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SMSC USB2507 User's Manual

1. 26 5 4 Default Configuration Option 32 5 5 Default Strapping Options 32 AA nee 33 5 6 1 External Hardware RESET N 33 5 6 2 USB Bus Reset 2 teens 36 Chapter o XNOR Test beer ENNER RARA AAA 38 Chapter 7 DC Parameters vocera rr AAA 39 74 Maximum Guaranteed Ratings 39 7 2 Recommended Operating Conditions 40 Chapter 8 AC Specifications 43 8 1 Oscillator Clock Ai pika ba e add ei Bla beat EU beads 43 8 1 1 SMBus Interface 43 8 1 2 I2C EEPROM ii dew a esa RTE a KANA eee DAG 43 8 1 3 USB 2 Di pawa oe GD GD it KN ante eee ew eee PAA NAN APA gies 43 Chapter 9 Package Outline 44 SMSC USB2507 Revision 2 3 08 27 07 3 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet List of Figures Figure 3 1 7 Port 80 Pin TQFP o 8 Figure 4 1 Port Block Diagrams es srias iwa ae aa ea A A NALANG 9 Figure 5 1 LED Strapping Option 33 Figure 5 2 Reset N Timing for Default Strap OptionMode 34 Figure 5 3 Rese
2. 1 1 OEM Selectable Features 6 Chapter 2 Pin Table 7 Port 7 Chapter 3 Pin Configuration 7 Port Hub 8 Chapter4 7 Port Hub Block Diagram 9 Chapter 5 Functional Block Description 15 bid i T POrtikUB esta eek een ted as A A ied KARGA aa 15 5 1 1 Hub Configuration Options 15 5 1 2 Nues Detect sde RI AA AA ee ene 18 5 2 EEPROM Intertace aaau auaa aae 18 5 2 1 I2C EEPROM 2 Ae as par a a a Nat tale LALA A a 18 5 2 2 In Circuit EEPROM Programming 19 5 2 3 EEPROM DATA wis an AE cides AA B a AE AN AR NG 19 5 3 SMBus Slave Interface 24 5 3 1 Bus Protocols d e A A ted E erg EE A 24 5 3 2 Invalid Protocol Response Behavior 25 5 3 3 General Call Address Response 25 5 3 4 Slave Device Time Out 26 5 3 5 Stretching the SCLK Signal 26 5 3 6 SMBUS TIMING EE 26 5 3 7 BusResetSeguence 26 5 3 8 SMBus Alert Response Address 26 5 3 9 Internal SMBus Memory Register Set
3. HEX DESCRIPTION VID 1 0 2 0424 0424 Vendor ID assigned by USB IF PID 3 2 2 2507 2507 Product ID assigned by Manufacturer DID 5 4 2 0000 0000 Device ID assigned by Manufacturer Config Data 6 1 98 1C Configuration data byte 1 for Hub options Byte 1 Config Data 7 1 10 90 Configuration data byte 2 for Hub options Byte 2 Non 8 1 00 00 Defines the ports that contain attached Removable devices this is used only when Hub is part of Device a compound device Port Disable 9 1 00 00 Selects the ports that will be permanently Self Powered disabled Port Disable A 1 00 00 Selects the ports that will be permanently Bus Powered disabled Max Power B 1 01 01 Max Current for this configuration expressed Self Powered in 2MA units Max Power C 1 64 64 Max Current for this configuration expressed Bus Powered in 2MA units Hub Controller D 1 01 01 Max Current expressed in 2mA units Max Current Self Powered SMSC USB2507 19 DATASHEET Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Table 5 1 User Defined Descriptor Data continued Datasheet DEFAULT DEFAULT BYTE CFG CFG MSB SIZE SELF BUS FIELD LSB BYTES HEX HEX DESCRIPTION Hub Controller E 1 64 64 Max Current expressed in 2mA units Max Current Bus Powered Power On F 32 32 Time until power is stable Time 5 2 3 1
4. Individual port by port switching 5 3 9 9 Register 08h Configuration Data Byte 2 Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 DYNAMIC Dynamic Power Enable Controls the ability for the Hub to transition to Bus Powered operation if the local power source is removed can revert back to Self Power if local power source is restored 0 No Dynamic auto switching 1 Dynamic Auto switching capable 6 Reserved Reserved 5 4 OC_TIMER OverCurrent Timer Over Current Timer delay 00 0 1ms 01 2ms 10 4ms 11 6ms 3 COMPOUND Compound Device Designates if Hub is part of a compound device 0 No 1 Yes Hub is part of a compound device 2 0 Reserved Reserved SMSC USB2507 Revision 2 3 08 27 07 29 DATASHEET E gt smsc 5 3 9 10 Integrated USB 2 0 Compatible 7 Port Hub Datasheet Register 09h Non Removable Device Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 NR DEVICE Non Removable Device Indicates which port s include non removable devic es 0 port is removable 1 port is non removable Bit 7 1 Port 7 non removable Bit 6 1 Port 6 non removable Bit 5 1 Port 5 non removable Bit 4 1 Port 4 non removable Bit 3 1 Port 3 non removable Bit 2 1 Port 2 non removable Bit 1 1 Port 1 non removable Bit O is Reserved always 0 5 3 9 11 BIT NUMBER BIT NAME Register OAh Port Disable For Se
5. USBDNO IO U These pins connect to the upstream USB bus data signals USBDPO Detect Upstream VBUS DET 1 012 Detects state of Upstream VBUS power The SMSC Hub monitors VBUS_DET to determine when to assert the internal D pull up resistor signalling a connect event When designing a detachable hub this pin must be connected to the VBUS power pin of the USB port that is upstream of the hub Use of a weak pull down resistor is recommended For self powered applications with a permanently attached host this pin must be pulled up to either 3 3V or 5 0V typically VDD33 Revision 2 3 08 27 07 E gt smsc Table 4 1 7 Port Hub Pin Descriptions continued Integrated USB 2 0 Compatible 7 Port Hub Datasheet NAME SYMBOL TYPE FUNCTION 7 PORT USB 2 0 HUB INTERFACE High Speed USB USBDN 7 1 IO U These pins connect to the downstream USB peripheral Data USBDP 7 1 devices attached to the Hub s ports USB Power PRTPWR 7 1 012 Enables power to USB peripheral devices downstream Enable The active signal level of the PRTPWR7 1 pins is determined by the Power Polarity Strapping function of the PRTPWR POL pin Ports 7 5 Green GR 7 5 1 012 Green indicator LED s for ports 7 5 LED is active low LED Port 4 3 Green GRI4 3 1 012 Green indicator LED for ports 4 and 3 Will be active low LED PRT_DIS 1 0 when LED support is enabled via EEPROM or SMBus amp Port Disable If the hub is configured by the
6. a USB attach event to an upstream device Note SMBus Slave interface will completely power down after the ACK has completed Note This bit is write once and is only cleared by assertion of the external RESET_N pin 5 3 9 2 Register 01h Vendor ID LSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 VID_LSB Least Significant Byte of the Vendor ID SMSC USB2507 Revision 2 3 08 27 07 27 DATASHEET E gt smsc Integrated USB 2 0 Compatible 7 Port Hub Datasheet 5 3 9 3 Register 02h Vendor ID MSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 VID MSB Most Significant Byte of the Vendor ID 5 3 9 4 Register 03h Product ID LSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 PID LSB Least Significant Byte of the Product ID 5 3 9 5 Register 04h Product ID MSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 PID_MSB Most Significant Byte of the Product ID 5 3 9 6 Register 05h Device ID LSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 DID_LSB Least Significant Byte of the Device ID 5 3 9 7 Register 06h Device ID MSB Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 DID_MSB Most Significant Byte of the Device ID 5 3 9 8 Register 07h CONFIG_BYTE_1 Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 SELF BUS PWR Self or Bus Power Selects between Self and Bus Powe
7. consumption from VBUS of all associated circuitry on the board This value also includes the power consumption of a permanently attached peripheral if the hub is configured as a compound device and the embedded peripheral reports OmA in its descriptors Note The USB 2 0 Specification does not permit this value to exceed 100mA A value of 50 decimal indicates 100mA 5 3 9 14 Register ODh Max Power For Bus Powered Operation Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 MAX_PWR_BP Max Power Bus_Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a bus powered hub This value includes the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the board This value also includes the power consumption of a permanently attached peripheral if the hub is configured as a compound device and the embedded peripheral reports OmA in its descriptors A value of 50 decimal indicates 100mA 5 3 9 15 Register OEh Hub Controller Max Current For Self Powered Operation Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 HC_MAX_C_SP Hub Controller Max Current Self Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a self powered hub This value includes the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the b
