all'utente di visualizzare tutto il video didattico senza saltare le specifiche e complicate descrizioni tecniche SMSC USB2512Ai, come nel caso della versione cartacea.

Perché leggere il manuale d’uso?

Prima di tutto, contiene la risposta sulla struttura, le possibilità del dispositivo SMSC USB2512Ai, l'uso di vari accessori ed una serie di informazioni per sfruttare totalmente tutte le caratteristiche e servizi.

Dopo l'acquisto di successo di attrezzature/dispositivo, prendere un momento per familiarizzare con tutte le parti del manuale d'uso SMSC USB2512Ai. Attualmente, sono preparati con cura e tradotti per essere comprensibili non solo per gli utenti, ma per svolgere la loro funzione di base di informazioni e di aiuto.

Sommario del manuale d’uso

  • Pagina 1

    SMSC USB2512Ai DA T ASHEET Revision 1.97 (08-1 1- 08) Datasheet PRODUCT FEA TURES USB2512Ai Industrial T emperature Rated USB 2.0 Hi-S peed 2-Port Hub Controller General Description The SMSC 2-Port Hub is a low power , OEM configurable, STT (single transaction translator) Hub controller IC with 2 downstream ports for embedded USB solutions. The 2-p[...]

  • Pagina 2

    ORDER NUMBER: USB2512Ai-AEZG FOR 36 PIN, QFN LE AD-FREE ROHS COMPLIANT PACKAGE Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 2 SMSC USB2512Ai DA T ASHEET 80 ARKA Y DRIVE, HAUPP AUGE, NY 1 1788 (631) 435-6000 , F AX (631) 273-3123 Copyright © 20 08 SMSC or it s subsidiaries. All r ights res[...]

  • Pagina 3

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 3 Revision 1.97 (08-1 1-08) DA T ASHEET T able of Content s Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . [...]

  • Pagina 4

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 4 SMSC USB2512Ai DA T ASHEET List of Figures Figure 1.1 USB2512Ai 36-Pin QFN (Embedded Footprint). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2.1 USB2512Ai Block Diagram . . . . . . . . . . . . . . . . . . . .[...]

  • Pagina 5

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 5 Revision 1.97 (08-1 1-08) DA T ASHEET List of T ables Table 3.1 USB2512Ai Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 3.2 SMBus or EEPROM Interfac e Behavior . . . . . . .[...]

  • Pagina 6

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 6 SMSC USB2512Ai DA T ASHEET Chapter 1 Pin Configuration Figure 1.1 USB2512Ai 36-Pin QFN (Embedd ed Footprint) Thermal Slug (must be connected to VSS) SMSC USB2512Ai Embedded Footprint (Top View Q FN-3 6) Indicates pins on the bottom of the devi[...]

  • Pagina 7

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 7 Revision 1.97 (08-1 1-08) DA T ASHEET Chapter 2 Block Diagram Figure 2.1 USB2512Ai Block Diagram To U pst ream V BUS 3. 3V U pst ream PHY Up s t r e a m USB Da t a R epeat e r Con t r ol l er SI E Ser i al In te r f a c e PLL 24 M H z C r yst al To EEPR [...]

  • Pagina 8

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 8 SMSC USB2512Ai DA T ASHEET Chapter 3 Pin Descriptions 3.1 Pin Descriptions This section provides a detailed description of each signal. The signals are arranged in functional groups according to their associated interface. The “N” symbol i[...]

  • Pagina 9

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 9 Revision 1.97 (08-1 1-08) DA T ASHEET RBIAS 35 I-R USB T ranscei ver Bias A 12.0k Ω (+/- 1%) resistor is attached from ground to this pin to set the transceiver ’s internal bias settings. SERIAL PORT INTERF ACE SDA/ SMBDA T A/ NON_REM1 22 I/OSD12 Seri[...]

  • Pagina 10

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 10 SMSC USB2512Ai DA T ASHEET XT AL2 32 OCLKx Crystal Output 24MHz Crystal This is the other terminal of the crystal, or a NO CONNECT when an external clock source is used to drive XT AL1/CLKIN. Note: This output must not be used to drive any ex[...]

  • Pagina 11

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 1 1 Revision 1.97 (08-1 1-08) DA T ASHEET T able 3.2 SMBus or EEPROM Interface Behavior CFG_SEL1 CFG_SEL0 SMBUS OR EEPROM INTERFACE BEHAVIOR 0 0 Internal Default Configurati on  S trap Options Enabl ed 0 1 Configured as an SMBus slave for e xternal down[...]

