Manuale d’uso / di manutenzione del prodotto USB2514 del fabbricante SMSC
Vai alla pagina of 49
SMSC USB2514 DA T ASHEET Revision 1.98 (1 1-19- 07) Datasheet PRODUCT FEA TURES USB2514 USB 2.0 High-S peed 4-Port Hub Controller General Description The SMSC 4-Port Hub is low power , OEM configurable, MTT (multi transaction transl ator) hub controller IC with 4 downstream ports for embedded USB solutions.
ORDER NUMBERS: USB2514-AEZG FOR 36 PIN, QFN LE AD-FREE ROHS COMPLIANT PACKAGE USB2514-HZH FOR 48 PIN, QFN LE AD-FREE ROHS COMPLIANT PACKAGE USB 2.0 High-S peed 4-Port Hub Controller Datasheet Revision 1.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 3 Revision 1.98 (1 1-19-07) DA T ASHEET T able of Content s Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 4 SMSC USB2514 DA T ASHEET List of Figures Figure 1.1 USB2514 36-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 5 Revision 1.98 (1 1-19-07) DA T ASHEET List of T ables Table 3.1 USB2514 Pin Desc riptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 6 SMSC USB2514 DA T ASHEET Chapter 1 Pin Configuration Figure 1.1 USB2514 36-Pin QFN Thermal Sl ug (must be connect ed to VSS) SMSC USB 251 4 (To p V iew Q F N -36 ) Indicates pi ns on the bottom of the devi ce .
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 7 Revision 1.98 (1 1-19-07) DA T ASHEET Figure 1.2 USB2514 48-Pin QFN Thermal Slug (must be conne cted to VS S) SMSC USB2514 (To p V iew Q FN-48 ) Indi cates pi ns on the bottom of the devi ce .
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 8 SMSC USB2514 DA T ASHEET Chapter 2 Block Diagram Figure 2.1 USB2514 Block Diagram To Upstream V BUS 3.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 9 Revision 1.98 (1 1-19-07) 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.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 10 SMSC USB2514 DA T ASHEET LED_A[4:1]_N/ PRT_SWP[4:1] n/a 13 23 25 37 I/O12 Port LED Indicators & Port Swa p strapping option Indicator LED for ports 1-4. Will be active low when LED support is enabled via EEPROM o r SMBus.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 1 1 Revision 1.98 (1 1-19-07) DA T ASHEET BOOST[1:0], If this strap is en abled by package and configuration settings (see T able 3.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 12 SMSC USB2514 DA T ASHEET RBIAS 35 47 I-R USB T ransceiver Bias A 12.0k Ω (+/- 1%) resistor is attached from gr ound to this pin to set the transceiver ’s internal bias settings.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 13 Revision 1.98 (1 1-19-07) DA T ASHEET CFG_SEL2 n/a 33 I Configuration Programming Se lect Note: This pin is not available in a ll p.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 14 SMSC USB2514 DA T ASHEET SUSP_IND/ LOCAL_PWR/ NON_REM0 28 39 I/O Active/Suspend status LED or Local-Power & Non Removable S trap Option Suspend Indicator: Indi cates USB state of the hub.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 15 Revision 1.98 (1 1-19-07) DA T ASHEET Notes: T able 3.2 SMBus or EEPROM Interface Behavior CFG_SEL2 CFG_SEL1 CFG_SEL0 SMBUS OR EEPR.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 16 SMSC USB2514 DA T ASHEET 3.2 Buffer T ype Descriptions T able 3.3 USB2514 Power , Ground, No Connect PACKAGE SYMBOL 36 QFN 48 QFN FUNCTION VDD18 14 17 VDD Core +1.8V core power .
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 17 Revision 1.98 (1 1-19-07) DA T ASHEET I/OSD12 Open drain...12mA sink with Schmitt trig ger , and must me et I2C-Bus S pecificatio n V ersion 2.1 requi rements. ICLKx XT AL clock input.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 18 SMSC USB2514 DA T ASHEET Chapter 4 Configuration Options 4.1 4-Port Hub SMSC’s USB 2.0 4-Port Hub is fully specification co mpliant to the Universal Serial Bus S peci fication Revision 2.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 19 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3 EEPROM Interface The SMSC Hub ca n be configu red via a 2-wire (I2 C) EEPROM (256x8). (Plea se see Ta b l e 3 . 1 for specific details on how to enable configuration via an I2C EEPROM).
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 20 SMSC USB2514 DA T ASHEET 4.3.1.1 Register 00h: V endor ID (LSB) 4.3.1.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 21 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.3 Register 02h: Product ID (LSB) 4.3.1.4 Register 03h: Product ID (MSB) 4.3.1.5 Register 04h: Device ID (LSB) 4.3.1.6 Register 05h: Device ID (MSB) BIT NUMBER BIT NAME DESCRIPTION 7:0 PID_LSB Least Significant Byte of the Product ID.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 22 SMSC USB2514 DA T ASHEET 4.3.1.7 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.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 23 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.8 Regis ter 07h: Configuratio n 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-port basis (individual).