8. internal default configuration strapping option these pins will be sampled at RESET_N negation to pping option determine if ports 7 5 will be permanently disabled Also the active state of the LED s will be determined as follows PRT DIS 1 0 00 All ports are enabled GRA is active high GR3 is active high PRT DIS 1 0 01 Port 7 is disabled GRA is active high GR3 is active low PRT DIS 1 0 10 Ports 7 8 6 are disabled GRA is active low GR3 is active high PRT DIS 1 0 11 Ports 7 6 amp 5 are disabled GRA is active low GR3 is active low Port 2 1 Green GR 2 11 11012 Green indicator LED for ports 2 and 1 Will be active low LED NON REM 1 0 when LED support is enabled via EEPROM or SMBus 8 Port Non If the hub is configured by the internal default configuration Removable these pins will be sampled at RESET_N negation to t ti determine if ports 3 1 contain permanently attached non strapping option removable devices Also the active state of the LED s will be determined as follows NON REMI1 0 00 All ports are removable GR is active high GRI is active high NON REM 1 0 01 Port 1 is non removable GR2 is active high GRI is active low NON REM 1 0 10 Ports 1 4 2 are non removable GR2 is active low GRI is active high NON REM 1 0 11 Ports 1 2 4 3 are non removable GR2 is active low GRI is active low Ports 7 5 Amber AM 7 5 1 012 A
9. only supports two protocols The Write Byte and Read Byte protocols are the only valid SMBus protocols for the Hub The Hub responds to other protocols as described in Section 5 3 2 Invalid Protocol Response Behavior on page 25 Reference the System Management Bus Specification Rev 1 0 The SMBus interface is used to read and write the registers in the device The register set is shown in Section 5 3 9 Internal SMBus Memory Register Set on page 26 5 3 1 Bus Protocols Typical Write Byte and Read Byte protocols are shown below Register accesses are performed using 7 bit slave addressing an 8 bit register address field and an 8 bit data field The shading indicates the Hub driving data on the SMBDATA line otherwise host data is on the SDA SMBDATA line The slave address is the unique SMBus Interface Address for the Hub that identifies it on SMBus The register address field is the internal address of the register to be accessed The register data field is the data that the host is attempting to write to the register or the contents of the register that the host is attempting to read Note Data bytes are transferred MSB first msb first Revision 2 3 08 27 07 SMSC USB2507 24 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet 5 3 1 1 Field Bits E gt SMSC Byte Protocols When using the Hub SMBus Interface for byte transfers a write will always consist of the SMBus Interface Slave Address byte fol
10. 0 seconds Temperature 1 8V supply VDDA18PLL 0 5 2 5 V voltage Vpp18 3 3V supplv VDDA33 0 5 4 0 V voltage VDDA33PLL Vpp33 VDD33CR Voltage on any 0 5 3 3V supply voltage 2 lt 6 V O pin Voltage on 0 5 4 0 V XTALI Voltage on 0 5 Vpp1g 0 3V V XTAL2 Note Stresses above the specified parameters could cause permanent damage to the device This is a stress rating only and functional operation of the device at any condition above those indicated in the operation sections of this specification is not implied When powering this device from laboratory or system power supplies it is important that the Absolute Maximum Ratings not be exceeded or device failure can result Some power supplies exhibit voltage spikes on their outputs when the AC power is switched on or off In addition voltage transients on the AC power line may appear on the DC output When this possibility exists it is suggested that a clamp circuit be used SMSC USB2507 39 DATASHEET Revision 2 3 08 27 07 E gt smsc Integrated USB 2 0 Compatible 7 Port Hub Datasheet 7 2 Recommended Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENTS Operating TA 0 70 C Temperature 1 8V supply voltage Vppa18pLL 1 62 1 98 V DD18 3 3V supply voltage VDDA33 3 0 3 6 V DDA33PLL Vpp33 Vpp33cR Voltage on any I O pin 0 3 5 5 V If any 3 3V supply voltage drops below 3 0V then the MAX becomes 3 3V supply voltage 0 5 Voltage on
11. 1 resistor is attached from ground to this Bias pin to set the transceiver s internal bias settings SMSC USB2507 Revision 2 3 08 27 07 11 DATASHEET E gt SMSC Table 4 1 7 Port Hub Pin Descriptions continued Integrated USB 2 0 Compatible 7 Port Hub Datasheet NAME SYMBOL TYPE FUNCTION SERIAL PORT INTERFACE Serial Data SMB SDA SMBDATA IOSD12 Serial Data SMB Data signal Data Serial Clock SMB SCL SMBCLK IOSD12 Serial Clock SMB Clock signal This multifunction pin is Clock CFG SELO read on the rising edge of RESET N see the applicable 8 7 RESET_N timing table in Section 5 6 1 and will determine Config Select 0 the hub configuration method as described in Table 4 2 Configuration CFG_SEL1 l This multifunction pin is read on the rising edge of Programming RESET N see the applicable RESET N timing table in Select Section 5 6 1 and will determine the hub configuration method as described in Table 4 2 Table 4 2 SMBus or EEPROM Interface Behavior CFG SEL1 CFG SELO SMBus or EEPROM interface behavior 0 0 Reserved 0 1 Configured as an SMBus slave for external download of user defined descriptors SMBus slave address is 0101100 1 0 Internal Default Configuration via strapping options 1 1 2 wire 12C EEPROMS are supported Table 4 3 Miscellaneous Pins NAME SYMBOL TYPE FUNCTION Crystal XTAL1 ICLKx 24MHz cryst
12. 2507 6 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet Chapter 2 Pin Table 7 Port Table 2 1 7 Port Pin Table ee smsc UPSTREAM USB 2 0 INTERFACE 3 PINS USBDPO USBDNO VBUS DET 7 PORT USB 2 0 INTERFACE 44 PINS USBDP1 USBDN1 USBDP2 USBDN2 USBDP3 USBDN3 USBDP4 USBDN4 USBDP5 USBDN5 USBDP6 USBDN6 USBDP7 USBDN7 GR1 GR2 GR3 GR4 NON REMO NON REM1 PRT DISO PRT DIS1 GR5 GR6 GR7 AM1 AM2 AM3 AM4 GANG EN MTT EN LED EN AM5 AM6 AM7 PRTPWR1 PRTPWR2 PRTPWR3 PRTPWR4 PRTPWR5 PRTPWR6 PRTPWR7 OCS1_N OCS2_N OCS3_N OCS4 N OCS5 N OCS6 N OCS7 N PRTPWR POL RBIAS SERIAL PORT INTERFACE 3 PINS SDA SMBDATA SCL SMBCLK CFG SELI CFG SELO MISC 8 PINS XTAL1 CLKIN XTAL2 RESET_N SELF_PWR ATEST CLKIN_EN TEST1 TESTO REG EN POWER GROUND 22 PINS SMSC USB2507 7 DATASHEET Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub gt SMSC Datasheet Chapter 3 Pin Configuration 7 Port Hub OCS7 N CH PRTPWR_POL CLKIN EN 1 PRTPWR2 IF JI PRTPWR3 41 ___ OCS1_N JOCS2_N I I PRTPWR4 N7 0C83 N PRTPWR5 r jocsa N 1 VDD33CR N7 VDD18 17 PRTPWR6 l ocss N PRTPWR7 l jocse N I IRESET N 60r VBUS DEI VDDA33 ___ 61 A0 IPRTPWR1 vss USB2507 I VDD33 I IGRA PRT DIS JAM4 LED EN GR3 PRT DISO JAM3 GR2 NON
13. ASHEET Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet Table 4 5 Buffer Type Descriptions continued BUFFER DESCRIPTION 1 012 Input Output 12MA IOSD12 Open drain 12mA sink with Schmitt trigger and must meet DC Bus Specification Version 2 1 requirements ICLKx XTAL Clock Input OCLKx XTAL Clock Output I R RBIAS IO U Defined in USB Specification Note Meets USB 1 1 requirements when operating as a 1 1 compliant device and meets USB 2 0 requirements when operating as a 2 0 compliant device AIO Analog Input output Per PHV test requirements Revision 2 3 08 27 07 SMSC USB2507 14 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet ee SMSC Chapter 5 Functional Block Description 5 1 5 1 1 5 1 1 1 5 1 1 2 5 1 1 3 5 1 1 4 SMSC USB2507 7 Port Hub SMSC s USB 2 0 7 Port Hub is fully specification compliant to the Universal Serial Bus Specification Revision 2 0 April 27 2000 12 7 2000 and 5 28 2002 Errata Please reference Chapter 11 Hub Specification for general details regarding Hub operation and functionality For performance reasons the 7 Port Hub provides 1 Transaction Translator TT per port defined as Multi TT configuration divided into 4 non periodic buffers per TT Hub Configuration Options The SMSC Hub supports a large number of features and must be configured in order to correctl
14. E NY 11788 631 435 6000 FAX 631 273 3123 Copyright 2007 SMSC or its subsidiaries All rights reserved Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications Consequently complete information sufficient for construction purposes is not necessarily given Although the information has been checked and is believed to be accurate no responsibility is assumed for inaccuracies SMSC reserves the right to make changes to specifications and product descriptions at any time without notice Contact your local SMSC sales office to obtain the latest specifications before placing your product order The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order the Terms of Sale Agreement The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications Anomalv sheets are available upon request SMSC products are not designed intended authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or seve
