Benutzeranleitung / Produktwartung USB2502 des Produzenten SMSC
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SMSC USB2502 DA T ASHEET Revision 2.3 (08-27-07) Datasheet PRODUCT FEA TURES USB2502 2-Port USB 2.0 Hub Controller Integrated USB 2.0 Compatible 2-Port Hub — High-S peed (480Mbits/s), Full-S peed (12Mbits/s) and Low-S peed (1.
ORDER NUMBERS: USB2502-AEZG FOR 36 PIN LEAD-FREE ROHS COMP LIANT QFN PACKAGE; USB 2502-HT FOR 48 PIN LEAD- FREE ROHS COMPLIANT TQFP PACKAGE 2-Port USB 2.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 3 Revision 2.3 (08-27-07) DA T ASHEET T able of Content s Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 OEM Selectable Features .
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 4 SMSC USB2502 DA T ASHEET List of T ables Table 2. 1 2-Port Pin Table for 36-QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 2.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 5 Revision 2.3 (08-27-07) DA T ASHEET List of Figures Figure 3.1 2-Port 36-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 6 SMSC USB2502 DA T ASHEET Chapter 1 General Description The SMSC 2-Port Hub is fully complian t with th e USB 2.0 S pecification and will attach to a USB host as a Full-S peed Hub or as a Full-/High-S peed Hub.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 7 Revision 2.3 (08-27-07) DA T ASHEET Chapter 2 Pin T able 2-Port T able 2.1 2-Port Pin T able for 36-QFN UPSTREAM USB 2.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 8 SMSC USB2502 DA T ASHEET T abl e 2.2 2-Port Pin T able for 48-TQFP UPSTREAM USB 2.0 INTERF ACE (3 PINS) USBDP0 USBDN0 VBUS_DET 2-PORT USB 2.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 9 Revision 2.3 (08-27-07) DA T ASHEET Chapter 3 Pin Configuration 2-Port Hub Figure 3.1 2-Port 36-Pin QFN Thermal Slug (must be connected to VSS) SMSC USB2502 (Top View QFN-36) Indicates pins on the bottom of the device.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 10 SMSC USB2502 DA T ASHEET Figure 3.2 2-Port 48-Pin TQ FP 9''&5 966 ;7 $/ ;7 $/&/.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 1 1 Revision 2.3 (08-27-07) DA T ASHEET Chapter 4 2-Port Hub Block Diagram Figure 4.1 2-Port Bloc k Diagram T able 4.1 2-Port Hub Pin Descript ions NAME SYMBOL T YPE FUNCTION UPSTREAM USB 2.0 INTE RF ACE USB Bus Data USBDN0 USBDP0 IO-U These pins connect to the upstream USB bus data signals.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 12 SMSC USB2502 DA T ASHEET 2-PORT USB 2.0 HUB INTERF ACE High-S peed USB Data USBDN[2:1] USBDP[2:1] IO-U These pins connect to the downst ream USB peripheral devices attached to the Hub’s ports.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 13 Revision 2.3 (08-27-07) DA T ASHEET SERIAL PORT INTERF ACE Serial Data/SMB Data SDA/SMBDA T A IOSD12 (Serial Data)/(SMB Dat a) signal. Serial Clock/SMB Clock & Config Select 0 SCL/SMBCLK/ CFG_SEL0 IOSD12 (Serial Clock)/(SMB Clock) sig nal.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 14 SMSC USB2502 DA T ASHEET Analog T est & Internal 1.8V voltage regulator enable A TEST/ REG_EN AIO This signal is used for testing the analog section of the chip, and to ena ble or disable t he internal 1.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 15 Revision 2.3 (08-27-07) DA T ASHEET IOSD12 Open drain….12mA sink with Sch mitt t rigge r , an d must meet I 2C-Bus Specification V ersion 2.1 requirements. ICLKx XT AL Clock Input OCLKx XT AL Clock Output I-R RBIAS IO-U Defined in USB S pecification.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 16 SMSC USB2502 DA T ASHEET Chapter 5 Functional Block Description 5.1 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.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 17 Revision 2.3 (08-27-07) DA T ASHEET 5.1.1.5 High-Speed Disab le Allows an OEM to force the Hub to configure as a Full-S peed device only (i.e. High-S peed not available). This field is set by the OEM using either the SMBus o r EEPROM interface opt ions.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 18 SMSC USB2502 DA T ASHEET When Dynamic Power switching is enab led, the Hub detects the availability of a local power so urce by monitoring the external SELF_PWR pin.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 19 Revision 2.3 (08-27-07) DA T ASHEET 5.2 EEPROM Interface The SMSC Hub can be co nfigured via a 2-wire (I2C) EEPROM. (Please see T able 4.1, "7-Port Hu b Pin Descriptions" for specific details on how to enable the I2C EEPROM option).
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 20 SMSC USB2502 DA T ASHEET 5.2.3.1 EEPROM Offset 1:0(h) - V endor ID 5.2.3.2 EEPROM Offset 3:2(h) - Product ID Config Data Byte 1 6 1 88 0C Configuration data byte #1 f or Hub options. Config Data Byte 2 7 1 90 90 Configuration data byte #2 f or Hub options.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 21 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.3 EEPROM Offset 5:4(h) - Device ID 5.2.3.4 EEPROM Offset 6(h) - CONFIG_BYTE_1 5.2.3.5 EEPROM Offset 7(h) - CONFIG_BYTE_2 BIT NUMBER BIT NAME DESCRIPTION 15:8 DID_MSB Most Significant Byte of the De vice ID.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 22 SMSC USB2502 DA T ASHEET 5.2.3.6 EEPROM Offset 8(h) - Non-Removable Device 5.2.3.7 EEPROM Offset 9(h) - Port Disable For Self Powered Operation 5.2.3.8 EEPROM Offs et A(h) - Port Disable For Bus Powered Operation 5:4 OC_TIMER Ove rCurrent T imer: Over Current T imer de lay .
