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SMSC USB2512B, USB2513B, USB2514B, USB2517 7.3Battery Charging Configuration, 7.3.1Battery Charging enabled via EEPROM or SMBus

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USB 2.0 Hi-Speed Hub Controller

Datasheet

behaviors provide battery charging even when the hub is not enumerated and protect the hub from sustained short circuit conditions. If the short circuit condition persists when the hub is plugged into a host system the user is notified that a port has an over-current condition. Otherwise the PRTPWR is turned on by the host system and the port operates normally.

7.3Battery Charging Configuration

Configuration of ports to support battery charging is done through a strap option on the corresponding ports PRTPWR[x] / BC_EN[x] pin. see Chapter 5, Pin Descriptions, or through EEPROM or SMBus configuration load.

7.3.1Battery Charging enabled via EEPROM or SMBus

Register memory map location 0xD0 is allocated for battery charging support. The "Battery Charging" register at location 0xD0 starting from Bit 1 enables battery charging for each downstream port when asserted. Bit 1 represents port 1 and so on. Each port with battery charging enabled asserts the corresponding PRTPWR[x:0] pin.

Revision 1.0 (3-11-09)

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SMSC USB251x

DATASHEET

Contents

USB2512/12A/12B USB2513/13B USB2514/14B USB2517 PRODUCT FEATURES USB2512-AEZG USB2512A-AEZG USB2512B-AEZG USB2513-AEZG USB2513B-AEZG Table of Contents Page List of Tables List of Figures Chapter 1 USB251x Hub Family Differences Overview Chapter 2 General Description OEM Selectable Features „Supports custom string descriptors (up to 31 characters): „When available, pin selectable options for default configuration may include: Chapter 3 Acronyms Chapter 4 Block Diagram Serial Interface Detect Repeater Chapter 5 Pin Descriptions 5.1Pin Configurations and Lists (Organized by Package Type) USB2512i/12Ai/12Bi (Top View QFN-36) USB2513/13i USB2513B/13Bi (Top View QFN-36) Figure 5.2 3-Port 36-pinQFN USB2514/14i USB2514B/14Bi USB2513 (Top View QFN-48) USB2514 (Top View QFN-64) Pin List in Alphabetical Order PIN NUMBERS 36 QFN 48QFN BC_EN[1] Battery BC_EN[2] Option BC_EN[3] Table 5.1 Pin List in Alphabetical Order (continued) USB2514B USB2514Bi Page USB2513B USB2513Bi 5.2USB251x Pin Descriptions (Grouped by Function) Table 5.2 USB251x Pin Descriptions (continued) DOWNSTREAM USB 2.0 INTERFACES (continued) Warning: SERIAL PORT INTERFACES MISC 5.3Buffer Type Descriptions Table 5.3 Buffer Type Descriptions (continued) Chapter 6 LED Usage Description 6.1LED Functionality 6.1.1USB Mode 14-Wire 6.1.2LED Mode Speed Indication Page Chapter 7 Battery Charging Support 7.1General Description USB251xB/xBi 7.2USB Battery Charging 7.2.1Special Behavior of PRTPWR Pins 7.3Battery Charging Configuration 7.3.1Battery Charging enabled via EEPROM or SMBus Chapter 8 Configuration Options 8.1Hub 8.1.1Hub Configuration Options 8.1.2SMBus or EEPROM Interface 8.1.2.1Power Switching Polarity 8.2EEPROM Interface 8.2.1Internal Register Set (Common to EEPROM and SMBus) 8.2.1.1Register 00h: Vendor ID (LSB) 8.2.1.2Register 01h: Vendor ID (MSB) Register 02h: Product ID (LSB) 8.2.1.4Register 03h: Product ID (MSB) 8.2.1.5Register 04h: Device ID (LSB) 8.2.1.6Register 05h: Device ID (MSB) 8.2.1.7Register 06h: CONFIG_BYTE_1 8.2.1.8Register 07h: Configuration Data Byte 8.2.1.9Register 08h: Configuration Data Byte 8.2.1.10Register 09h: Non-RemovableDevice Register 0Ah: Port Disable For Self-PoweredOperation 8.2.1.12Register 0Bh: Port Disable For Bus-PoweredOperation 8.2.1.13Register 0Ch: Max Power For Self-PoweredOperation 8.2.1.14Register 0Dh: Max Power For Bus-PoweredOperation 8.2.1.15Register 0Eh: Hub Controller Max Current For Self-PoweredOperation 8.2.1.16Register 0Fh: Hub Controller Max Current For Bus-PoweredOperation 8.2.1.17Register 10h: Power-OnTime Register 11h: Language ID High Register 12h: Language ID Low Register 13h: Manufacturer String Length 8.2.1.22Register 15h: Serial String Length 8.2.1.23Register 16h-53h:Manufacturer String 8.2.1.24Register 54h-91h:Product String Register 92h-CFh:Serial String 8.2.1.26Register D0h: Battery Charging Enable 8.2.1.27Register F6h: Boost_Up 8.2.1.28Register F7h: Boost_7:5 Register F8h: Boost_4:0 8.2.1.30Register FAh: Port Swap 8.2.1.31Register FBh: PortMap Page Page Page 8.2.2I2C EEPROM 8.2.2.1Implementation Characteristics 8.2.2.2Pull-UpResistor 8.2.2.3I2C EEPROM Slave Address 8.2.3In-CircuitEEPROM Programming 8.3SMBus Slave Interface 8.3.1SMBus Slave Addresses 8.3.2Bus Protocols 8.3.2.1Block Read/Write 8.3.2.2Block Read 8.3.3Invalid Protocol Response Behavior 8.3.4General Call Address Response 8.3.5Slave Device Time-Out 8.3.6Stretching the SCLK Signal 8.3.7SMBus Timing 8.4Default Configuration Option: 8.5Default Strapping Options: 8.6Reset 8.6.1External Hardware RESET_N 8.6.1.1RESET_N for Strapping Option Configuration 8.6.1.2RESET_N for EEPROM Configuration 8.6.1.3RESET_N for SMBus Slave Configuration 8.6.2USB Bus Reset Page Chapter 9 DC Parameters 9.1Maximum Guaranteed Ratings 9.2Operating Conditions Figure 9.1 Supply Rise Time Model Table 9.1 DC Electrical Characteristics I, IS Type Input Buffer Input Buffer with Pull-Up(IPU) Input Buffer with Pull-Down(IPD) DC Electrical Characteristics (continued) O12, I/O12 &I/OSD12 Type Buffer IO-U Supply Current Unconfigured Table 9.1 DC Electrical Characteristics (continued) There is no Full-SpeedHost, each additional additional current for additional ports Supply Current Suspend Supply Current Reset Table 9.2 Pin Capacitance LIMITS UNIT TEST CONDITION Chapter 10 AC Specifications 10.1Oscillator/Clock XTAL1 1 Meg XTAL2 Chapter 11 Package Outlines Figure 11.2 48-PinQFN, 7x7 mm Body, 0.5 mm Pitch Figure 11.3 64-PinQFN, 9x9 mm Body, 0.5 mm Pitch 11.1Tape and Reel Specifications Page Figure 11.6 36-Pinand 48-PinPackage Reel Specifications