15. ED indicators are disabled The Hub is operational 500us after RESET N is negated Once operational the Hub immediately reads OEM specific data from the external EEPROM if the SMBus option is not disabled SMSC USB2507 33 Revision 2 3 08 27 07 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt SMSC Datasheet 5 6 1 1 RESET_N for Strapping Option Configuration Drive Strap Start Hardware Read Strap Outputs to Attach USB Reset completion reset S USB Idle asseried Options inactive Upstream recovery request N E levels ik N N N NG l ha l l l l l l l l l l l budh ad huo Ba nG pra MN Pt kag la RESET N km l l l 4 l l l l l l tad l l l l vss aan i i i i l l l l Strap Pins VSS Figure 5 2 Reset_N Timing for Default Strap Option Mode Table 5 5 Reset_N Timing for Default Strap Option Mode NAME DESCRIPTION MIN TYP MAX UNITS ti RESET N Asserted 1 usec t2 Strap Setup Time 16 7 nsec 13 Strap Hold Time 16 7 1400 nsec t4 hub outputs driven to inactive logic states 2 0 1 5 usec t5 USB Attach See Note 100 msec t6 Host acknowledges attach and signals USB 100 msec Reset t7 USB Idle undefined msec t8 Completion time for requests with or without data 5 msec stage 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
16. EEPROM Offset 1 0 h Vendor ID BIT NUMBER BIT NAME DESCRIPTION 15 8 VID MSB Most Significant Byte of the Vendor ID 7 0 VID LSB Least Significant Byte of the Vendor ID 5 2 3 2 EEPROM Offset 3 2 h Product ID BIT NUMBER BIT NAME DESCRIPTION 15 8 PID MSB Most Significant Byte of the Product ID 7 0 PID LSB Least Significant Byte of the Product ID 5 2 3 3 EEPROM Offset 5 4 h Device ID BIT NUMBER BIT NAME DESCRIPTION 15 8 DID MSB Most Significant Bvte of the Device ID 7 0 DID LSB Least Significant Bvte of the Device ID 5 2 3 4 EEPROM Offset 6 h CONFIG BYTE 1 BIT NUMBER BIT NAME DESCRIPTION FA SELF BUS PWR Self or Bus Power Selects between Self and Bus Powered operation 0 Bus Powered operation BUS Default 1 Self Powered operation SELF Default Note If Dvnamic Power Switching is enabled this bit is ignored and the SELF PWR pin is used to determine if the hub is operating from self or bus power 6 PORT IND Port Indicator Support Indicates implementation of LED indicators 0 No LED indicators 1 LED indicators Revision 2 3 08 27 07 20 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet E gt SMSC BIT NUMBER BIT NAME DESCRIPTION 5 HS_DISABLE High Speed Disable Disables the capability to attach as either a High Full speed device and forces attachment as Full speed only i e no High Speed support 0 High Full Speed De
17. EEPROM interface is designed to attach to a single dedicated 12C EEPROM and it conforms to the Standard mode 12C Specification 100kbit s transfer rate and 7 bit addressing for protocol and electrical compatibilitv Note Extensions to the I2C Specification are not supported The Hub acts as the master and generates the serial clock SCL controls the bus access determines which device acts as the transmitter and which device acts as the receiver and generates the START and STOP conditions 18 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt SMSC Datasheet 5 2 1 1 Implementation Characteristics Please refer to the MicroChip 24AA00 DataSheet for Protocol and Programming specifics 5 2 1 2 Pull Up Resistor The Circuit board designer is required to place external pull up resistors 10KQ recommended on the SDA SMBDATA amp SCL SMBCLK CFG_SELO lines per SMBus 1 0 Specification and EEPROM manufacturer guidelines to Vcc in order to assure proper operation 5 2 1 3 I2C EEPROM Slave Address Slave address is 1010000 Note 10 bit addressing is NOT supported 5 2 2 In Circuit EEPROM Programming The EEPROM can be programmed via ATE by pulling RESET N low which tri states the Hub s EEPROM interface and allows an external source to program the EEPROM 5 2 3 EEPROM DATA Table 5 1 User Defined Descriptor Data DEFAULT DEFAULT BYTE CFG CFG MSB SIZE SELF BUS FIELD LSB BYTES HEX
18. G BIT 7 BITO ADDR RW REGISTER NAME ABBR MSB BIT6 BIT5 BITA BIT3 BIT2 BIT1 LSB OCh R W Max Power Self MAKPS 7 6 5 4 3 2 1 0 ODh R W Max Power Bus MAXPB 7 6 5 4 3 2 1 0 OEh R W Hub Controller HCMCS 7 6 5 4 3 2 1 0 Max Current Self OFh R W Hub Controller HCMCB 7 6 5 4 3 2 1 0 Max Current bus 10h R W Power on Time PWRT 7 6 5 4 3 2 1 0 5 3 9 1 Register 00h Status Command Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 3 Reserved Reserved Note Software must never write a 1 to these bits 2 RESET Reset the SMBus Interface and internal memory back to RESET N assertion default settings Note During this reset this bit is automatically cleared to its default value of O 0 Normal Run Idle State 1 Force a reset 1 WRITE_PROT Write Protect The external SMBus host sets this bit after the Hub s internal memory is loaded with configuration data Note The External SMBus Host is responsible for verification of downloaded data 0 The internal memory address range 01 10h is not write protected 1 The internal memory address range 01 10h is write protected to prevent unintentional data corruption Note This bit is write once and is only cleared by assertion of the external RESET_N pin 0 USB_ATTACH USB Attach amp power down the SMBus Interface 0 Default SMBus slave interface is active 1 Hub will signal
19. REM1 JAM2MTT EN JGRI NON REMO JAM1 GANG EN JSDA SMBDATA vssl op 21 ISCL SMBCLK CFG SELO Y o o a lt fa m a bal Dn a Oo gt gt 3 XTAL1 CLKIN L__ VDDA18PLL L I VDDA33PLL __ ATEST REG EN L___ TESTO 7 TESTI L I Clan CFG SEL1 VDDA33 fi USBDP3 USBDP5 USBDN6 CI VDDA33 CI USBDP7 Ci USBDN4 SELF PWR Figure 3 1 7 Port 80 Pin TQFP Revision 2 3 08 27 07 SMSC USB2507 8 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub ee SMSC Datasheet Chapter 4 7 Port Hub Block Diagram To pin EEPROM Upstream Upstream 24MHz y 18V Strapping or SMBus USB Data Veus Crystal Cap Options Master l A SD 4SCL V Internal p BUS 8 Defaults ower Select Detect AN Serial Interface Ll Controller Upstream PHY Repeater Jl Port Controller Routing Logic Port 1 Port 7 OC Sense OC Sense Switch Driver Switch Driver LED Drivers LED Drivers ig Downstream PHY 1 Downstream PHY 7 Downstream OC Switch LED USB Data Sense Drivers Downstream USB Data OC Switch LED Sense Drivers Figure 4 1 7 Port Block Diagram Table 4 1 7 Port Hub Pin Descriptions VBUS Power SMSC USB2507 9 DATASHEET NAME SYMBOL TYPE FUNCTION UPSTREAM USB 2 0 INTERFACE USB Bus Data
20. SMSC SUCCESS BV DESIGN PRODUCT FEATURES USB2507 foal en USB Integrated USB 2 0 Compatible 7 Port Hub Datasheet Integrated USB 2 0 Compatible 7 Port Hub 7 Transaction Translators for highest performance High Speed 480Mbits s Full Speed 12Mbits s and Low Speed 1 5Mbits s compatible Full power management with per port or ganged selectable power control Detects Bus Power Self Power source and changes mode automatically Complete USB Specification 2 0 Compatibility Includes USB 2 0 Transceivers a VID PID DID and Port Configuration for Hub via Single Serial DC EEPROM SMBus Slave Port Default VID PID DID allows functionality when configuration EEPROM is absent Hardware Strapping options allow for configuration without an external EEPROM or SMBus Host On Board 24MHz Crystal Driver Circuit or 24 MHz external clock driver Internal PLL for 480MHz USB 2 0 Sampling Internal 1 8V Linear Voltage Regulator Integrated USB termination and Pull up Pull down resistors Internal Short Circuit protection of USB differential signal pins 1 8 Volt Low Power Core Operation 3 3 Volt I O with 5V Input Tolerance 80 Pin TQFP lead free RoHS compliant package SMSC USB2507 DATASHEET Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet ORDER NUMBER USB2507 ADT FOR 80 PIN TQFP LEAD FREE ROHS COMPLIANT PACKAGE E gt smsc 80 ARKAY DRIVE HAUPPAUG
21. Vpp33 Note 1 OSD12 Type Buffer Low Output Level VoL 0 4 V lo 12 mA Vppss 3 3V Output Leakage o CDS 10 HA ly Dto Vpp33 Note 1 Hysteresis Vue 250 300 350 mv IO U Note 2 l R Note 3 Supply Current Unconfig ured High Speed Host ICCINIT 100 MA Full Speed Host ICCINIT 90 MA Supply Current Total from all supplies Configured High Speed Host 2 Ports FS LS Wo 180 mA 2 Ports HS HcH2 225 MA 1 Port HS 1 Port FS LS j 300 ie 4 Ports HS ees 360 mA 7 Ports B HS SMSC USB2507 41 DATASHEET Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet Table 7 1 DC Electrical Characteristics continued PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS Supply Current Total from all supplies Configured Full Speed Host mA 1 Port Ircci 175 mA 2 Ports IFCC2 175 mA 3 Ports FCO3 pu ma 4 Ports Ko 175 m 7 Ports FOET Supply Current lcsBy 225 uA Total from all supplies Suspend Notes 1 Output leakage is measured with the current pins in high impedance 2 See USB 2 0 Specification for USB DC electrical characteristics 3 RBIAS is a 3 3V tolerant analog pin CAPACITANCE TA 25 C fc 1MHz Vpp33 3 3V LIMITS PARAMETER SYMBOL MIN TYP MAX UNIT TEST CONDITION Clock Input Cin 12 pF All pins except USB pins and pins under Capacitance test tied to AC ground Input Capacitance Cin 8 pF Output Ca
