EVB-2502 SMSC, EVB-2502 Datasheet

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... 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 SMSC USB2502 USB2502 2-Port USB 2.0 Hub Controller On-Board 24MHz Crystal Driver Circuit or 24 MHz external clock driver Internal PLL for 480MHz USB 2 ...

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... 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’ ...

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... External Hardware RESET_N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5.6.2 USB Bus Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Chapter 6 XNOR Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Chapter 7 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7.1 Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7.2 Recommended Operating Conditions Chapter 8 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 8.1 Oscillator/Clock 8.1.1 SMBus Interface 8.1.2 I2C EEPROM 8.1.3 USB 2 Chapter 9 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 SMSC USB2502 3 DATASHEET Revision 2.3 (08-27-07) ...

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... Table 5.5 Reset_N Timing for Default/Strap Option Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Table 5.6 Reset_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Table 5.7 Reset_N Timing for SMBus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Table 7.1 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Table 9.1 48 Pin TQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Revision 2.3 (08-27-07) 4 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... Figure 5.2 Reset_N Timing for Default/Strap Option Mode Figure 5.3 Reset_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Figure 5.4 Reset_N Timing for SMBus Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Figure 9.1 36 Pin QFN Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Figure 9.2 48 Pin TQFP Package Outline (7x7x1.4 mm body, 2mm Footprint SMSC USB2502 5 DATASHEET Revision 2.3 (08-27-07) ...

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... Chapter 1 General Description The SMSC 2-Port Hub is fully compliant with the USB 2.0 Specification and will attach to a USB host as a Full-Speed Hub Full-/High-Speed Hub. The 2-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 ...

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... UPSTREAM USB 2.0 INTERFACE (3 PINS) USBDP0 USBDP1 GR1/ NON_REM0 PRTPWR SDA/SMBDATA SCL/SMBCLK/ XTAL1/CLKIN ATEST/ REG_EN SMSC USB2502 Table 2.1 2-Port Pin Table for 36-QFN USBDN0 VBUS_DET 2-PORT USB 2.0 INTERFACE (10 PINS) USBDN1 USBDP2 GR2/ PRTPWR_POL NON_REM1 OCS_N SERIAL PORT INTERFACE (3 PINS) ...

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... Table 2.2 2-Port Pin Table for 48-TQFP USBDN0 VBUS_DET 2-PORT USB 2.0 INTERFACE (10 PINS) USBDN1 USBDP2 GR2/ PRTPWR_POL NON_REM1 OCS_N SERIAL PORT INTERFACE (3 PINS) CFG_SEL1 CFG_SEL0 MISC (7 PINS) XTAL2 RESET_N CLKIN_EN TEST 8 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet USBDN2 RBIAS SELF_PWR SMSC USB2502 ...

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... Chapter 3 Pin Configuration 2-Port Hub VDD33CR 28 VSS 29 XTAL2 30 XTAL1/CLKIN 31 VDDA18PLL 32 VDDA33PLL 33 ATEST/REG_EN 34 RBIAS 35 VSS 36 Indicates pins on the bottom of the device. SMSC USB2502 SMSC 15 USB2502 14 (Top View QFN-36 Thermal Slug 11 (must be connected to VSS) 10 Figure 3.1 2-Port 36-Pin QFN 9 DATASHEET VDD18 VSS SELF_PWR ...

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... Revision 2.3 (08-27-07) Figure 3.2 2-Port 48-Pin TQFP 10 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... UPSTREAM USB 2.0 INTERFACE IO-U These pins connect to the upstream USB bus data signals. I/O8 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 ...

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... Contains internal pull-up to 3.3V supply} A 12.0k Ω ( +/− 1%) resistor is attached from ground to this I-R pin to set the transceiver’s internal bias settings. 12 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet FUNCTION Section 5.6.1) Section 5.6.1), the logic value will SMSC USB2502 ...

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... RESET Input RESET_N Self-Power / SELF_PWR Bus-Power Detect TEST Pin TEST SMSC USB2502 TYPE SERIAL PORT INTERFACE IOSD12 (Serial Data)/(SMB Data) signal. IOSD12 (Serial Clock)/(SMB Clock) signal. This multifunction pin is read on the rising edge of RESET_N (see the applicable RESET_N timing table in ...

