Manuale d’uso / di manutenzione del prodotto USB2250i del fabbricante SMSC
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SMSC USB2250/50i/51/51i DA T ASHEET Revision 1.1 (05-29-08) Datasheet PRODUCT FEA TURES USB2250/50i/51/51i Ultra Fast USB 2.0 Multi-Slot Flash Media Controller General Descripti on The SMSC USB2250/50i/51/51i is a USB 2.
ORDER NUMBER: USB2250/50 i/51/51i-NU -XX for 128-pin , VTQFP Lead -Free RoHS Co mpliant Pac kage “XX” in the order number indicat es the internal ROM firmware re vision level. Please cont act your SMSC sales repr esent ative for more informa tion.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 3 Revision 1.1 (05-29-08) DA T ASHEET T able of Content s Chapter 1 Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 4 SMSC USB2250/50i/51/51i DA T ASHEET List of Figures Figure 2.1 USB2250/50i /51/51i Block Dia gram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 5 Revision 1.1 (05-29-08) DA T ASHEET List of T ables Table 0.1 USB2250/50i/51/51iComparison of Fea tures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 6 SMSC USB2250/50i/51/51i DA T ASHEET Chapter 1 Acronyms CF: Compact Flash CFC: Compact Flash Controller EEPROM: .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 7 Revision 1.1 (05-29-08) DA T ASHEET Chapter 2 Block Diagram Figure 2.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 8 SMSC USB2250/50i/51/51i DA T ASHEET Chapter 3 Pin T able 3.1 128-Pin Package T able 3.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 9 Revision 1.1 (05-29-08) DA T ASHEET MEMOR Y/IO INTERF ACE (28 PINS) MA0/CLK_SEL0 MA1/CLK_SEL1 MA2 MA3 MA4 MA5 M.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 10 SMSC USB2250/50i/51/51i DA T ASHEET Chapter 4 Pin Configuration Figure 4.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 1 1 Revision 1.1 (0 5-29-08) DA T ASHEET Chapter 5 Pin Descriptions This section provides a detailed description of each signal. The signals are arranged in functional groups according to their associated interface.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 12 SMSC USB2250/50i/51/51i DA T ASHEET CF Data 7-0 / GPIO CF_D[7:0] / GPIO[23:16] 69 67 63 61 59 88 86 85 I/O12PD CF_D[7:0]: The bi-directiona l data signals CF_D7 - CF_D0 in True IDE mode data transfer .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 13 Revision 1.1 (05-29-08) DA T ASHEET SM Address St r o b e SM_ALE 52 O12PD This pin i s an active high Address Latch Enable signal for the SM device. This pin has a weak pull-do wn resistor that is permanently enabled.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 14 SMSC USB2250/50i/51/51i DA T ASHEET SM Busy or Data Ready SM_nB/R 56 IPU This pin is conne cted to the BSY/RDY pin of the SM device.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 15 Revision 1.1 (05-29-08) DA T ASHEET MS System Data In/Out MS_D0 / MS_SDIO 94 I/O12PD MS_D0: This pin is one of the bi-directional data signals for the MS device.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 16 SMSC USB2250/50i/51/51i DA T ASHEET Crystal Input/External Clock Input XT AL1 (CLKIN) 124 ICLKx 24MHz Cryst al or externa l clock input.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 17 Revision 1.1 (05-29-08) DA T ASHEET Memory Address Bus MA1[1:0] / CLK_ SEL1[1:0] 25 27 O12 MA[1:0]: These signals address memory locations within the external memory .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 18 SMSC USB2250/50i/51/51i DA T ASHEET General Purpose I/O GPIO4 (SCL/xD_ID) 1 18 I/O12 GPIO: This pin may be used either as input, edge sensitive interr upt input, or output.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 19 Revision 1.1 (05-29-08) DA T ASHEET Notes: 1. Hot-insertion capable card connectors are requir ed for all flash medi a. It is required for the SD connector to have a Write Protect switch.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 20 SMSC USB2250/50i/51/51i DA T ASHEET 5.2 Buffer T ype Descriptions T able 5.2 USB2250/50i/51/51i Buffer T ype Description s BUFFER DESCRIPTION I Input. IPU Input with internal weak p ull-up resistor .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 21 Revision 1.1 (05-29-08) DA T ASHEET Chapter 6 Pin Reset S t ate T able Figure 6.