22. XTAL1 0 3 VDDA33 V Voltage on XTAL2 0 3 Vpp18 V Table 7 1 DC Electrical Characteristics PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS I IS Type Input Buffer Low Input Level Vu 0 8 V TTL Levels High Input Level Vu 2 0 V l 1 1 A Input Leakage IL S SR a Vin 0 to Vpn33 Vuysi 250 300 350 mV Hysteresis IS Only Input Buffer with Pull Up IPU Low Input Level Vu 0 8 V TTL Levels High Input Level Vu SR KM Ju 426 472 uA Low Input Leakage Vin 0 Ju 10 10 uA High Input Leakage Vin Vpp33 Input Buffer with Pull Down IPD Low Input Level Vu 0 8 V TTL Levels High Input Level Viki H y Nite 10 10 uA Low Input Leakage Vin 0 Ju 22 82 uA High Input Leakage Vin Vpp33 Revision 2 3 08 27 07 40 DATASHEET SMSC USB2507 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet Table 7 1 DC Electrical Characteristics continued PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS ICLK Input Buffer Low Input Level ViLck 0 8 V TTL Levels High Input Level ViHck 2 0 V Input Leakage ln AN iku BA Vin 0 to Vpn33 Vuysc 50 100 mV Hysteresis O12 and 1 012 Type Buffer Low Output Level VoL 0 4 V Lo 12MA Vppss 3 3V High Output Level VoH 2 4 V lon Am Vpp33 3 3V Output Leakage lat 10 UA Vin 0 to Vppss Note 1 OD12 Type Buffer Low Output Level VoL 0 4 V lo 12MA Vpp33 3 3V Output Leakage lo 10 10 HA Vin 0 to
23. al or external clock input Input External CLKIN This pin connects to either one terminal of the crystal or Clock Input to an external 24MHz clock when a crystal is not used Crystal Output XTAL2 OCLKx 24MHz Crystal This is the other terminal of the crystal or left unconnected when an external clock source is used to drive XTAL1 CLKIN It must not be used to drive any external circuitry other than the crystal circuit Clock Input CLKIN EN Clock In Enable Enable Low XTAL1 and XTAL2 pins configured for use with external crystal High XTALI pin configured as CLKIN and must be driven by an external CMOS clock RESET Input RESET_N IS This active low signal is used by the system to reset the chip The minimum active low pulse is 1us Self Power SELF_PWR l Detects availability of local self power source Bus Power Low Self local power source is NOT available i e Hub Detect gets all power from Upstream USB VBus High Self local power source is available TEST Pins TEST 1 0 IPD Used for testing the chip User must treat as a no connect or connect to ground Revision 2 3 08 27 07 12 DATASHEET SMSC USB2507 Integrated USB 2 0 Compatible 7 Port Hub ee SMSC Datasheet Table 4 3 Miscellaneous Pins continued NAME SYMBOL TYPE FUNCTION Analog Test ATEST AlO This signal is used for testing the analog section of the 8 REG EN chip and
24. an invalid protocol are not updated A register is only updated following a valid protocol The only valid protocols are Write Byte and Read Byte which are described above The Hub only responds to the hardware selected Slave Address Attempting to communicate with the Hub over SMBus with an invalid slave address or invalid protocol results in no response and the SMBus Slave Interface returns to the idle state The only valid registers that are accessible by the SMBus slave address are the registers defined in the Registers Section See Section 5 3 3 for the response to undefined registers General Call Address Response The Hub does not respond to a general call address of 0000 000b Revision 2 3 08 27 07 25 DATASHEET E gt smsc Integrated USB 2 0 Compatible 7 Port Hub Datasheet 5 3 4 Slave Device Time Out According to the SMBus Specification V1 0 devices in a transfer can abort the transfer in progress and release the bus when any single clock low interval exceeds 25ms T rimeour min Devices that have detected this condition must reset their communication and be able to receive a new START condition no later than 35ms TTIMEOUT MAX Note Some simple devices do not contain a clock low drive circuit this simple kind of device typically resets its communications port after a start or stop condition 5 3 5 Stretching the SCLK Signal The Hub supports stretching of the SCLK by other de
25. atures A default configuration is available in the USB2507 following a reset This configuration may be sufficient for some applications Strapping option pins make it possible to modify a limited sub set of the configuration options The USB2507 may also be configured by an external EEPROM or a microcontroller When using the microcontroller interface the Hub appears as an SMBus slave device If the Hub is pin strapped for external EEPROM configuration but no external EEPROM is present then a value of 0 will be written to all configuration data bit fields the hub will attach to the host with all O values The 7 Port Hub supports several OEM selectable features m Operation as a Self Powered USB Hub or as a Bus Powered USB Hub m Operation as a Dynamic Powered Hub Hub operates as a Bus Powered device if a local power source is not available and switches to Self Powered operation when a local power source is available a Optional OEM configuration via DC EEPROM or via the industry standard SMBus interface from an external SMBus Host LED indicator support Compound device support port is permanently hardwired to a downstream USB peripheral device Hardware strapping options enable configuration of the following features Non Removable Ports Port Power Polarity active high or active low logic Port Disable LED support MTT enable Ganged Vs Port power switching and over current sensing Revision 2 3 08 27 07 SMSC USB
26. con along with the combined power consumption from VBUS of all associated circuitry on the board This value also includes the power consumption of a permanently attached peripheral if the hub is configured as a compound device and the embedded peripheral reports OmA in its descriptors A value of 50 decimal indicates 100mA 5 2 3 11 EEPROM Offset D h Hub Controller Max Current For Self Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7 0 HC_MAX_C_SP Hub Controller Max Current Self Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a self powered hub This value includes the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the board This value does NOT include the power consumption of a permanently attached peripheral if the hub is configured as a compound device Note The USB 2 0 Specification does not permit this value to exceed 100mA A value of 50 decimal indicates 100mA which is the default value SMSC USB2507 Revision 2 3 08 27 07 23 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc 5 2 3 12 EEPROM Offset E h Hub Controller Max Current For Bus Powered Operation Datasheet BIT NUMBER BIT NAME DESCRIPTION 7 0 HC MAX C BP Hub Controller Max Current Bus Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operati
27. configuration the Bus Powered SMSC Hub along with all associated hub circuitry any embedded devices if part of a compound device and 100mA per externally available downstream port must consume no more than 500mA of upstream VBUS current The current consumption is system dependent and the OEM must ensure that the USB 2 0 specifications are not Violated When configured as a Self Powered device lt 1mA of upstream VBUS current is consumed and all 7 ports are available with each port being capable of sourcing 500mA of current This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the SELF PWR pin determines the Self powered or Bus powered status Please see the description under Dynamic Power for the self bus power functionality when dynamic power switching is enabled 15 Revision 2 3 08 27 07 DATASHEET E gt smsc 5 1 1 5 5 1 1 6 5 1 1 7 5 1 1 8 5 1 1 9 5 1 1 10 5 1 1 11 Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub Datasheet Port Indicators Controls the use of LED indicator for Port status information See Section 11 5 3 of the USB 2 0 Specification for additional details This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the LED EN pin enables disables LED Indicator support High Speed Disable Allows an OEM to force the Hub to configure as a F
28. f local power is available This field is set by the OEM using either the SMBus or EEPROM interface options Over Current Timer The time delay in 2ms increments for an over current condition to persist before it is reported to the Host This field is set by the OEM using either the SMBus or EEPROM interface options Self Powered Max Power When in Self Powered configuration Sets value in 2mA increments This field is set by the OEM using either the SMBus or EEPROM interface options Bus Powered Max Power When in Bus Powered configuration Sets value in 2MA increments This field is set by the OEM using either the SMBus or EEPROM interface options Revision 2 3 08 27 07 17 DATASHEET E gt smsc 5 1 1 19 5 1 1 20 5 1 1 21 5 1 1 22 5 1 2 5 2 5 2 1 Revision 2 3 08 27 07 Integrated USB 2 0 Compatible 7 Port Hub Datasheet Self powered Hub Controller Current When in Self Powered configuration Maximum current requirements of the Hub Controller in 2MA increments This field is set by the OEM using either the SMBus or EEPROM interface options Bus Powered Hub Controller Current When in Bus Powered configuration Maximum current requirements of the Hub Controller in 2mA increments This field is set by the OEM using either the SMBus or EEPROM interface options Power On Timer Time in 2ms intervals from the time power on sequence begins on a port until power is good on that port System sof