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... If the internal regulator is enabled, then this pin must μ have a 4.7 F (or greater) ±20% (ESR <0.1 to VSS +3.3V Filtered analog power. Ground. Table 4.5 Buffer Type Descriptions DESCRIPTION 14 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet FUNCTION FUNCTION Ω) Ω) capacitor SMSC USB2502 ...

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... 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 PHY test requirements. SMSC USB2502 DESCRIPTION 15 DATASHEET Revision 2.3 (08-27-07) ...

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... Hub Configuration Options The SMSC Hub supports a large number of features and must be configured in order to correctly function when attached to a USB host controller. There are three principal ways to configure the hub: SMBus, EEPROM internal default settings. In all cases, the configuration method will be determined by the CFG_SEL1 and CFG_SEL0 pins immediately after RESET_N negation ...

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... Controls the ability of the 2-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 2-port Hub will always switch to Self-Powered operation.} SMSC USB2502 17 DATASHEET Revision 2.3 (08-27-07) ...

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... The VBUS_DET pin on the Hub monitors the state of the upstream VBUS signal and will not pull-up the resistor if VBUS is not active. If VBUS goes from an active to an inactive state (Not Powered), Hub will remove power from the pull-up resistor within 10 seconds. Revision 2.3 (08-27-07) 18 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... USB 2.0 Hub Controller Datasheet 5.2 EEPROM Interface The SMSC Hub can be configured via a 2-wire (I2C) EEPROM. (Please see Pin Descriptions" for specific details on how to enable the I2C EEPROM option). The Internal state-machine will, (when configured for EEPROM support) read the external EEPROM for configuration data. The hub will then “ ...

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... Max Current (expressed in 2mA units Time until power is stable. DESCRIPTION Most Significant Byte of the Vendor ID. Least Significant Byte of the Vendor ID. DESCRIPTION Most Significant Byte of the Product ID. Least Significant Byte of the Product ID. 20 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet DESCRIPTION SMSC USB2502 ...

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... EEPROM Offset 7(h) - CONFIG_BYTE_2 BIT NUMBER BIT NAME 7 DYNAMIC 6 Reserved SMSC USB2502 DESCRIPTION Most Significant Byte of the Device ID. Least Significant Byte of the Device ID. DESCRIPTION Self or Bus Power: Selects between Self- and Bus-Powered operation Bus-Powered operation. (BUS Default Self-Powered operation. (SELF Default) ...

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... Port Disable Bus-Powered: Disables 1 or more contiguous ports. ‘0’ = port is available, ‘1’ = port is disabled. Bit 7:3= 0; Reserved Bit 2= 1; Port 2 is disabled. Bit 1= 1; Port 1 is disabled. Bit 0 is Reserved, always = ‘0’ 22 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... BIT NUMBER BIT NAME 7:0 HC_MAX_C_SP SMSC USB2502 DESCRIPTION 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 ...

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... 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” newly connected device on USB after the code load is complete. The Hub’ ...

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... The only valid registers that are accessible by the SMBus slave address are the registers defined in the Registers Section. See 5.3.3 General Call Address Response The Hub does not respond to a general call address of 0000_000b. SMSC USB2502 Denotes Slave-to-Master Table 5.2 SMBus Write Byte Protocol Wr Ack Reg ...

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... Revision 2.3 (08-27-07) ). TIMEOUT, MAX BIT 7 ABBR (MSB) BIT 6 BIT 5 BIT 4 STCD VIDL VIDM PIDL PIDM DIDL DIDM CFG1 CFG2 NRD PDS PDB DATASHEET 2-Port USB 2.0 Hub Controller Datasheet ). Devices that TIMEOUT, MIN BIT 0 BIT 3 BIT 2 BIT 1 (LSB SMSC USB2502 ...

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... Power-on Time 5.3.9.1 Register 00h: Status/Command (Reset = 0x00) BIT NUMBER BIT NAME 7:3 Reserved 2 RESET 1 WRITE_PROT 0 USB_ATTACH 5.3.9.2 Register 01h: Vendor ID (LSB) (Reset = 0x00) BIT NUMBER BIT NAME 7:0 VID_LSB SMSC USB2502 BIT 7 ABBR (MSB) BIT 6 BIT 5 MAXPS MAXPB HCMCS HCMCB 7 6 ...

