SMSC LAN9512 manual 10

					USB Hub with Integrated 10/100 Ethernet Controller
						Datasheet
			Table 2.1 EEPROM Pins
NUM				BUFFER
PINS	NAME	SYMBOL		TYPE		DESCRIPTION
1	EEPROM Data	EEDI		IS	This pin is driven by the EEDO output of the
	In			(PD)	external EEPROM.
1	EEPROM Data	EEDO		O8	This pin drives the EEDI input of the external
	Out				EEPROM.
1	EEPROM Chip	EECS		O8	This pin drives the chip select output of the external
	Select				EEPROM.
1	EEPROM Clock	EECLK		O8	This pin drives the EEPROM clock of the external
					EEPROM.
			Table 2.2 JTAG Pins
NUM				BUFFER
PINS	NAME	SYMBOL		TYPE		DESCRIPTION
	JTAG Test Port	nTRST		IS	This active low pin functions as the JTAG test port
1	Reset				reset input.
					Note:	This pin should be tied high if it is not
						used.
1	JTAG Test	TMS		IS	This pin functions as the JTAG test mode select.
	Mode Select
1	JTAG Test Data	TDI		IS	This pin functions as the JTAG data input.
	Input
1	JTAG Test Data	TDO		O12	This pin functions as the JTAG data output.
	Out
	JTAG Test	TCK		IS	This pin functions as the JTAG test clock. The
1	Clock				maximum operating frequency of this clock is
					25MHz.
		Table 2.3 Miscellaneous Pins
NUM				BUFFER
PINS	NAME	SYMBOL		TYPE		DESCRIPTION
	System Reset	nRESET		IS	This active low pin allows external hardware to
1					reset the device.
					Note:	This pin should be tied high if it is not
						used.
	Ethernet	nFDX_LED		OD12	This pin is driven low (LED on) when the Ethernet
	Full-Duplex			(PU)	link is operating in full-duplex mode.
1	Indicator LED
	General	GPIO0		IS/O12/	This General Purpose I/O pin is fully programmable
	Purpose I/O 0			OD12	as either a push-pull output, an open-drain output,
				(PU)	or a Schmitt-triggered input.

Revision 1.0 (04-20-09)	10	SMSC LAN9512
	DATASHEET