29. fault 1 Full Speed Only High Speed disabled MTT_ENABLE Multi TT enable Enables one transaction translator per port operation 0 single TT for all ports 1 one TT per port multiple TT s supported EOP_DISABLE EOP Disable Disables EOP generation at EOF1 when no downstream directed traffic is in progress 0 EOP generation at EOF1 is enabled 1 EOP generation at EOF1 is disabled normal operation Default 2 1 CURRENT_SNS Over Current Sense Indicates whether current sensing is on a port by port basis or ganged 00 Ganged sensing all ports together Default for self power 01 Individual port by port PORT_PWR Port Power Switching Indicates whether port power switching is on a port by port basis or ganged 0 Ganged switching all ports together 1 Individual port by port switching 5 2 3 5 EEPROM Offset 7 h CONFIG_BYTE_2 BIT NUMBER BIT NAME DESCRIPTION 7 DYNAMIC Dynamic Power Enable Controls the ability for the Hub to transition to Bus Powered operation if the local power source is removed can revert back to Self Power if local power source is restored 0 No Dynamic auto switching 1 Dynamic Auto switching capable Default Reserved Reserved 5 4 OC_TIMER OverCurrent Timer Over Current Timer delay 00 0 1ms 01 2ms Default 10 4ms 11 6ms COMPOUND Compound Device Designates if Hub i
30. g with port 7 This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the PRT_DIS 1 0 pins will disable the appropriate ports Bus Powered Port DISABLE During Bus Powered operation this selects the ports which will be permanently disabled and are not available to be enabled or enumerated by a Host Controller The disabled ports must be contiguous and must be in decreasing order starting with port 7 This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the PRT_DIS 1 0 pins will disable the appropriate ports Dynamic Power Controls the ability of the 7 Port Hub to automatically change from Self Powered operation to Bus Powered operation if the local power source is removed or is unavailable and from Bus Powered to Self Powered if the local power source is restored Note If the local power source is available the 7 port Hub will always switch to Self Powered operation When Dynamic Power switching is enabled the Hub detects the availability of a local power source by monitoring the external SELF_PWR pin If the Hub detects a change in power source availability the Hub immediately disconnects and removes power from all downstream devices and disconnects the upstream port The Hub will then re attach to the upstream port as either a Bus Powered Hub if local power in unavailable or a Self Powered Hub i
31. lf Powered Operation Reset 0x00 DESCRIPTION 7 0 PORT DIS SP Port Disable Self Powered Disables 1 or more contiguous ports 0 port is available 1 port is disabled Bit 7 1 Port 7 is disabled Bit 6 1 Port 6 is disabled Bit 5 1 Port 5 is disabled Bit 4 1 Port 4 is disabled Bit 3 1 Port 3 is disabled Bit 2 1 Port 2 is disabled Bit 1 1 Port 1 is disabled Bit O is Reserved always 0 5 3 9 12 BIT NUMBER BIT NAME Register 0Bh Port Disable For Bus Powered Operation Reset 0x00 DESCRIPTION 7 0 PORT DIS BP Port Disable Bus Powered Disables 1 or more contiguous ports O port is available 1 port is disabled Bit 7 1 Port 7 is disabled Bit 6 1 Port 6 is disabled Bit 5 1 Port 5 is disabled Bit 4 1 Port 4 is disabled Bit 3 1 Port 3 is disabled Bit 2 1 Port 2 is disabled Bit 1 1 Port 1 is disabled Bit O is Reserved always 0 5 3 9 13 Register OCh Max Power For Self Powered Operation Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION Revision 2 3 08 27 07 30 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub er o Datasheet 7 0 MAX_PWR_SP Max Power Self_Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a self powered hub This value includes the hub silicon along with the combined power
32. lowed by the Internal Address Register byte then the data byte The normal read protocol consists of a write to the HUB with the SMBus Interface Address byte followed by the Internal Address Register byte Then restart the Serial Communication with a Read consisting of the SMBus Interface Address byte followed by the data byte read from the Hub This can be accomplished by using the Read Byte protocol Note For the following SMBus tables Denotes Master to Slave Denotes Slave to Master Write Byte The Write Byte protocol is used to write data to the registers The data will only be written if the protocol shown in Table 5 2 is performed correctly Only one byte is transferred at a time for a Write Byte protocol Table 5 2 SMBus Write Byte Protocol Start Slave Addr Wr Ack Reg Addr Ack Reg Data Ack Stop 1 7 1 1 8 i 8 1 1 Read Bvte The Read Byte protocol is used to read data from the registers The data will only be read if the protocol shown in Table 5 3 is performed correctly Only one byte is transferred at a time for a Read Byte protocol Table 5 3 SMBus Read Byte Protocol Field Start Slave Wr Ack Reg Ack Start Slave Rd Ack Reg Nack Stop Addr Addr Addr Data Bits 7 1 1 8 1 1 7 1 1 8 1 1 5 3 2 5 3 3 SMSC USB2507 Invalid Protocol Response Behavior Registers that are accessed with
33. mber indicator LED s for ports 7 5 LED is active low LED Revision 2 3 08 27 07 10 DATASHEET SMSC USB2507 Integrated USB 2 0 Compatible 7 Port Hub E gt SMSC Datasheet Table 4 1 7 Port Hub Pin Descriptions continued NAME SYMBOL TYPE FUNCTION Port 4 Amber AM4 1 012 Amber indicator LED for port 4 Will be active low when LED LED LED EN support is enabled via EEPROM or SMBus 8 LED Enable If the hub is configured by the internal default configuration strapping option this pin will be sampled at RESET_N negation to determine if LED support is enabled or disabled Also the active state of the LED will be determined as follows 0 LED support is disabled LED is inactive 1 LED Support is enabled LED is active low Port 3 Amber AM3 11012 Amber indicator LED for port 3 Signal will be active low LED Port 2 Amber AM2 11012 Amber indicator LED for port 2 Will be active low when LED LED MTT_EN support is enabled via EEPROM or SMBus 8 MTT Disable If the hub is configured by the internal default configuration this pin will be sampled at RESET_N negation to determine if MTT support is disabled STT only Also the active state of the LED will be determined as follows 0 MIT support is disabled LED is active high T MTT support is enabled LED is active low Port 1 Amber LED 8 Gang Power Switching and Current Sensing strapping option AM1 012 Amber i
34. ndicator LED for port 1 Will be active low when LED GANG_EN support is enabled via EEPROM or SMBus If the hub is configured by the internal default configuration this pin will be sampled at RESET_N negation to determine if downstream port power switching and current sensing are ganged or individual port by port Also the active state of the LED will be determined as follows 0 Port by port sensing amp switching LED is active high 1 Ganged sensing amp switching LED is active low Port Power Polarity strapping PRTPWR_POL 1 012 Port Power Polarity strapping determination for the active signal polarity of the 7 1PRTPWR pins While RESET N is asserted the logic state of this pin will though the use of internal combinatorial logic determine the active state of the 7 1PRTPWR pins in order to ensure that downstream port power is not inadvertently enabled to inactive ports during a hardware reset On the rising edge of RESET N see the applicable RESET N timing table in Section 5 6 1 the logic value will be latched internally and will retain the active signal polarity for the PRTPWR7 1 pin 1 PRTPWR7 1 pins have an active high polarity 0 PRTPWR7 1 pins have an active low polarity Over Current OCS7 1 N IPU Input from external current monitor indicating an over Sense current condition Note Contains internal pull up to 3 3V supply USB Transceiver RBIAS I R A 12 0kQ
