USB97C201-MN datasheet(10/59 Pages) SMSC

10 / 59 page

SMSC USB97C201

Page 10

Rev. 11-05-03

DATASHEET

5.0 PIN DESCRIPTIONS

DISK DRIVE INTERFACE

IDE DMA

Request

IDE_DRQ

This pin is the active high DMA request from

the ATA/ATAPI interface.

IDE IO Read

Strobe

IDE_nIOR

O20

This pin is the active low read signal for the

interface.

IDE Register

Address 1

IDE_SA1

O20

This pin is the register select address bit 1

signal for the ATA/ATAPI interface.

IDE Register

Address 0

IDE_SA0

O20

This pin is the register select address bit 0

signal for the ATA/ATAPI interface.

IDE Register

Address 2

IDE_SA2

O20

This pin is the register select address bit 2

signal for the ATA/ATAPI interface.

IDE Data

IDE_D15

IO20

This pin is the bi-directional data bus bit 15

signal for the ATA/ATAPI interface.

IDE IO Write

Strobe

IDE_nIOW

O20

This pin is active low write signal for the

ATA/ATAPI interface.

IDE DMA

Acknowledge

IDE_nDACK

O20

This pin is the active low DMA acknowledge

signal for the ATA/ATAPI interface.

IDE Interrupt

Request

IDE_IRQ

This pin is the active high interrupt request

signal for the ATA/ATAPI interface.

IDE Data

IDE_D13

IO20

This pin is the bi-directional data bus bit 13

signal for the ATA/ATAPI interface.

IDE Data

IDE_D14

IO20

This pin is the bi-directional data bus bit 14

signal for the ATA/ATAPI interface.

IDE Chip

Select 0

IDE_nCS0

O20

This pin is the active low chip select 0 signal for

the ATA/ATAPI interface.

IDE Chip

Select 1 0

IDE_nCS1

O20

This pin is the active low select 1 signal for the

ATA/ATAPI interface.

IDE Data

IDE_D[0:12]

IO20

These pins are bits 0-12 of the ATA/ATAPI bi-

directional data bus.

IO Ready

IORDY

This pin is the active high IORDY signal from

the IDE drive.

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