  • Pagina 12

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 12 SMSC USB2512Ai DA T ASHEET 3.2 Buffer T ype Descriptions T able 3.4 Buffer T y pe Descriptions BUFFER DESCRIPTION I/O Input/Output. IPD Input with internal weak pull -down resistor . IPU Input with internal weak pull-u p resistor . IS Input w[...]

  • Pagina 13

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 13 Revision 1.97 (08-1 1-08) DA T ASHEET Chapter 4 Configuration Options 4.1 2-Port Hub SMSC’s USB 2.0 2-Port Hub is fully specification co mpliant to the Universal Serial Bus S pecifica tion Revision 2.0 April 27, 2000 (12/7/2000 and 5/28/2002 Errata). [...]

  • Pagina 14

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 14 SMSC USB2512Ai DA T ASHEET 4.2.1.1 Register 00h: V e ndor ID (LSB) 03h R/W PID MSB PIDM 25h 0x00 04h R/W DID LSB DIDL A0h 0x00 05h R/W DID MSB DIDM 0Ah 0x00 06h R/W Config Da ta Byte 1 CFG1 8Bh 0x00 07h R/W Config Data Byte 2 CFG2 10h 0x00 08[...]

  • Pagina 15

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 15 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.2 Register 01h: V e ndor ID (MSB) 4.2.1.3 Register 02h: Product ID (LSB) 4.2.1.4 Register 03h: Product ID (MSB) 4.2.1.5 Register 04h: Device ID (LSB) 4.2.1.6 Register 05h: Device ID (MSB) BIT NUMBER BIT NAME D[...]

  • Pagina 16

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 16 SMSC USB2512Ai DA T ASHEET 4.2.1.7 Register 06h: CONFIG_BYTE_1 BIT NUMBER BIT NAME DESCRIPTION 7 SELF_BUS_PWR Self or Bus Power: Selects between Self- and Bus-Powered operation. The Hub is either Sel f-Powered (dra ws less than 2mA of upstrea[...]

  • Pagina 17

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 17 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.8 Register 07h: Configurat ion Dat a Byte 2 0 PORT_PWR Port Power Switchi ng: Enables power switching on all ports simultaneously (ganged), or port power is indi vidually sw itched on and off on a port- by-por[...]

  • Pagina 18

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 18 SMSC USB2512Ai DA T ASHEET 4.2.1.9 Register 08h: Configurat ion Dat a Byte 3 4.2.1.10 Register 09h: No n-Removable De vice BIT NUMBER BIT NAME DESCRIPTION 7:4 Reserved Reserved 3 PRTMAP_EN Port Re-ma pping enable : Selects the method used by [...]

  • Pagina 19

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 19 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.1 1 Register 0Ah: Port Disa ble For Self-Powered Op eration 4.2.1.12 Register 0Bh: Port Di sable For Bus-Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7:0 PORT_DIS_SP Port Disable Self-Powered: Disables 1 [...]

  • Pagina 20

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 20 SMSC USB2512Ai DA T ASHEET 4.2.1.13 Register 0Ch: Max Powe r For Self-Powered Operation 4.2.1.14 Register 0Dh: Max Power For Bus -Powered Operation 4.2.1.15 Register 0Eh: Hub Controller Max Current Fo r Self-Powered Operation BIT NUMBER BIT N[...]

  • Pagina 21

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 21 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.16 Register 0Fh: Hu b Controller Max Current For Bus-Powered Operation 4.2.1.17 Register 10h: Power-On T ime 4.2.1.18 Register F6h: Bo ost_Up BIT NUMBER BIT NAME DESCRIPTION 7:0 HC_MAX_C_BP Hub Controller Max [...]

  • Pagina 22

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 22 SMSC USB2512Ai DA T ASHEET 4.2.1.19 Register F8h: Boost_2:0 4.2.1.20 Register F Ah: Port Swap BIT NUMBER BIT NAME DESCRIPTION 7:4 Reserved Reserved 3:2 BOOST_IOUT_2 USB el ectrical signaling drive strength Boost Bit for Downstream Port ‘2?[...]

  • Pagina 23

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 23 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.21 Register FBh: Port Remap 12 BIT NUMBER BIT NAME DESCRIPTION 7:0 PRTR12 Port remap register for ports 1 & 2. When a hub is enumerated b y a USB Host Controller , the hub is only permitted to report how m[...]

