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SMSC USB2514 4.3EEPROM Interface, 4.3.1Internal Register Set (Common to EEPROM and SMBus), REG, R/W, ADDR, ABBR, Note:, VALUES, INTERNAL, SMBUS AND, EEPROM POR, DEFAULT ROM

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USB 2.0 High-Speed 4-Port Hub Controller

Datasheet

4.3EEPROM Interface

The SMSC Hub can be configured via a 2-wire (I2C) EEPROM (256x8). (Please see Table 3.1 for specific details on how to enable configuration via an I2C EEPROM).

The Internal state-machine will (when configured for EEPROM support) read the external EEPROM for configuration data. The hub will then “attach” to the upstream USB host.

Note: The Hub does not have the capacity to write, or “Program,” an external EEPROM. The Hub only has the capability to read external EEPROMs. The external eeprom will be read (even if it is blank or non-populated), and the hub will be “configured” with the values that are read.

Please see Internal Register Set (Common to EEPROM and SMBus) for a list of data fields available.

4.3.1Internal Register Set (Common to EEPROM and SMBus)

Table 4.2 Internal Default, EEPROM and SMBus Register Memory Map

					SMBUS AND
REG				INTERNAL	EEPROM POR
ADDR	R/W	REGISTER NAME	ABBR	DEFAULT ROM	VALUES

00h	R/W	VID LSB	VIDL	24h	0x00

01h	R/W	VID MSB	VIDM	04h	0x00

02h	R/W	PID LSB	PIDL	14h	0x00

03h	R/W	PID MSB	PIDM	25h	0x00

04h	R/W	DID LSB	DIDL	00h	0x00

05h	R/W	DID MSB	DIDM	00h	0x00

06h	R/W	Config Data Byte 1	CFG1	9Bh	0x00

07h	R/W	Config Data Byte 2	CFG2	10h	0x00

08h	R/W	Config Data Byte 3	CFG3	00h	0x00

09h	R/W	Non-Removable Devices	NRD	00h	0x00

0Ah	R/W	Port Disable (Self)	PDS	00h	0x00

0Bh	R/W	Port Disable (Bus)	PDB	00h	0x00

0Ch	R/W	Max Power (Self)	MAXPS	01h	0x00

0Dh	R/W	Max Power (Bus)	MAXPB	64h	0x00

0Eh	R/W	Hub Controller Max Current	HCMCS	01h	0x00
		(Self)

0Fh	R/W	Hub Controller Max Current	HCMCB	64h	0x00
		(Bus)

10h	R/W	Power-on Time	PWRT	32h	0x00

11h	R/W	LANG_ID_H	LANGIDH	00h	0x00

12h	R/W	LANG_ID_L	LANGIDL	00h	0x00

13h	R/W	MFR_STR_LEN	MFRSL	00h	0x00

14h	R/W	PRD_STR_LEN	PRDSL	00h	0x00

SMSC USB2514	19	Revision 1.98 (11-19-07)
	DATASHEET

Contents

USB2514 USB 2.0 High-Speed 4-Port Hub Controller PRODUCT FEATURES General Description ORDER NUMBERS: Table of Contents Chapter List of Figures List of Tables Chapter 1 Pin Configuration Figure 1.2 USB2514 48-PinQFN Chapter 2 Block Diagram PLL Bus-Power Upstream Detect/VBUS Chapter 3 Pin Descriptions 3.1PIN Descriptions Table 3.1 USB2514 Pin Descriptions (continued) Note: SERIAL PORT INTERFACE MISC Page Table 3.2 SMBus or EEPROM Interface Behavior CFG_SEL2 CFG_SEL1 CFG_SEL0 SMBUS OR EEPROM INTERFACE BEHAVIOR 3.2Buffer Type Descriptions Table 3.4 USB2514 Buffer Type Descriptions (continued) Chapter 4 Configuration Options 4.14-PortHub 4.1.1Hub Configuration Options 4.1.1.1Power Switching Polarity 4.1.2VBus Detect 4.3EEPROM Interface 4.3.1Internal Register Set (Common to EEPROM and SMBus) 4.3.1.1Register 00h: Vendor ID (LSB) 4.3.1.2Register 01h: Vendor ID (MSB) Register 02h: Product ID (LSB) 4.3.1.4Register 03h: Product ID (MSB) 4.3.1.5Register 04h: Device ID (LSB) 4.3.1.6Register 05h: Device ID (MSB) 4.3.1.7Register 06h: CONFIG_BYTE_1 4.3.1.8Register 07h: Configuration Data Byte 4.3.1.9Register 08h: Configuration Data Byte 4.3.1.10Register 09h: Non-RemovableDevice 4.3.1.11Register 0Ah: Port Disable For Self Powered Operation 4.3.1.12Register 0Bh: Port Disable For Bus Powered Operation 4.3.1.13Register 0Ch: Max Power For Self Powered Operation 4.3.1.14Register 0Dh: Max Power For Bus Powered Operation 4.3.1.15Register 0Eh: Hub Controller Max Current For Self Powered Operation 4.3.1.16Register 0Fh: Hub Controller Max Current For Bus Powered Operation 4.3.1.17Register 10h: Power-OnTime 4.3.1.18Register 11h: Language ID High 4.3.1.19Register 12h: Language ID Low 4.3.1.20Register 13h: Manufacturer String Length 4.3.1.21Register 14h: Product String Length 4.3.1.22Register 15h: Serial String Length 4.3.1.23Register 16h-53h:Manufacturer String 4.3.1.24Register 54h-91h:Product String Register 92h-CFh:Serial String 4.3.1.26Register F6h: Boost_Up 4.3.1.27Register F8h: Boost_4:0 Register FAh: Port Swap 4.3.1.29Register FBh: Port Remap 4.3.1.30Register FCh: Port Remap Table 4.4 Port Remap Register for Ports 3 & 4.3.1.31Register FFh: Status/Command 4.3.2 I2C EEPROM 4.3.2.1Implementation Characteristics 4.3.2.2Pull-UpResistor 4.3.2.3I2C EEPROM Slave Address 4.3.3In-CircuitEEPROM Programming 4.4SMBus Slave Interface 4.4.1Bus Protocols 4.4.1.1Block Read/Write Slave Address Register Address 4.4.2Invalid Protocol Response Behavior 4.4.3General Call Address Response 4.4.4Slave Device Time-Out 4.4.5Stretching the SCLK Signal 4.4.6SMBus Timing 4.5Default Configuration Option: 4.6Default Strapping Options: 4.7Reset 4.7.1Internal POR Hardware Reset 4.7.2External Hardware RESET_N 4.7.2.1RESET_N for Strapping Option Configuration 4.7.2.2RESET_N for EEPROM Configuration 4.7.2.3RESET_N for SMBus Slave Configuration 4.7.3USB Bus Reset Page Chapter 5 DC Parameters 5.1Maximum Guaranteed Ratings 5.2Recommended Operating Conditions Table DC Electrical Characteristics I, IS Type Input Buffer Input Buffer with Pull-Up (IPU) Table 5.1 DC Electrical Characteristics (continued) IO-U Note CAPACITANCE TA = 25°C; fc = 1MHz; VDD18, VDDPLL Chapter 6 AC Specifications 6.1Oscillator/Clock 6.1.1SMBus Interface: 6.1.2I2C EEPROM: 6.1.3USB Chapter 7 Package Outlines Figure 7.2 48-PinQFN, 7x7mm Body, 0.5mm Pitch