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 22 SMSC USB2250/50i/51/51i DA T ASHEET 6.1 128-Pin Reset S t ates Figure 6.
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 23 SMSC USB2250/50i/51/51i DA T ASHEET 73 CF_nIOW CF z -- -- CF hw -- -- 74 CF _nIRQ C F z -- -- CF z pd yes 79 .
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 24 SMSC USB2250/50i/51/51i DA T ASHEET 52 SM_ALE SM zp d - - SM hw pd -- 53 SM_CLE SM zp d - - SM hw pd -- 47 SM.
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 25 SMSC USB2250/50i/51/51i DA T ASHEET 10 SD_D1 SD z- - - - SD hw pu yes 23 SD_D2 SD z- - - - SD hw pu yes 22 SD.
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 26 SMSC USB2250/50i/51/51i DA T ASHEET 24 MA10 MA 0- - - - MA hw -- -- 11 3 M A 11 M A 0- - - - MA hw -- -- 107 .
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 27 SMSC USB2250/50i/51/51i DA T ASHEET 16 GP IO1 1 /CARD_PWR3 GPIO z- - - - GPIO (fw) (fw) (fw) PWR VDD -- -- 10.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 28 SMSC USB2250/50i/51/51i DA T ASHEET Chapter 7 DC Parameters 7.1 Maximum Guaranteed Ratings Note 7.1 S tresses above the specified parameters may cause permanent damage to the device.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 29 Revision 1.1 (05-29-08) DA T ASHEET Figure 7.1 Supply Rise T ime Mo del Note 7.3 When powering the device, the ma ximum power supply ramp time should be set at a rate faster than 400 μ s.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 30 SMSC USB2250/50i/51/51i DA T ASHEET 7.3 DC Electrical Characteristics P ARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS I, IPU, IPD T ype Input Buffer Low Input Leve l High Input Level Pull Down Pull Up V ILI V IHI PD PU 2.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 31 Revision 1.1 (05-29-08) DA T ASHEET Note 7.5 Output leakage is measured w ith the current pins in hi gh impedance. Note 7.6 See The USB 2.0 S pecification, Chapter 7 , for USB DC electri cal characteristi cs Note 7.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet Revision 1.1 (05-29-08) 32 SMSC USB2250/50i/51/51i DA T ASHEET Note 7.9 The assignment of each Integrated Card Po wer FET to a designated Card Con nector is controlled by both firmware and the specific board impl ementat ion.
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 33 Revision 1.1 (05-29-08) DA T ASHEET Chapter 8 AC S pecifications 8.1 Oscillator/Clock Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ± 100ppm. External Clock: 50% Duty cycl e ± 10%, 24/48 MHz ± 100ppm, Jitter < 1 00ps rms.
Ultra Fast USB 2.0 Multi-Slot Flash Media Contr oller Datasheet Revision 1.1 (05-29-08) 34 SMSC USB2250/50i/51/51i DA T ASHEET Chapter 9 Package Outline Figure 9.1 USB2250/50i/51/ 51i 128-Pin VT QFP , 14 x14x1.0mm Body , 2.0 mm Pitch - SE E S P EC FR O N T P A GE FOR R E V I SION HIS T OR Y -- N OTE S: 1 .
Ultra Fast USB 2.0 Multi-Slot Flash Media Controller Datasheet SMSC USB2250/50i/51/51i 35 Revision 1.1 (05-29-08) DA T ASHEET Chapter 10 GPIO Usage T able 10.
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 USB2250i 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 USB2250i - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso SMSC USB2250i imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul SMSC USB2250i ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il SMSC USB2250i, 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 USB2250i.
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 USB2250i. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo SMSC USB2250i 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.