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SMSC USB2512A manual

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Table of contents for the manual

  • Page 1

    SMSC USB2512A DA T ASHEET Revision 1.96 (07-1 1- 08) Datasheet PRODUCT FEA TURES USB2512A 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-port hub is fully comp lian t wit[...]

  • Page 2

    ORDER NUMBERS: USB2512A-AEZG FOR 36 PIN, QFN LEAD-FREE ROH S COMPLIANT PACKAGE USB 2.0 Hi-S peed 2-Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 2 SMSC USB2512A 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 ri ghts reserved. Circuit diagrams and o[...]

  • Page 3

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 3 Revision 1.96 (07-1 1-08) DA T ASHEET T able of Content s Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Chapter 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 4 SMSC USB2512A DA T ASHEET List of Figures Figure 1.1 USB2512A 36-Pin QFN (Embedded Footprint) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2.1 USB2512A Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 5

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 5 Revision 1.96 (07-1 1-08) DA T ASHEET List of T ables Table 3.1 USB2512A Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Table 3.2 SMBus or EEPROM Interfac e Behavior . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 6

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 6 SMSC USB2512A DA T ASHEET Chapter 1 Pin Configuration Figure 1.1 USB2512A 36-Pin QFN (Emb edded Footprint) Thermal Slug (must be connected to VSS) SMSC USB2512A Embedded Footprint (Top View Q FN-3 6) Indicates pins on the bottom of the devi ce. 26 VDD33 25 RESET_N 24 HS_[...]

  • Page 7

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 7 Revision 1.96 (07-1 1-08) DA T ASHEET Chapter 2 Block Diagram Figure 2.1 USB2512A Block Diagram To U pst ream V BUS 3. 3V U pst ream PHY Up s t r ea 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 OM o r SM B us M aster Ro ut i [...]

  • Page 8

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 8 SMSC USB2512A 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 in the sign al name indicates [...]

  • Page 9

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 9 Revision 1.96 (07-1 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 Serial Data / SMB Data & Port[...]

  • Page 10

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 10 SMSC USB2512A 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 external circuitry other than t[...]

  • Page 11

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 1 1 Revision 1.96 (07-1 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 download of user-defined descript[...]

  • Page 12

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 12 SMSC USB2512A DA T ASHEET 3.2 Buffer T ype Descriptions T able 3.4 USB2512A Buffer T y pe Des criptions BUFFER DESCRIPTION I Input. IPD Input with internal weak pull -down resistor . IPU Input with internal weak pull-u p resistor . IS Input with Schmitt trigger . O12 Ou[...]

  • Page 13

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 13 Revision 1.96 (07-1 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 peci fication Revision 2.0 April 27,2000 (12/7/2000 and 5/28/ 2002 Errata). Please reference Chapter 10 ([...]

  • Page 14

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 14 SMSC USB2512A 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 1 0h 0x00 08h R/W Config Data Byte 3 CFG[...]

  • Page 15

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 15 Revision 1.96 (07-1 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 DESCRIPTION 7:0 VID_MSB Most S[...]

  • Page 16

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 16 SMSC USB2512A 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 upstream bus power) or Bus-Powered ([...]

  • Page 17

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 17 Revision 1.96 (07-1 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-port basis (individual). The abi[...]

  • Page 18

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 18 SMSC USB2512A 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 ena ble: Selects the method used by the hub to assign port number[...]

  • Page 19

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 19 Revision 1.96 (07-1 1-08) 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 Op eration BIT NUMBER BIT NAME DESCRIPTION 7:0 PORT_DIS_SP Port Disable Self-Powered: Disables 1 or more contiguous p orts. ?[...]

  • Page 20

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 20 SMSC USB2512A DA T ASHEET 4.2.1.13 Register 0Ch: Max Powe r For Self Powered Opera tion 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 NAME DESCRIPTION 7:0 MAX_PWR_S[...]

  • Page 21

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 21 Revision 1.96 (07-1 1-08) DA T ASHEET 4.2.1.16 Register 0Fh: Hu b Controller Max Current For Bus Powered Operatio n 4.2.1.17 Register 10h: Power-On T ime 4.2.1.18 Register F6h: Bo ost_Up 4.2.1.19 Register F8h: Boost_2:0 BIT NUMBER BIT NAME DESCRIPTION 7:0 HC_MAX_C_BP Hub Controller[...]

  • Page 22

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 22 SMSC USB2512A DA T ASHEET 4.2.1.20 Register F Ah: Port Swap 3:2 BOOST_IOUT_2 USB el ectrical signaling drive strength Boost Bit for Downstream Port ‘2’. ‘00’ = Normal electrical drive streng th = No boost ‘01’ = Elevated electrical drive st rength = Low (a p[...]

  • Page 23

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 23 Revision 1.96 (07-1 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 many ports it ha s; the hub is[...]

  • Page 24

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 24 SMSC USB2512A DA T ASHEET 4.2.1.22 Register FFh: S tatus/Command 4.2.2 I 2 C EEPROM The I 2 C EEPROM interface implements a subset of the I 2 C Master S pecification (Plea se refer to the Philips Semiconductor S tandard I 2 C-Bus Specification for details on I 2 C bus p[...]

  • Page 25

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 25 Revision 1.96 (07-1 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 Slave Interface Instead of loadin[...]

  • Page 26

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 26 SMSC USB2512A 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 . Figure 4.2 Block Rea d 4.3.2 I[...]

  • Page 27

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 27 Revision 1.96 (07-1 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 T iming S pecification. See [...]

  • Page 28

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 28 SMSC USB2512A 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 associated external circuitry) consum[...]

  • Page 29

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 29 Revision 1.96 (07-1 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 levels manda ted in Chap ter 5,[...]

  • Page 30

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 30 SMSC USB2512A 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 consume more than 100mA fr om t[...]

  • Page 31

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 31 Revision 1.96 (07-1 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 configures the Hub and the Hu[...]

  • Page 32

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 32 SMSC USB2512A 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 damag e to the device. This is a stress rating only and fun ctional operation of the device at any conditio n above [...]

  • Page 33

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 33 Revision 1.96 (07-1 1-08) DA T ASHEET 5.2 Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENT S Operating T e mperature T A 0 70 °C Ambient temperature in still a ir . 1.8V supply voltage V DDA18PLL V DD18 1.62 1 .98 V 3.3V supply voltage V DDA33 V DDA33PLL V DD33 V DD33CR[...]

  • Page 34

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 34 SMSC USB2512A 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 V ILCK V IHCK I IL 1.4 -10 0.[...]

  • Page 35

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet SMSC USB2512A 35 Revision 1.96 (07-1 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 acit ance 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 (and pins unde r test tied to[...]

  • Page 36

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 36 SMSC USB2512A 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 ypical Crystal Circuit Note: [...]

  • Page 37

    USB 2.0 Hi-S peed 2- Port Hub Controller Datasheet Revision 1.96 (07-1 1-08) 37 SMSC USB2512A DA T ASHEET Chapter 7 Package Outline Figure 7.1 36-Pin QFN, 6x6mm Body , 0.5mm Pitch[...]