SMSC USB2504, USB2504A 38

Integrated USB 2.0 Compatible 4-Port Hub

Datasheet

5.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.

Revision 2.3 (08-27-07)	38	SMSC USB2504/USB2504A
	DATASHEET

Contents

USB2504 USB2504A Integrated USB Compatible 4-PortHub PRODUCT FEATURES ORDER NUMBERS: Table of Contents Chapter Page List of Figures List of Tables Chapter 1 General Description 1.1OEM Selectable Features Chapter 2 Pin Table 4-Port Chapter 3 Pin Configuration 4-PortHub Chapter 4 4-PortHub Block Diagram Page Page Page Page Page Chapter 5 Functional Block Description 5.14-PortHub 5.1.1Hub Configuration Options 5.1.1.5Port Indicators 5.1.1.6High-SpeedDisable 5.1.1.7Multiple-TTSupport 5.1.1.8EOP Disable 5.1.1.9Current Sensing 5.1.1.12Non-RemovableDevice 5.1.1.13Self-PoweredPort DISABLE 5.1.1.14Bus-PoweredPort DISABLE 5.1.1.15Dynamic Power 5.1.1.16Over-CurrentTimer 5.2EEPROM Interface 5.2.1I2C EEPROM 5.2.2In-CircuitEEPROM Programming 5.2.3EEPROM DATA EEPROM Offset 1:0(h) - Vendor ID 5.2.3.2EEPROM Offset 3:2(h) - Product ID 5.2.3.3EEPROM 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 EEPROM 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) Register 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) 5.4Default Configuration Option: 5.5Default Strapping Options: 5.6Reset 5.6.1External Hardware RESET_N 5.6.1.1RESET_N for Strapping Option Configuration 5.6.1.2RESET_N for EEPROM Configuration 5.6.1.3RESET_N for SMBus Slave Configuration 5.6.2USB Bus Reset Page Chapter 6 Backward Compatibility to the USB20H04 6.1Internal 1.8V regulator 6.2Configuration by Internal Defaults 6.3Configuration by SMBus 6.4PRTPWR_POL Chapter 7 XNOR Test Chapter 8 DC Parameters 8.1Maximum Guaranteed Ratings 8.2Recommended Operating Conditions Page Page Chapter 9 AC Specifications 9.1Oscillator/Clock 9.1.1SMBus Interface: 9.1.2I2C EEPROM: 9.1.3USB Chapter 10 Package Outline