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 24 SMSC USB2514 DA T ASHEET 4.3.1.9 Regis ter 08h: Configuratio n Dat a Byte 3 4.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 25 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.1 1 Register 0Ah: Port Disa ble For Self Powered Operation 4.3.1.12 Register 0Bh: Port Di sable For Bus Powered Op eration BIT NUMBER BIT NAME DESCRIPTION 7:0 PORT_DIS_SP Port Disable Self-Powered: Disabl es 1 or more contiguous ports.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 26 SMSC USB2514 DA T ASHEET 4.3.1.13 Register 0Ch: Max Powe r For Self Powered Opera tion 4.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 27 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.16 Register 0Fh: Hu b Controller Max Current For Bus Powered Operat ion 4.3.1.17 Register 10h: Power-On T ime 4.3.1.18 Register 1 1h: Language ID High 4.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 28 SMSC USB2514 DA T ASHEET 4.3.1.21 Register 14h: Product S tring Length 4.3.1.22 Register 15h: Serial S tring Length 4.3.1.23 Register 16h-53h: Manuf acturer S tring 4.3.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 29 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.25 Register 92h- CFh: Se rial String 4.3.1.26 Register F6h: Bo ost_Up BIT NUMBER BIT NAME DESCRIPTION 7:0 SER_STR Serial S tring, UNICODE UTF16LE per USB 2.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 30 SMSC USB2514 DA T ASHEET 4.3.1.27 Register F8h: Boost_4:0 BIT NUMBER BIT NAME DESCRIPTION 7:6 BOOST_IOUT_4 Upstream USB electrical signalin g drive stren gth Boost Bit for Downstream Port ‘4’.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 31 Revision 1.98 (1 1-19-07) DA T ASHEET 4.3.1.28 Register F Ah: Port Swap 4.3.1.29 Register FBh: Port Remap 12 BIT NUMBER BIT NAME DESCRIPTION 7:0 P RTSP Port Swap: Swaps the Upstream a nd Downstream USB DP and DM Pins for ease of board routing to devices and con nectors.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 32 SMSC USB2514 DA T ASHEET 4.3.1.30 Register FCh: Port Remap 34 7:0 PRTR12 Port remap register for ports 1 & 2.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 33 Revision 1.98 (1 1-19-07) DA T ASHEET 7:0 PRTR34 Port remap register for ports 3 & 4. When a hub is enumerated b y a USB Host Controller , the hub is only permitted to report how many ports it ha s; the hub is not permitted to select a numerical range or assignment.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 34 SMSC USB2514 DA T ASHEET 4.3.1.31 Register FFh: S tatus/Command 4.3.2 I2C EEPROM The I2C EEPROM interface implement s .
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 35 Revision 1.98 (1 1-19-07) DA T ASHEET 4.4 SMBus Slave Interface Instead of loading User-Defi ned Descriptor data from an external EEPROM, the SMSC Hub can be configured to receive a code load from an externa l processor via an SMBus interface.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 36 SMSC USB2514 DA T ASHEET Block Read A Block Read differs from a block write in that the repe ated start condition exists to satisfy the I2C specification’s requirement for a ch ange in the t ransfer direction .
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 37 Revision 1.98 (1 1-19-07) DA T ASHEET 4.4.7 Bus Reset Sequence The SMBus Slave Interface resets and returns to the idle state upon a ST ART field followed immediately by a STOP field.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 38 SMSC USB2514 DA T ASHEET Figure 4.3 LED Strapping Option 4.7 Reset There are tw o different resets that the Hub expe riences. One is a hardware reset (either from the internal POR reset circuit or via the RESET_N pin) and the second is a USB Bus Reset.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 39 Revision 1.98 (1 1-19-07) DA T ASHEET 4.7.2.1 RESET_N for Strappin g Option Configuration Figure 4.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 40 SMSC USB2514 DA T ASHEET 4.7.2.2 RESET_N for EEPROM Configuration Figure 4.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 41 Revision 1.98 (1 1-19-07) DA T ASHEET 4.7.2.3 RESET_N for SMBus Slave Configuration Figure 4.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 42 SMSC USB2514 DA T ASHEET 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.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 43 Revision 1.98 (1 1-19-07) DA T ASHEET Chapter 5 DC Parameters 5.1 Maximum Guaranteed Ratings Note: S tresse s above the specified parameters coul d cause perma nent damage to the device.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 44 SMSC USB2514 DA T ASHEET V oltage on XT AL1 -0.3 V DDA33 V V oltage on XT AL2 -0.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 45 Revision 1.98 (1 1-19-07) DA T ASHEET Note 5.1 Output leakage is measured w ith the current pins in hi gh impedance. Note 5.2 See USB 2.0 S pe cification for U SB DC el ectrical characteristi cs.
USB 2.0 High-S peed 4- Port Hub Controller Datasheet Revision 1.98 (1 1-19-07) 46 SMSC USB2514 DA T ASHEET CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD18 , V DDPLL = 1.
USB 2.0 High-S peed 4 -Port Hub Controller Datasheet SMSC USB2514 47 Revision 1.98 (1 1-19-07) 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 ± 10%, 24/48 MHz ± 350ppm, Jitter < 100 ps rms.
SMSC USB2514 48 Revision 1.98 (1 1-19-07) DA T ASHEET USB 2.0 High-S peed 4- Port Hub Controller Datasheet Chapter 7 Package Outlines Figure 7.1 36-Pin QFN, 6x6mm Body , 0.
SMSC USB2514 49 Revision 1.98 (1 1-19-07) DA T ASHEET USB 2.0 High-S peed 4- Port Hub Controller Datasheet Figure 7.2 48-Pin QFN, 7x7mm Body , 0.5mm Pitch.
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 USB2514 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 USB2514 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso SMSC USB2514 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul SMSC USB2514 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il SMSC USB2514, 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 USB2514.
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 USB2514. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo SMSC USB2514 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.