35. ng as a self powered hub This value includes the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the board This value does NOT include the power consumption of a permanently attached peripheral if the hub is configured as a compound device A value of 50 decimal indicates 100mA which is the default value 5 2 3 13 EEPROM Offset F h Power On Time BIT NUMBER BIT NAME DESCRIPTION 7 0 POWER ON TIME Power On Time The length of time that is takes in 2 ms intervals from the time the host initiated power on sequence begins on a port until power is good on that port 5 3 SMBus Slave Interface Instead of loading User Defined Descriptor data from an external EEPROM the SMSC Hub can be configured to receive a code load from an external processor via an SMBus interface The SMBus interface shares the same pins as the EEPROM interface if CFG SEL1 8 CFG SELO activates the SMBus interface external EEPROM support is no longer available and the user defined descriptor data must be downloaded via the SMBus Due to system issues the SMSC Hub waits indefinitely for the SMBus code load to complete and only appears as a newly connected device on USB after the code load is complete The Hub s SMBus implementation is a subset of the SMBus interface to the host The device is a slave only SMBus device The implementation in the device is a subset of SMBus since it
36. ntiguous ports 0 port is available 1 port is disabled Bit 7 1 Port 7 is disabled Bit 6 1 Port 6 is disabled Bit 5 1 Port 5 is disabled Bit 4 1 Port 4 is disabled Bit 3 1 Port 3 is disabled Bit 2 1 Port 2 is disabled Bit 1 1 Port 1 is disabled Bit O is Reserved always 0 Revision 2 3 08 27 07 22 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub er o Datasheet 5 2 3 9 EEPROM Offset B h Max Power For Self Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7 0 MAX_PWR_SP Max Power Self_Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a self powered hub This value includes the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the board This value also includes the power consumption of a permanently attached peripheral if the hub is configured as a compound device and the embedded peripheral reports OmA in its descriptors Note The USB 2 0 Specification does not permit this value to exceed 100mA A value of 50 decimal indicates 100mA 5 2 3 10 EEPROM Offset C h Max Power For Bus Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7 0 MAX_PWR_BP Max Power Bus_Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a bus powered hub This value includes the hub sili
37. oard This value does NOT include the power consumption of a permanently attached peripheral if the hub is configured as a compound device Note The USB 2 0 Specification does not permit this value to exceed 100mA A value of 50 decimal indicates 100mA which is the default value 5 3 9 16 Register OFh Hub Controller Max Current For Bus Powered Operation Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 HC_MAX_C_BP Hub Controller Max Current Bus Powered Value in 2mA increments that the Hub consumes from an upstream port VBUS when operating as a bus powered hub This value will include the hub silicon along with the combined power consumption from VBUS of all associated circuitry on the board This value will NOT include the power consumption of a permanently attached peripheral if the hub is configured as a compound device A value of 50 decimal would indicate 100mA which is the default value SMSC USB2507 Revision 2 3 08 27 07 31 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet 5 3 9 17 Register 10h Power On Time Reset 0x00 BIT NUMBER BIT NAME DESCRIPTION 7 0 POWER_ON_TIME Power On Time The length of time that it takes in 2 ms intervals from the time the host initiated power on sequence begins on a port until power is good on that port 5 3 9 18 Undefined Registers The registers shown in Table 5 4 are the defined regi
38. pacitance Cour 12 pF Power Sequencing There are no power supply sequence restrictions for the Hub The order in which power supplies power up and power down is implementation dependent Revision 2 3 08 27 07 SMSC USB2507 42 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet Chapter 8 AC Specifications 8 1 Oscillator Clock Crystal Parallel Resonant Fundamental Mode 24 MHz 100ppm External Clock 50 Duty cycle 10 24 MHz 100ppm Jitter lt 100ps rms 8 1 1 SMBus Interface The SMSC Hub conforms to all voltage power and timing characteristics and specifications as set forth in the SMBus 1 0 Specification for Slave Only devices except as noted in Section 5 3 8 1 2 I2C EEPROM Frequency is fixed at 59KHz 20 8 1 3 USB 2 0 The Hub conforms to all voltage power and timing characteristics and specifications as set forth in the USB 2 0 Specification Please refer to the USB Specification for more information SMSC USB2507 Revision 2 3 08 27 07 43 DATASHEET E gt smsc Chapter 9 Package Outline Integrated USB 2 0 Compatible 7 Port Hub Datasheet ka el T sil Ii Figure 9 1 80 Pin TQFP Package Outline 12x12x1 4 mm body 2 mm footprint Table 9 1 80 Pin TQFP Package Parameters MIN NOMINAL MAX REMARKS A 1 40 a 1 60 Overall Package Heigh
39. re property damage Any and all such uses without prior written approval of an Officer of SMSC and further testing and or modification will be fully at the risk of the customer Copies of this document or other SMSC literature as well as the Terms of Sale Agreement may be obtained by visiting SMSC s website at http www smsc com SMSC is a registered trademark of Standard Microsvstems Corporation SMSC Product names and company names are the trademarks of their respective holders SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE TITLE AND AGAINST INFRINGEMENT AND THE LIKE AND ANY AND ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT INCIDENTAL INDIRECT SPECIAL PUNITIVE OR CONSEQUENTIAL DAMAGES OR FOR LOST DATA PROFITS SAVINGS OR REVENUES OF ANY KIND REGARDLESS OF THE FORM OF ACTION WHETHER BASED ON CONTRACT TORT NEGLIGENCE OF SMSC OR OTHERS STRICT LIABILITY BREACH OF WARRANTY OR OTHERWISE WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Revision 2 3 08 27 07 SMSC USB2507 2 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet Table of Contents Chapter 1 General Description 6
40. red operation 0 Bus Powered operation 1 Self Powered operation Note If Dynamic Power Switching is enabled this bit is ignored and the SELF PWR pin is used to determine if the hub is operating from self or bus power 6 PORT IND Port Indicator Support Indicates implementation of LED indicators Revision 2 3 08 27 07 0 No LED indicators 1 LED indicators 28 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet E gt SMSC BIT NUMBER BIT NAME DESCRIPTION 5 HS_DISABLE High Speed Disable Disables the capability to attach as either a High Full speed device and forces attachment as Full speed only i e no High Speed support 0 High Full Speed 1 Full Speed Only High Speed disabled 4 MTT_ENABLE Multi TT enable Enables one transaction translator per port operation 0 single TT for all ports 1 one TT per port multiple TT s supported 3 EOP_DISABLE 2 1 CURRENT_SNS EOP Disable Disables EOP generation of EOF1 when in Full Speed mode 0 EOP generation is normal 1 EOP generation is disabled Over Current Sense Indicates whether current sensing is on a port by port basis or ganged 00 Ganged sensing all ports together 01 Individual port bv port 0 PORT PWR Port Power Switching Indicates whether port power switching is on a port by port basis or ganged 0 Ganged switching all ports together 1
41. rical Characteristics 40 80 Pin TQFP Package Parameters 44 Revision 2 3 08 27 07 5 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Chapter 1 General Description Datasheet The SMSC 7 Port Hub is fully compliant with the USB 2 0 Specification and will attach to a USB host as a Full Speed Hub or as a Full High Speed Hub The 7 Port Hub supports Low Speed Full Speed and High Speed if operating as a High Speed Hub downstream devices on all of the enabled downstream ports A dedicated Transaction Translator TT is available for each downstream facing port This architecture ensures maximum USB throughput for each connected device when operating with mixed speed peripherals The Hub works with an external USB power distribution switch device to control Vgus switching to downstream ports and to limit current and sense over current conditions All required resistors on the USB ports are integrated into the Hub This includes all series termination resistors on D and D pins and all required pull down and pull up resistors on D and D pins The over current sense inputs for the downstream facing ports have internal pull up resistors Throughout this document the upstream facing port of the hub will be referred to as the upstream port and the downstream facing ports will be called the downstream ports 1 1 OEM Selectable Fe
