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SMSC USB2502 List of Figures

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2-Port USB 2.0 Hub Controller

Datasheet

List of Figures

Figure 3.1 2-Port36-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 3.2 2-Port48-Pin TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 4.1 2-Port Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 5.1 LED Strapping Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Figure 5.2 Reset_N Timing for Default/Strap Option Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 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) . . . . . . . . . . . . . . . . . . . 44

SMSC USB2502

5

Revision 2.3 (08-27-07)

 

DATASHEET

 

Contents
USB2502 2-PortUSB 2.0 Hub Controller PRODUCT FEATURES ORDER NUMBERS: Table of Contents Chapter List of Tables List of Figures Chapter 1 General Description 1.1OEM Selectable Features Chapter 2 Pin Table 2-Port Page Chapter 3 Pin Configuration 2-PortHub Page Chapter 4 2-PortHub Block Diagram Page Page Page Page Chapter 5 Functional Block Description 5.12-PortHub 5.1.1Hub Configuration Options 5.1.1.5High-SpeedDisable 5.1.1.6EOP Disable 5.1.1.7Current Sensing 5.1.1.8Compound Device 5.1.1.9Non-RemovableDevice 5.1.2VBus Detect 5.2EEPROM Interface 5.2.1I2C EEPROM 5.2.2In-CircuitEEPROM Programming 5.2.3EEPROM DATA 5.2.3.1EEPROM Offset 1:0(h) - Vendor ID 5.2.3.2EEPROM Offset 3:2(h) - Product ID EEPROM Offset 5:4(h) - Device ID 5.2.3.4EEPROM Offset 6(h) - CONFIG_BYTE_1 5.2.3.5EEPROM Offset 7(h) - CONFIG_BYTE_2 5.2.3.6EEPROM Offset 8(h) - Non-RemovableDevice 5.2.3.7EEPROM Offset 9(h) - Port Disable For Self Powered Operation 5.2.3.8EEPROM Offset A(h) - Port Disable For Bus Powered Operation 5.2.3.9EEPROM Offset B(h) - Max Power For Self Powered Operation 5.2.3.10EEPROM Offset C(h) - Max Power For Bus Powered Operation EEPROM Offset D(h) - Hub Controller Max Current For Self Powered Operation 5.3SMBus Slave Interface 5.3.1Bus Protocols 5.3.2Invalid Protocol Response Behavior 5.3.3General Call Address Response 5.3.4Slave Device Time-Out 5.3.5Stretching the SCLK Signal 5.3.6SMBus Timing 5.3.7Bus Reset Sequence 5.3.8SMBus Alert Response Address 5.3.9.1Register 00h: Status/Command (Reset = 0x00) 5.3.9.2Register 01h: Vendor ID (LSB) (Reset = 0x00) Register 02h: Vendor ID (MSB) (Reset = 0x00) Register 03h: Product ID (LSB) (Reset = 0x00) Register 04h: Product ID (MSB) (Reset = 0x00) Register 05h: Device ID (LSB) (Reset = 0x00) Register 06h: Device ID (MSB) (Reset = 0x00) 5.3.9.9Register 08h: Configuration Data Byte 2 (Reset = 0x00) 5.3.9.10Register 09h: Non-RemovableDevice (Reset = 0x00) 5.3.9.11Register 0Ah: Port Disable For Self Powered Operation (Reset = 0x00) 5.3.9.12Register 0Bh: Port Disable For Bus Powered Operation (Reset = 0x00) 5.3.9.13Register 0Ch: Max Power For Self Powered Operation (Reset = 0x00) 5.3.9.14Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x00) 5.3.9.17Register 10h: Power-OnTime (Reset = 0x00) 5.3.9.18Undefined Registers 5.4Default Configuration Option: 5.5Default Strapping Options: 5.6Reset 5.6.1External Hardware RESET_N 5.6.1.2RESET_N for EEPROM Configuration 5.6.1.3RESET_N for SMBus Slave Configuration 5.6.2USB Bus Reset Chapter 6 XNOR Test Chapter 7 DC Parameters 7.1Maximum Guaranteed Ratings 7.2Recommended Operating Conditions Page Page Chapter 8 AC Specifications 8.1Oscillator/Clock 8.1.1SMBus Interface: 8.1.2I2C EEPROM: 8.1.3USB Chapter 9 Package Outlines