  • Pagina 24

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 24 SMSC USB2512Ai DA T ASHEET 4.2.1.22 Register FFh: S tatus/Co mmand 4.2.2 I 2 C EEPROM The I 2 C EEPROM interface implements a subset of the I 2 C Master S pecification (Pleas e refer to the Philips Semiconductor S tandard I 2 C-Bus Specificat[...]

  • Pagina 25

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 25 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.3 In-Circuit EEPROM Programming The EEPROM can be programmed via A T E by pulling RESET_N low (which tri-states the Hub’ s EEPROM interface and allows an exter nal source to program the EEPROM). 4.3 SMBus Slav[...]

  • Pagina 26

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 26 SMSC USB2512Ai DA T ASHEET Figure 4.1 Block Write Block Read A Block Read differs from a block write in that th e repeated start conditio n exists to satisfy the I 2 C specification’s requirement for a ch ange in the t ransfer direction . F[...]

  • Pagina 27

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 27 Revision 1.97 (08-1 1-08) DA T ASHEET 4.3.5 Stretching the SCLK Signal The Hub supports stretching o f the SCLK by othe r device s on the SMBus. The Hub does not stretch the SCLK. 4.3.6 SMBus Timing The SMBus Slave Interface co mplie s with the SMBus AC[...]

  • Pagina 28

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 28 SMSC USB2512Ai DA T ASHEET 4.6.2 External Hardware RESET_N A valid hardware reset is defined as assertion of RESET_N for a minimum of 1us after all power supplies are within ope rating range. While reset is asserted, the Hub (and its associat[...]

  • Pagina 29

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 29 Revision 1.97 (08-1 1-08) DA T ASHEET Notes:  When in Bus-Powered mode, the Hub and its associated circuitry must not consume more than 100mA from the upstream USB power source during t1+t5.  All Power Supplies mu st have reached th e operating le[...]

  • Pagina 30

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 30 SMSC USB2512Ai DA T ASHEET 4.6.2.3 RESET_N for SMBus Slave Configuration Figure 4.5 Reset_N Timing for SMBus Mode Notes:  For Bus-Powered configu rations, the 99.5ms (MAX) is re quired, and the Hu b and its associated circuitry must not co[...]

  • Pagina 31

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 31 Revision 1.97 (08-1 1-08) DA T ASHEET 4. Clears all TT buffers. 5. Moves device from suspended to active (if suspende d). 6. Complies with Section 1 1.10 of the USB 2.0 S pecif ication for be havior after completion of the reset sequence. The Host then [...]

  • Pagina 32

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 32 SMSC USB2512Ai DA T ASHEET Chapter 5 DC Parameters 5.1 Maximum Guaranteed Ratings Note 5.1 S tresses above the specified parameters co uld cause permanent damage to the device. This is a stress rating only and fun ctional operation of the dev[...]

  • Pagina 33

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 33 Revision 1.97 (08-1 1-08) DA T ASHEET 5.2 Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENT S Operating T e mperature T A -40 85 °C Ambient temperature in still air . 1.8V supply voltage V DDA18PLL V DD18 1.62 1 .98 V 3.3V supply voltage V DD[...]

  • Pagina 34

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 34 SMSC USB2512Ai DA T ASHEET Notes: 1. Output leakage i s measured with the current pins in high impedance. 2. See USB 2.0 S pecification for U SB DC electrical characteristics. ICLK Input Buffer Low Input Leve l High Input Level Input Leakage [...]

  • Pagina 35

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 35 Revision 1.97 (08-1 1-08) DA T ASHEET CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD18 , V DDPLL = 1.8 V T able 5.2 Pin Cap a citance LIMIT S PARAMETER SYMBOL MIN T YP MAX UNIT T EST CONDITION Clock Input Capacitance C XT AL 2 pF A ll pi ns except USB pins [...]

  • Pagina 36

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 36 SMSC USB2512Ai DA T ASHEET Chapter 6 AC S pecifications 6.1 Oscillator/Clock Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ± 350ppm. External Clock: 50% Duty cycl e ± 1 0 % , 2 4 M H z ± 350ppm, Jitter < 100 ps rms. Figure 6.1 T [...]

  • Pagina 37

    Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 37 SMSC USB2512Ai DA T ASHEET Chapter 7 Package Outline Figure 7.1 36-Pin QFN, 6x6mm Body , 0.5mm Pitch[...]