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... Self or Bus Power: Selects between Self- and Bus-Powered operation Bus-Powered operation 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. Reserved 28 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... Reserved 5:4 OC_TIMER 3 COMPOUND 2:0 Reserved SMSC USB2502 DESCRIPTION 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 High-/Full-Speed Full-Speed-Only (High-Speed disabled!) Reserved EOP Disable: Disables EOP generation of EOF1 when in Full-Speed mode. ...

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... Note: The USB 2.0 Specification does not permit this value to exceed 100mA A value of 50 (decimal) indicates 100mA. 30 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... Undefined Registers The registers shown in return 00h. Writes to undefined registers have no effect and do not return an error. SMSC USB2502 DESCRIPTION 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 ...

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... Table 5.1 on page 19 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" 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 & ...

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... Table 5.5 Reset_N Timing for Default/Strap Option Mode NAME DESCRIPTION t1 RESET_N Asserted. t2 Strap Setup Time t3 Strap Hold Time. t4 hub outputs driven to inactive logic states t5 USB Attach (See Note). SMSC USB2502 Drive Strap Attach Outputs to USB Reset USB inactive recovery Upstream levels Driven by Hub if strap is an output. Don’ ...

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... USB 2.0 Hub Controller Datasheet TYP MAX UNITS msec undefined msec 5 msec Section Chapter 7, "DC Start completion Idle request response t6 t7 TYP MAX UNITS μ sec μ sec 500 2.0 99.5 msec 100 msec msec undefined msec 5 msec SMSC USB2502 ...

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... For Self-Powered configurations, t3 MAX is not applicable and the time to load the configuration is determined by the external SMBus host. All Power Supplies must have reached the operating levels mandated in Parameters", prior to (or coincident with) the assertion of RESET_N. SMSC USB2502 Attach SMBus Code Hub PHY ...

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... 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. Revision 2.3 (08-27-07) 36 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 ...

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... ATEST/REG_EN, RBIAS, TEST, Power, and Ground). This functionality is enabled by driving TEST 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. SMSC USB2502 37 DATASHEET ...

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... AC power line may appear on the DC output. When this possibility exists suggested that a clamp circuit be used. Revision 2.3 (08-27-07) MAX UNITS 150 °C 325 °C 2.5 4.0 (3.3V supply voltage + 2) ≤ 0.3V DD18 38 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet COMMENTS Soldering < 10 seconds SMSC USB2502 ...

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... Low Input Leakage I IHL High Input Leakage Input Buffer with Pull-Down IPD V Low Input Level V High Input Level I ILL Low Input Leakage I IHL High Input Leakage SMSC USB2502 MIN MAX UNITS 0 70 °C 1.62 1.98 3.0 3.6 -0.3 5.5 -0.3 V DDA33 -0 ...

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... DATASHEET 2-Port USB 2.0 Hub Controller Datasheet COMMENTS V TTL Levels DD33 3.3V OL DD33 -4mA @ 3.3V OH DD33 DD33 (Note 3.3V OL DD33 µ DD33 (Note Total from all supplies Total from all supplies mA mA SMSC USB2502 ...

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... C IN Capacitance Input Capacitance C IN Output Capacitance C OUT 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. SMSC USB2502 MIN TYP MAX UNITS 320 425 uA 160 300 uA = 3.3V DD33CR ...

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... External Clock: 50% Duty cycle ± 10%, 24 MHz ± 100ppm, Jitter < 100 ps 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 8.1.2 I2C EEPROM: Frequency is fixed at 59KHz ± ...

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Chapter 9 Package Outlines TERMINAL #1 IDENTIFIER AREA (D1/2 X E1/2) 0.6(MAX) 0.6(MAX) CHAMFERED CORNERS ARE OPTIONAL 4X TOP VIEW 4X 0°-12° C ccc C 4 SIDE VIEW 3-D VIEWS NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETER. ...

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... Lead Shoulder Radius 0.20 0.08 44 DATASHEET 2-Port USB 2.0 Hub Controller Datasheet REMARKS Standoff Body Thickness X Span X body Size Y Span Y body Size Lead Foot Length Lead Length Lead Pitch Lead Foot Angle Lead Width Lead Foot Radius Coplanarity . SMSC USB2502 ...