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 23 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.9 EEPROM Offs et B(h) - Max Power For Self Powered Operation 5.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 24 SMSC USB2502 DA T ASHEET 5.2.3.12 EEPROM Offs et E(h) - Hub Controller Max Current For Bus Powered Operation 5.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 25 Revision 2.3 (08-27-07) DA T ASHEET 5.3.1.1 Byte Protocols When using the Hub SMBus Interface for byte transfers, a write will always consis t of the SMBus Interface Slave Address byt e, followed by the I nternal Address Register b yte, then the d ata byte.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 26 SMSC USB2502 DA T ASHEET 5.3.4 S lave Device T ime-Out According to the SMBus S pecification, V1.0 devices in a transfer ca n abort the transf er in progress and release the bus when any single clock low interval exceeds 25ms (T TIMEOUT , MIN ).
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 27 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.1 Register 00h: S t atus/Command (Reset = 0x00) 5.3.9.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 28 SMSC USB2502 DA T ASHEET 5.3.9.3 Register 02h: V endor ID (MSB) (Reset = 0x00 ) 5.3.9.4 Register 03h: Product ID (LSB) (Reset = 0x00) 5.3.9.5 Register 04h: Product ID (MSB) (Reset = 0x00) 5.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 29 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.9 Register 08h: Co nfiguration Dat a Byte 2 (Reset = 0x00 ) 5 HS_DISABLE High S peed Disa ble: Disables the capability to attach as either a High/Full- speed device, and force s attachment as Full-speed only i.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 30 SMSC USB2502 DA T ASHEET 5.3.9.10 Register 09h: Non- Removable Device (Reset = 0x00) 5.3.9.1 1 Register 0Ah: Port Disable For Self Powered Operation (Rese t = 0x00) 5.3.9.12 Register 0Bh: Port Disa ble For Bus Powered Operation (Reset = 0x00) 5.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 31 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.14 Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x00 ) 5.3.9.15 Register 0Eh: Hub Contr oller Max Curr ent For Self Powered Operation (Reset = 0x 00) 5.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 32 SMSC USB2502 DA T ASHEET 5.3.9.19 Reserved Registers Unless otherwise inst ructed, only a ‘0’ may be writ ten to all reserved reg isters or bits. 5.4 Default Configuration Option: The SMSC Hub can be config ured via its internal defa ult conf iguration.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 33 Revision 2.3 (08-27-07) DA T ASHEET 5.6.1 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.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 34 SMSC USB2502 DA T ASHEET Notes: When in Bus-Powered mode, the Hub and its associated circuitry mu st not consume more than 100mA from the upstream USB power source d uring t1+t5.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 35 Revision 2.3 (08-27-07) DA T ASHEET All Power Supplies mu st have reached th e operating level s mandated in Secti on Chapter 7, "DC Parameters" , prior to (or coincident wi th) the assertion of RESET_N.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 36 SMSC USB2502 DA T ASHEET 5.6.2 U SB Bus Reset In response to the upstream port signaling a reset to the Hub, the Hub does the fol lowing: Note: The Hub does no t propagate the upstream USB reset to dow nstream devices.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 37 Revision 2.3 (08-27-07) DA T ASHEET Chapter 6 XNOR T est XNOR continuity tests all signal pin s on the Hub (every pin except for NC, XT AL1/CLKIN, XT AL2, A TEST/REG_EN, RBIAS, TEST, Power , and Gro und).
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 38 SMSC USB2502 DA T ASHEET Chapter 7 DC Parameters 7.1 Maximum Guaranteed Ratings Note: S tresses above the specif ied parameters could cause permanent damage to the device.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 39 Revision 2.3 (08-27-07) DA T ASHEET 7.2 Recommended Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENTS Operating T e mperature T A 07 0 ° C 1.8V supply voltage V DDA18PLL V DD18 1.62 1.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 40 SMSC USB2502 DA T ASHEET ICLK Input Buffe r Low Input Level High Input Leve l Input Leakage Hysteresis V ILCK V IHCK I IL V HYSC 2.
2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 41 Revision 2.3 (08-27-07) DA T ASHEET Notes: 1. Output leakage i s measured with t he current pins in hi gh impedance. 2. See USB 2.0 Specification for USB DC electrical characteristics. 3. RBIAS is a 3.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 42 SMSC USB2502 DA T ASHEET Chapter 8 AC S pecifications 8.1 Oscillator/Clock Crystal: Parallel Resonant, Funda mental Mode, 24 MHz ± 100ppm. External Clock: 50% Duty cycle ± 1 0 % , 2 4 M H z ± 100ppm, Jitter < 100 ps rm s.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 43 SMSC USB2502 DA T ASHEET Chapter 9 Package Outlines Figure 9.1 36 Pin QFN Pac kage - SEE SP E C F R O N T P A G E F O R REVISION HISTOR Y -- DECIM AL X.
2-Port USB 2.0 Hub Controller Datasheet Revision 2.3 (08-27-07) 44 SMSC USB2502 DA T ASHEET Figure 9.2 48 Pin TQFP Package Ou tl ine (7x7x1.4 mm body , 2mm Footprint) Notes: 1. Controlling Unit: millimeter . 2. T ole rance on the true position of the l eads is ± 0.
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