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Advanced I/O Controller with Motherboard GLUE Logic

Datasheet

Table 3.4 - Default State of Pins

SIGNAL NAME

REF5V_STBY

REF5V

CLOCKI

CLOCKI32

nIO_PME

PCI_CLK

nLPCPD

nPCI_RESET

SER_IRQ

nLDRQ

nLFRAME

LAD[0:3]

nDSKCHG

nHDSEL

nRDATA

nWRTPRT

nTRK0

nWGATE

nWDATA

nSTEP

nDIR

nDS0

nMTR0

nINDEX

DRVDEN0

DRVDEN1

nDCD1

nDSR1

RXD1

nRTS1

TXD1

nCTS1

nDTR1 (XOR)

nRI1

nDCD2

PWR WELL

VTR

VCC

VCC

VTR

VTR

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VTR

VCC

PCI RESET

-

Active

Running

Running

-

Input

Input

Input

Input

Input

Input

Input

Input

Out 鈥?low

Input

Input

Input

Hi-Z

Hi-Z

Out 鈥?low

Out 鈥?low

Hi-Z

Hi-Z

Input

Out 鈥?high

Out 鈥?high

Input

Input

Input

Out 鈥?high

Out 鈥?low

Input

Out 鈥?high

-

Input

-

Active

Running

Running

-

Input

Input

Input

Input

Input

Input

Input

Input

Out 鈥?low

Input

Input

Input

Hi-Z

Hi-Z

Out 鈥?low

Out 鈥?low

Hi-Z

Hi-Z

Input

Out 鈥?high

Out 鈥?high

Input

Input

Input

Out 鈥?high

Out 鈥?low

Input

Out 鈥?high

-

Input

VCC POR

VTR POR

Active

Off

Off

Running

Hi-Z

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Off

Input

Off

This pin is internally pulled

down to VSS until Serial Port 2

is enabled.

This pin is internally pulled

down to VSS until Serial Port 2

is enabled.

This pin is internally pulled

down to VSS until Serial Port 2

is enabled.

NOTES

This pin requires external pull-

up to V_5P0_STBY

This pin requires external pull-

up to VCC5V

nDSR2

VCC

Input

Input

Off

RXD2

nRTS2

TXD2

VCC

VCC

VCC

Input

Out 鈥?high

Out 鈥?low

Input

Out 鈥?high

Out 鈥?low

Off

Off

Off

SMSC/Non-SMSC Register Sets (Rev.

01-11-07)

Page 25

SMSC LPC47M172

DATASHEET

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