42. s part of a compound device 0 No Default 1 Yes Hub is part of a compound device 2 0 Reserved Reserved SMSC USB2507 Revision 2 3 08 27 07 21 DATASHEET E gt smsc Integrated USB 2 0 Compatible 7 Port Hub Datasheet 5 2 3 6 EEPROM Offset 8 h Non Removable Device BIT NUMBER BIT NAME DESCRIPTION 7 0 NR DEVICE Non Removable Device Indicates which port s include non removable devic es 0 port is removable 1 port is non removable Bit 7 1 Port 7 non removable Bit 6 1 Port 6 non removable Bit 5 1 Port 5 non removable Bit 4 1 Port 4 non removable Bit 3 1 Port 3 non removable Bit 2 1 Port 2 non removable Bit 1 1 Port 1 non removable Bit O is Reserved always 0 5 2 3 7 EEPROM Offset 9 h Port Disable For Self Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7 0 PORT_DIS_SP Port Disable Self Powered Disables 1 or more contiguous ports 0 port is available 1 port is disabled Bit 7 1 Port 7 is disabled Bit 6 1 Port 6 is disabled Bit 5 1 Port 5 is disabled Bit 4 1 Port 4 is disabled Bit 3 1 Port 3 is disabled Bit 2 1 Port 2 is disabled Bit 1 1 Port 1 is disabled Bit O is Reserved always 0 5 2 3 8 EEPROM Offset A h Port Disable For Bus Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7 0 PORT_DIS_BP Port Disable Bus Powered Disables 1 or more co
43. sc Datasheet 5 6 1 3 RESET N for SMBus Slave Configuration Start delia Reset SMBus Code Hub PHY Altach USB Reset completion reset HAO USB ldle Negation Load Stabilization recovery request asserted Upstream NOON N N NN NN l l l l l l l l l l l l l la H pla i213 phe tale 15 pl t6 lg 17 wl l l l l l RESET N l A rs VSS py e e l Figure 5 4 Reset N Timing for SMBus Mode Table 5 7 Reset N Timing for SMBus Mode NAME DESCRIPTION MIN TVP MAX UNITS ti RESET N Asserted 1 usec t2 Hub Recovery Stabilization 500 usec t3 SMBus Code Load See Note 10 99 5 msec t4 Hub Configuration and USB Attach 100 msec t5 Host acknowledges attach and signals USB 100 msec Reset t6 USB Idle Undefined msec t7 Completion time for requests with or without data 5 msec stage Notes For Bus Powered configurations the 99 5ms MAX is required and the Hub and its associated circuitry must not consume more than 100mA from the upstream USB power source during t2 t3 t4 t5 t6 t7 For Self Powered configurations t3 MAX is not applicable and the time to load the configuration is determined by the external SMBus host a All Power Supplies must have reached the operating levels mandated in Section Chapter 7 DC Parameters prior to or coincident with the assertion of RESET N 5 6 2 USB Bus Reset In response to the upstream port signaling a reset to the Hub the Hub does the following Note The H
44. sters in the Hub Reads to undefined registers return 00h Writes to undefined registers have no effect and do not return an error 5 3 9 19 Reserved Registers Unless otherwise instructed only a 0 may be written to all reserved registers or bits 5 4 Default Configuration Option The SMSC Hub can be configured via its internal default configuration please see Chapter 3 Pin Configuration 7 Port Hub for specific details on how to enable default configuration Please refer to Table 5 1 on page 19 for the internal default values that are loaded when this option is selected 5 5 Default Strapping Options The SMSC Hub can be configured via a combination of internal default values and pin strap options Please see Table 4 1 7 Port Hub Pin Descriptions for specific details on how to enable the default pin strap configuration option The strapping option pins only cover a limited sub set of the configuration options The internal default values will be used for the bits amp registers that are not controlled by a strapping option pin Please refer to Table 5 1 on page 19 for the internal default values that are loaded when this option is selected The Amber and Green LED pins are sampled after RESET_N negation and the logic values are used to configure the hub if the internal default configuration mode is selected The implementation shown below see Figure 5 1 shows a recommended passive scheme When a pin is configured with a S
45. t M 0 05 S 0 15 Standoff A2 1 35 1 40 1 45 Body Thickness D 13 80 14 00 14 20 X Span D1 11 80 12 00 12 20 X body Size E 13 80 14 00 14 20 Y Span E1 11 80 12 00 12 20 Y body Size H 0 09 S 0 20 Lead Frame Thickness L 0 45 0 60 0 75 Lead Foot Length L1 1 00 REF e Lead Length e 0 50 Basic Lead Pitch q 0 7 Lead Foot Angle W 0 17 0 18 0 27 Lead Width CCC ii ma 0 08 Coplanarity Notes 1 Controlling Unit millimeter 2 Tolerance on the true position of the leads is 0 04 mm maximum 3 Package body dimensions D1 and E1 do not include the mold protrusion Maximum mold protrusion is 0 25 mm per side D1 and E1 dimensions determined at datum plane H 4 Dimension for foot length L measured at the gauge plane 0 25 mm above the seating plane 5 Details of pin 1 identifier are optional but must be located within the zone indicated Revision 2 3 08 27 07 44 DATASHEET SMSC USB2507
46. t N TimingforEEPROMMode 35 Figure 5 4 Reset N Timing for SMBus Mode 36 Figure 9 1 80 Pin TQFP Package Outline 12x12x1 4 mm body 2 mm footprint 44 Revision 2 3 08 27 07 SMSC USB2507 4 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet List of Tables Table 2 1 Table 4 1 Table 4 2 Table 4 3 Table 4 4 Table 4 5 Table 5 1 Table 5 2 Table 5 3 Table 5 4 Table 5 5 Table 5 6 Table 5 7 Table 7 1 Table 9 1 SMSC USB2507 Zort Table wie ad haka o ABA Sheela PED DANG 7 7 Port Hub Pin Descriptions 9 SMBus or EEPROM Interface Behavior 12 Miscellaneous PINS ic ve dae ae aa ia ee en aa ao waa 12 Power Ground and No Connect 13 Buffer Type Descriptions AA 13 User Defined Descriptor Data 19 SMBus Write Byte Protocol 25 SMBus Read Byte Protocol 25 SMBus Slave Interface Register Map 26 Reset N Timing for Default Strap Option Mode 34 Reset N TimingforEEPROMMode 35 Reset N Timing for SMBus Mode 36 DC Elect
47. t5 All Power Supplies must have reached the operating levels mandated in Section Chapter 7 DC Parameters prior to or coincident with the assertion of RESET_N Revision 2 3 08 27 07 34 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet 5 6 1 2 RESET N for EEPROM Configuration Start H Read EEPROM Attach e ataware Read Strap PA SC USB Reset completion reset Options USB recover SS request asserted p Set puna Upstream y q NONA KKK e RE 2 Lu ge EE A baha et RESET_N VSS i emm emm Figure 5 3 Reset N Timing for EEPROM Mode Table 5 6 Reset N Timing for EEPROM Mode NAME DESCRIPTION MIN TYP MAX UNITS ti RESET N Asserted 1 usec t2 Hub Recovery Stabilization 500 usec t3 EEPROM Read Hub Config 2 0 99 5 msec t4 USB Attach See Note 100 msec t5 Host acknowledges attach and signals USB 100 msec Reset t6 USB Idle undefined msec t7 Completion time for requests with or without data 5 msec stage Notes a When in Bus Powered mode the Hub and its associated circuitry must not consume more than 100mA from the upstream USB power source during t4 t5 t6 t7 a All Power Supplies must have reached the operating levels mandated in Section Chapter 7 DC Parameters prior to or coincident with the assertion of RESET N SMSC USB2507 35 Revision 2 3 08 27 07 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt sm
48. terface options When using the internal default option the GANG_EN pin will configure the hub for ganged or individual port by port port power switching Compound Device Allows the OEM to indicate that the Hub is part of a compound see the USB Specification for definition device The applicable port s must also be defined as having a Non Removable Device This field is set by the OEM using either the SMBus or EEPROM interface options Note When configured via strapping options declaring a port as non removable automatically causes the hub controller to report that it is part of a compound device 16 SMSC USB2507 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet 5 1 1 12 5 1 1 13 5 1 1 14 5 1 1 15 5 1 1 16 5 1 1 17 5 1 1 18 SMSC USB2507 ee SMSC Non Removable Device Informs the Host if one of the active ports has a permanent device that is undetachable from the Hub Note The device must provide its own descriptor data This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the NON REM 1 0 pins will designate the appropriate ports as being non removable Self Powered Port DISABLE During Self Powered operation this selects the ports which will be permanently disabled and are not available to be enabled or enumerated by a Host Controller The disabled ports must be contiguous and must be in decreasing order startin
49. to enable or disable the internal 1 8v regulator Internal 1 8V A voltage This pin must be connected to VDDA33 to enable the internal 1 8V regulator or to VSS to disable the internal regulator lat enable regulator When the internal regulator is enabled the 1 8V power pins must be left unconnected except for the required bypass capacitors When the PHY is in test mode the internal regulator is disabled and the ATEST pin functions as a test pin Table 4 4 Power Ground and No Connect NAME SYMBOL TYPE FUNCTION VDDCORE3P3 VDD33CR 3 3V I O Power If the internal core 1 8V regulator is enabled then this pin acts as the regulator input VDD1P8 VDD18 1 8V core power If the internal regulator is enabled then VDD18 pin 50 must have a 4 7 LF or greater 20 ESR 0 102 capacitor to VSS VDDAPLL3P3 VDDA33PLL 3 3V Filtered analog power for the internal PLL If the internal PLL 1 8V regulator is enabled then this pin acts as the regulator input VDDAPLL1P8 VDDA18PLL 1 8V Filtered analog power for internal PLL If the internal regulator is enabled then this pin must have a 4 7UF or greater 2096 ESR 20 10 capacitor to VSS VDDIO3P3 VDD33 3 3V I O power VDDA3P3 VDDA33 3 3V Filtered analog power VSS VSS Ground Table 4 5 Buffer Type Descriptions BUFFER DESCRIPTION Input IPD Input with a weak Internal pull down IPU Input with a weak Internal pull up IS Input with Schmitt trigger 012 Output 12mA SMSC USB2507 13 DAT
