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SMSC USB2640, USB2640i 7.3.2.522h-5Dh:USB Manufacturer String Length, 7.3.2.65Eh-99h:USB Product String Length, 7.3.2.79Ah: USB BmAttribute (1 byte)

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Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo

7.3.2.522h-5Dh: USB Manufacturer String Length

BYTE
NUMBER	BYTE NAME	DESCRIPTION

59:0	USB_MFR_STR	Manufacturer String Length
		Maximum string length is 28 characters.
		(See Note 7.2 below)

7.3.2.65Eh-99h: USB Product String Length

BYTE
NUMBER	BYTE NAME	DESCRIPTION

59:0	USB_PRD_STR	Product String Length
		This string will be used during the USB enumeration process in Windows.
		Maximum string length is 28 characters.
		(See Note 7.2 below)

Note 7.2 While the full strings are reported during USB enumeration, Windows XP/Vista reads concatenated version of the strings from the standard SCSI inquiry response when storing the values for display in the Windows registry and device manager.

7.3.2.79Ah: USB BmAttribute (1 byte)

BYTE
NUMBER	BYTE NAME	DESCRIPTION

7:0	USB_BM_ATT	Self- or Bus-Power: Selects between Self- and Bus-Powered operation.
		The hub is either Self-Powered (draws less than 2 mA of upstream bus
		power) or Bus-Powered (limited to a 100 mA 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 100 mA of current prior to being configured. After configuration, the
		Bus-Powered SMSC hub (along with all associated hub circuitry, any
		embedded devices if part of a compound device, and 100 mA per externally
		available downstream port) must consume no more than 500 mA 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, <1 mA of upstream VBUS
		current is consumed and all ports are available, with each port being capable
		of sourcing 500 mA of current.
		80 = Bus-Powered operation
		c0 = Self-Powered operation
		A0 = Bus-Powered operation with remote wake-up
		E0 = Self-Powered operation with remote wake-up

SMSC USB2640/USB2641	31	Revision 2.0 (10-03-08)
	DATASHEET

Contents

USB2640/USB2641 Ultra Fast USB 2.0 Multi-Format Flash Media Controller/USB Hub Combo Datasheet Page Table of Contents Page List of Tables List of Figures Chapter 1 Overview 1.1Device Features 1.2OEM Selectable Features Chapter 2 Acronyms Chapter 3 Pin Configurations Figure 3.2 USB2641 48-PinQFN Chapter 4 Pin Tables 4.148-PinTables Table 4.2 USB2641 48-PinTable SECURE DIGITAL / MEMORY STICKINTERFACE (14 PINS) DIGITAL POWER, NO CONNECTS (9 PINS) Diagrams Block 5 Chapter Page Chapter 6 Pin Descriptions 6.1USB2640/USB2641 Pin Descriptions Table 6.1 USB2640/USB2641 Pin Descriptions (continued) MEMORY STICK INTERFACE SECURE DIGITAL / MULTIMEDIACARD INTERFACE USB INTERFACE Note: SPI INTERFACE Page MISC DIGITAL / POWER / GROUND 6.2Buffer Type Descriptions 6.3Port Power Control USB2640 USB2641 6.4ROM BOOT Sequence Chapter 7 Configuration Options 7.1Hub 7.1.1.1Power Switching Polarity 7.2Card Reader 7.3System Configurations 7.3.2EEPROM Data Descriptor Table Internal Flash Media Controller Configurations REG ADDR REGISTER NAME Table 7.1 Internal Flash Media Controller Configurations (continued) Table 7.2 Hub Controller Configurations 7.3.2.10h-19h:USB Serial Number Option 7.3.2.21Ah-1Bh:USB Vendor ID Option 7.3.2.31Ch-1Dh:USB Product ID Option 7.3.2.41Eh-21h:USB Language Identifier Option 7.3.2.522h-5Dh:USB Manufacturer String Length 7.3.2.65Eh-99h:USB Product String Length 7.3.2.79Ah: USB BmAttribute (1 byte) 7.3.2.89Bh: USB MaxPower (1 byte) 7.3.2.99Ch-9Fh:Attribute Byte Descriptions 7.3.2.10A4h-A5h:LUN Power Configuration 7.3.2.11A8h: LED Blink Interval (1 byte) 7.3.2.12A9h: Blink Duration (1 byte) 7.3.3.1AAh-B0h:Lun 0 Identifier String 7.3.3.2B1h-B7h:Lun 1 Identifier String 7.3.3.3B8h-BEh:Lun 2 Identifier String 7.3.3.4BFh-C5h:Lun 3 Identifier String 7.3.3.5C6h-CDh:Inquiry Vendor String 7.3.3.6CEh-D2h:Inquiry Product String 7.3.3.7D3h: Dynamic Number of Luns 7.3.3.8D4h-D7h:Lun to Device Mapping 7.3.3.9D8h-DAh:Reserved 7.3.3.10DBh-DDh:Reserved 7.3.3.11DEh: Vendor ID (LSB) 7.3.3.12DFh: Vendor ID (MSB) 7.3.3.13E0h: Product ID (LSB) 7.3.3.14E1h: Product ID (MSB) 7.3.3.15E2h: Device ID (LSB) 7.3.3.16E3h: Device ID (MSB) 7.3.3.17E4h: Config Data Byte 1 (CFG_DAT_BYT1) 7.3.3.18E5h: Config Data Byte 2 (CFG_DAT_BYT2) 7.3.3.19E6h: Config Data Byte 3 (CFG_DAT_BYT3) 7.3.3.20E7h: Non-RemovableDevice 7.3.3.21E8h: Port Disable For Self-PoweredOperation 7.3.3.22E9h: Port Disable For Bus-PoweredOperation 7.3.3.23EAh: Max Power For Self-PoweredOperation 7.3.3.24EBh: Max Power For Bus-PoweredOperation 7.3.3.25ECh: Hub Controller Max Current For Self-PoweredOperation 7.3.3.26EDh: Hub Controller Max Current For Bus-PoweredOperation 7.3.3.27EEh: Power-OnTime 7.3.3.28EFh: Boost_Up 7.3.3.29F0h: Boost_3:0 7.3.3.30F1h: Port Swap 7.3.3.31F2h: Port Remap 7.3.3.32F3h: Port Remap 7.3.3.33F4h: MS/SD Clock Limit 7.3.3.34F5h: Reserved 7.3.3.35F6h: Reserved FCh-FFh: 7.3.4.1Implementation Characteristics 7.4Default Configuration Option: 7.5Reset 7.5.2.1RESET_N for EEPROM Configuration Chapter 8 Pin Reset States 8.1Pin Reset States Table 8.2 USB2640 Pin Reset States (continued) Table 8.3 USB2641 Pin Reset States Table 8.3 USB2641 Pin Reset States (continued) Chapter 9 DC Parameters 9.1Maximum Guaranteed Ratings 9.2Operating Conditions 9.3DC Electrical Characteristics Input Leakage O12 Type Buffer I/O12, I/O12PU & I/O12PD Type Buffer IO-U 9.4Capacitance Chapter 10 AC Specifications 10.1Oscillator/Clock (C1 + CS1) x (C2 + CS2) CL (C1 + CS1 + C2 + CS2) Chapter 11 Package Outline Chapter 12 GPIO Usage