SMSC USB2502 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

2-Port USB 2.0 Hub Controller

Datasheet
5.2.3.3	EEPROM Offset 5:4(h) - Device ID
BIT
NUMBER	BIT NAME	DESCRIPTION
15:8	DID_MSB	Most Significant Byte of the Device ID.
7:0	DID_LSB	Least Significant Byte of the Device ID.

5.2.3.4EEPROM Offset 6(h) - CONFIG_BYTE_1

BIT
NUMBER	BIT NAME		DESCRIPTION
7	SELF_BUS_PWR	Self or Bus Power: Selects between Self- and Bus-Powered operation.
		0	= Bus-Powered operation. (BUS Default)
		1	= Self-Powered operation. (SELF Default)
		Note: If Dynamic Power Switching is enabled, this bit is ignored and the
		SELF_PWR pin is used to determine if the hub is operating from self or bus
		power.
6	Reserved	Reserved
5	HS_DISABLE	High Speed Disable: Disables the capability to attach as either a High/Full-
		speed device, and forces attachment as Full-speed only i.e. (no High-Speed
		support).
		0	= High-/Full-Speed. (Default)
		1	= Full-Speed-Only (High-Speed disabled!)
4	Reserved	Reserved
3	EOP_DISABLE	EOP Disable: Disables EOP generation at EOF1 when no downstream
		directed traffic is in progress.
		0	= EOP generation at EOF1 is enabled.
		1	= EOP generation at EOF1 is disabled, (normal operation). (Default)
2:1	CURRENT_SNS	Over Current Sense: Indicates whether current sensing is ganged.
		00 = Ganged sensing (all ports together). (Default for self-power)
		01 = Reserved
		1x = Over current sensing not supported. (may be used with Bus-Powered
		configurations only!, and is the default for bus-power)
0	Reserved	Reserved

5.2.3.5EEPROM Offset 7(h) - CONFIG_BYTE_2

BIT
NUMBER	BIT NAME		DESCRIPTION
7	DYNAMIC	Dynamic Power Enable: Controls the ability for the Hub to transition to Bus-
		Powered operation if the local power source is removed (can revert back to
		Self-Power if local power source is restored).
		0	= No Dynamic auto-switching.
		1	= Dynamic Auto-switching capable.(Default)
6	Reserved	Reserved

SMSC USB2502	21	Revision 2.3 (08-27-07)
	DATASHEET