50. trap High configuration the LED functions with active low signalling and the PAD will sink the current from the external supply When a pin is configured with a Strap Low configuration the LED functions with active high signalling and the PAD will source the current to the external LED Revision 2 3 08 27 07 SMSC USB2507 32 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt SMSC Datasheet Strap High Strap Low Figure 5 1 LED Strapping Option 5 6 Reset There are two different resets that the Hub experiences One is a hardware reset via the RESET_N pin and the second is a USB Bus Reset 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 operating range While reset is asserted the Hub and its associated external circuitry consumes less than 500yA of current from the upstream USB power source 300uA for the Hub and 200yA for the external circuitry Assertion of RESET N external pin causes the following il NO a F oO N All downstream ports are disabled and PRTPWR power to downstream devices is removed The PHYs are disabled and the differential pairs will be in a high impedance state All transactions immediately terminate no states are saved All internal registers return to the default state in most cases 00 h The external crystal oscillator is halted The PLL is halted L
51. tware uses this value to determine how long to wait before accessing a powered on port This field is set by the OEM using either the SMBus or EEPROM interface options Power Switching Polarity The selection of active state polarity for the PRTPWR 7 1 pins is made by a strapping option only VBus Detect According to Section 7 2 1 of the USB 2 0 Specification a downstream port can never provide power to its D or D pull up resistors unless the upstream port s VBUS is in the asserted powered state The VBUS DET pin on the Hub monitors the state of the upstream VBUS signal and will not pull up the D or D resistor if VBUS is not active If VBUS goes from an active to an inactive state Not Powered Hub will remove power from the D or D pull up resistor within 10 seconds EEPROM Interface The SMSC Hub can be configured via a 2 wire 12C EEPROM Please see Table 4 1 7 Port Hub Pin Descriptions for specific details on how to enable the 12C EEPROM option The Internal state machine will when configured for EEPROM support read the external EEPROM for configuration data The hub will then attach to the upstream USB host Please see Table 5 1 User Defined Descriptor Data for a list of data fields available I2C EEPROM The 12C EEPROM interface implements a subset of the I2C Master Specification Please refer to the Philips Semiconductor Standard DC Bus Specification for details on 2C bus protocols The Hub s I2C
52. ub does not propagate the upstream USB reset to downstream devices 1 Sets default address to O 2 Sets configuration to Unconfigured 3 Negates PRTPWR 7 1 to all downstream ports Revision 2 3 08 27 07 SMSC USB2507 36 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub E gt SMSC Datasheet 4 Clears all TT buffers Moves device from suspended to active if suspended 6 Complies with Section 11 10 of the USB 2 0 Specification for behavior after completion of the reset sequence The Host then configures the Hub and the Hub s downstream port devices in accordance with the USB Specification SMSC USB2507 Revision 2 3 08 27 07 37 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub gt SMSC Datasheet Chapter 6 XNOR Test XNOR continuity tests all signal pins on the Hub every pin except for NC XTAL1 CLKIN XTAL2 ATEST REG EN RBIAS TEST1 Power and Ground This functionality is enabled by driving TEST1 and CFG_SEL 1 high driving SCLK low and transition RESET N from low to high The output from the XNOR chain is driven to GR2 For each pin tested for continuity GR2 should toggle Revision 2 3 08 27 07 SMSC USB2507 38 DATASHEET Integrated USB 2 0 Compatible 7 Port Hub Datasheet Chapter 7 DC Parameters 74 Maximum Guaranteed Ratings ee smsc PARAMETER SYMBOL MIN MAX UNITS COMMENTS Storage TA 55 150 C Temperature Lead 325 C Soldering lt 1
53. ull Speed device only i e High Speed not available This field is set by the OEM using either the SMBus or EEPROM interface options Multiple TT Support Selects between a mode where only one transaction translator is available for all ports Single TT or each port gets a dedicated transaction translator Multi TT Note The host may force Single TT mode only This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the MTT_EN pin enables disables MTT support EOP Disable During FS operation only this permits the Hub to send EOP if no downstream traffic is detected at EOFI See Section 11 3 1 of the USB 2 0 Specification for additional details This field is set by the OEM using either the SMBus or EEPROM interface options Current Sensing Selects current sensing on a port by port basis all ports ganged or none This field can be set by the OEM using either the SMBus or EEPROM interface options When using the internal default option the SELF PWR pin determines if current sensing will be ganged or none ganged if self powered none if bus powered Downstream Port Power Enabling Enables all ports simultaneously ganged or port power is individually switched on and off on a port by port basis The ability to support power enabling on a port or ganged basis is hardware implementation dependent This field is set by the OEM using either the SMBus or EEPROM in
54. vices on the SMBus The Hub does not stretch the SCLK 5 3 6 SMBus Timing The SMBus Slave Interface complies with the SMBus AC Timing Specification See the SMBus timing in the Timing Diagram section 5 3 7 Bus Reset Sequence The SMBus Slave Interface resets and returns to the idle state upon a START field followed immediately by a STOP field 5 3 8 SMBus Alert Response Address The SMBALERT signal is not supported by the Hub 5 3 9 Internal SMBus Memory Register Set The following table provides the SMBus slave interface register map values Table 5 4 SMBus Slave Interface Register Map REG BIT 7 BITO ADDR R W REGISTER NAME ABBR MSB BIT 6 BIT5 BIT4 BIT3 BIT2 BIT1 LSB 00h R W Status Command STCD 7 6 5 4 3 2 1 0 01h R W VID LSB VIDL 7 6 5 4 3 2 1 0 02h R W VID MSB VIDM 7 6 5 4 3 2 1 0 03h R W PID LSB PIDL 7 6 5 4 3 2 1 0 04h R W PID MSB PIDM 7 6 5 4 3 2 1 0 05h R W DID LSB DIDL 7 6 5 4 3 2 1 0 06h R W DID MSB DIDM 7 6 5 4 3 2 1 0 07h R W Config Data Byte 1 CFG1 7 6 5 4 3 2 1 0 08h R W Config Data Byte 2 CFG2 7 6 5 4 3 2 1 0 09h R W Non Removable NRD 7 6 5 4 3 2 1 0 Devices OAh R W Port Disable Self PDS 7 6 5 4 3 2 1 0 0Bh R W Port Disable Bus PDB 7 6 5 4 3 2 1 0 Revision 2 3 08 27 07 26 DATASHEET SMSC USB2507 Integrated USB 2 0 Compatible 7 Port Hub E gt smsc Datasheet Table 5 4 SMBus Slave Interface Register Map continued RE
55. y function when attached to a USB host controller There are three principal ways to configure the hub SMBus EEPROM or by internal default settings In all cases the configuration method will be determined by the CFG SEL1 and CFG SELO pins immediately after RESET N negation Vendor ID Is a 16 bit value that uniquely identifies the Vendor of the user device assigned by USB Interface Forum This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option SMSC s VID see Table 5 1 will be reported Product ID Is a 16 bit value that the Vendor can assign that uniquely identifies this particular product assigned by OEM This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option SMSC s PID designation of see Table 5 1 will be reported Device ID Is a 16 bit device release number in BCD format assigned by OEM This field is set by the OEM using either the SMBus or EEPROM interface options When using the internal default option SMSC s DID designation of see Table 5 1 will be reported Self Powered Bus Powered The Hub is either Self Powered draws less than 2mA of upstream bus power or Bus Powered limited to a 100mA maximum of upstream power prior to being configured by the host controller When configured as a Bus Powered device the SMSC Hub consumes less than 100mA of current prior to being configured After

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