Gebruiksaanwijzing /service van het product USB2512i van de fabrikant SMSC
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SMSC USB2512i DA T ASHEET Revision 1.92 (1 1-28-07) Datasheet PRODUCT FEA TURES USB2512i Industrial T emperature Rated USB 2.0 High-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.
ORDER NUMBER(S): USB2512i-AEZG FOR 36 PIN, QFN LE AD-FREE ROHS COMPLIANT PACKAGE Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 2 SMSC USB2512i DA T ASHEET 80 ARKA Y DRIVE, HAUPP AUGE, NY 1 1788 (631) 435-6 000, FA X (631) 273-3123 Copyright © 20 07 SMSC or its subsidiari es.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 3 Revision 1.92 (1 1-28-07) DA T ASHEET T able of Content s Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 4 SMSC USB2512i DA T ASHEET List of Figures Figure 1.1 USB2512i 36-Pin QFN (Embedded Footprint) . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 5 Revision 1.92 (1 1-28-07) DA T ASHEET List of T ables Table 3.1 USB2512i Pin Des criptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 6 SMSC USB2512i DA T ASHEET Chapter 1 Pin Configuration Figure 1.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 7 Revision 1.92 (1 1-28-07) DA T ASHEET Chapter 2 Block Diagram Figure 2.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 8 SMSC USB2512i 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 9 Revision 1.92 (1 1-28-07) DA T ASHEET SERIAL PORT INTERF ACE SDA/ SMBDA T A/ NON_REM1 22 I/OSD12 Serial Data / SMB Data & Port Non Removable S trap Option NON_REM1: Non removable port strap option.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 10 SMSC USB2512i 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 1 1 Revision 1.92 (1 1-28-07) DA T ASHEET 0 1 Configured as an SMBus slave for e xternal download of user-defined descriptors .
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 12 SMSC USB2512i DA T ASHEET 3.2 Buffer T ype Descriptions T able 3.4 USB2512i Buffer T ype Descriptions BUFFER DESCRIPTION I Input. IPD Input with internal weak pull -down resistor .
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 13 Revision 1.92 (1 1-28-07) 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 pecification Revision 2.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 14 SMSC USB2512i DA T ASHEET 4.2.1.1 Register 00h: V e ndor ID (LSB) 03h R/W PID MSB PIDM 25h.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 15 Revision 1.92 (1 1-28-07) 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 16 SMSC USB2512i 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 17 Revision 1.92 (1 1-28-07) DA T ASHEET 4.2.1.8 Register 07h: Configurat ion Data Byte 2 0 PORT_PWR Port.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 18 SMSC USB2512i DA T ASHEET 4.2.1.9 Register 08h: Configurat ion Data Byte 3 4.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 19 Revision 1.92 (1 1-28-07) DA T ASHEET 4.2.1.1 1 Register 0Ah: Port Disa ble For Self Powered Operation 4.2.1.12 Register 0Bh: Port Di sable For Bus Powered Operation 4.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 20 SMSC USB2512i DA T ASHEET 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 4.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 21 Revision 1.92 (1 1-28-07) DA T ASHEET 4.2.1.17 Register 10h: Power-On T ime 4.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 22 SMSC USB2512i DA T ASHEET 4.2.1.20 Register F Ah: Port Swap BIT NUMBER BIT NAME DESCRIPTION 7:0 PRTSP Port Swap: Swaps the Upstream a nd Downstream USB DP and DM Pins for ease of board routing to devices and con nectors.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 23 Revision 1.92 (1 1-28-07) 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 24 SMSC USB2512i DA T ASHEET 4.2.1.22 Register FFh: S tatus /Command 4.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 25 Revision 1.92 (1 1-28-07) 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).
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 26 SMSC USB2512i DA T ASHEET Figure 4.1 Block Write 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 27 Revision 1.92 (1 1-28-07) 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 28 SMSC USB2512i 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 29 Revision 1.92 (1 1-28-07) 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 30 SMSC USB2512i 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 31 Revision 1.92 (1 1-28-07) 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.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 32 SMSC USB2512i DA T ASHEET Chapter 5 DC Parameters 5.1 Maximum Guaranteed Ratings Note: S tresses above th e specified parameters coul d cause permanent damag e to the device.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 33 Revision 1.92 (1 1-28-07) DA T ASHEET V oltage on XT AL1 -0.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 34 SMSC USB2512i DA T ASHEET Notes: 1. Output leakage i s measured with the current pin s in high impedance. 2. See USB 2.0 S pecification for U SB DC electrical characteristics.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 35 Revision 1.92 (1 1-28-07) DA T ASHEET CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD18 , V DDPLL = 1.
Industrial T emperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet Revision 1.92 (1 1-28-07) 36 SMSC USB2512i 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, Jitte r < 100 ps rms.
SMSC USB2512i 37 Revision 1.92 (1 1-28-07) DA T ASHEET Chapter 7 Package Outline Figure 7.1 36-Pin QFN, 6x6mm Body , 0.5mm Pitch.
Een belangrijk punt na aankoop van elk apparaat SMSC USB2512i (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen SMSC USB2512i heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens SMSC USB2512i vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding SMSC USB2512i leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over SMSC USB2512i krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van SMSC USB2512i bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de SMSC USB2512i kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met SMSC USB2512i . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.