LAN9220 datasheet(81/150 Pages) SMSC

Part #	LAN9220

Description	16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support

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Manufacturer	SMSC [SMSC Corporation]

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16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support

Datasheet

SMSC LAN9220

81

Revision 2.6 (12-04-08)

DATASHEET

4

IRQ Polarity (IRQ_POL) – When cleared, enables the IRQ line to

function as an active low output. When set, the IRQ output is active high.

When IRQ is configured as an open-drain output this field is ignored,

and the interrupt output is always active low.

R/W

NASR

0

3-1

Reserved

RO

-

0

IRQ Buffer Type (IRQ_TYPE) – When cleared, enables IRQ to function

as an open-drain buffer for use in a Wired-Or Interrupt configuration.

When set, the IRQ output is a Push-Pull driver. When configured as an

open-drain output the IRQ_POL field is ignored, and the interrupt output

is always active low.

R/W

NASR

0

BITS

DESCRIPTION

TYPE

DEFAULT

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