SMSC LAN9420, LAN9420i 2.1Pin List, NUM, PINS, NAME, TYPE, Note:, Note:, Note:, Note:, Note:, BUFFER, SYMBOL, PCI Stop, PCI Reset, PCI IDSEL, PCI Grant, PCI Parity, DESCRIPTION

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

2.1Pin List

Table 2.1 PCI Bus Interface Pins

NUM			BUFFER
PINS	NAME	SYMBOL	TYPE		DESCRIPTION
1	PCI Clock In	PCICLK	IS	PCI Clock In: 0 to 33MHz PCI Clock Input.
1	PCI Frame	nFRAME	IPCI/	PCI Cycle Frame
			OPCI
32	PCI Address	AD[31:0]	IPCI/	PCI Address and Data Bus
	and Data Bus		OPCI
1	PCI Reset	PCInRST	IS	PCI Reset
4	PCI Bus	nCBE[3:0]	IPCI/	PCI Bus Command and Byte Enables
	Command and		OPCI
	Byte Enables
1	PCI Initiator	nIRDY	IPCI/	PCI Initiator Ready
	Ready		OPCI
1	PCI Target	nTRDY	IPCI/	PCI Target Ready
	Ready		OPCI
1	PCI Stop	nSTOP	IPCI/	PCI Stop
			OPCI
1	PCI Device	nDEVSEL	IPCI/	PCI Device Select
	Select		OPCI
1	PCI Parity	PAR	IPCI/	PCI Parity
			OPCI
1	PCI Parity	nPERR	IPCI/	PCI Parity Error
	Error		OPCI
1	PCI System	nSERR	IPCI/	PCI System Error
	Error		OPCI
1	PCI Interrupt	nINT	OPCI	PCI Interrupt
				Note:	This pin is an open drain output.
1	PCI IDSEL	IDSEL	IPCI	PCI IDSEL
1	PCI Request	nREQ	OPCI	PCI Request
				Note:	This pin is a tri-state output.
1	PCI Grant	nGNT	IPCI	PCI Grant
1	PCI Power	nPME	OPCI	PCI Power Management Event
	Management			Note:	This pin is an open drain output.
	Event
1	Power Good	PWRGOOD	IS	PCI Bus Power Good: This pin is used to sense the
			(PD)	presence of PCI bus power during the D3 power
				management state.
				Note:	This pin is pulled low through an internal pull-
					down resistor
1	VAUX Detection	VAUXDET	IS	PCI Auxiliary Voltage Sense: This pin is used to sense
			(PD)	the presence of a 3.3V auxiliary supply in order to define
				the PME support available.
				Note:	This pin is pulled low through an internal pull-
					down resistor

Revision 1.22 (09-25-08)	16	SMSC LAN9420/LAN9420i
	DATASHEET