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5 parallel ata, Parallel ata, Digital-logic ag – Compaq SmartCore Express SMA200 User Manual

Page 29

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DIGITAL-LOGIC AG

SMA200 Manual V1.0

29

5.4.5.

Parallel ATA

Signal

BUS

Type Description

On Module
Terminatio
n

Ext. Ter-
mination
Needed

Max.
Length
in mm

Ohm

Matched
Length
in mm

PATA_D[15..0] CMOS

5V

I/O

IDE data signals

Series 33

-

100

55

-

PATA_A[0..2]

CMOS

5V

Out

IDE address signal.
Connect directly to the PATA
device.

-

-

100

55

PATA_IOR#]

CMOS

5V

Out

IDE control signal.
Connect directly to the
PATA-device.

-

-

100

55

PATA_IOW#]

CMOS

5V

Out

IDE control signal.
Connect directly to the
PATA-device.

-

-

100

55

PATA_DACK#] CMOS

5V

Out

IDE control signal.
Connect directly to the
PATA-device.

-

-

100

55

PATA_CS[3,1] CMOS

5V

Out

IDE control signal.
Connect directly to the
PATA-device.

-

-

100

55

PATA_REQ

CMOS

3/5V

In

IDE control signal.
Connect directly to the
PATA-device.

-

-

100

55

PATA_IORDY

CMOS

3V

In

IDE control signal.
Connect directly to the
PATA-device.

PU 4.7k to
3.3V

-

100

55

PATA_IRQ

CMOS

3V

In

IDE control signal.
Connect directly to the
PATA-device.

PU 10k to
3.3V

-

100

55

PATA_PCSEL CMOS

3V

In

GND = SSD works as master
HIGH = SSD works as slave

PD 4.7k to
GND

100

55

If the signals are not used:

All this PATA signals may be left open.

Remarks:

EMV/EMI filters:

Are not needed.