Compaq SMA200 user manual Parallel ATA, Remarks EMV/EMI filters

DIGITAL-LOGIC AG SMA200 Manual V1.0

5.4.5.Parallel ATA

Signal

BUS

Type Description

On Module Terminatio n

Ext. Ter-	Max.		Matched
mination	Length	Ohm	Length
Needed	in mm		in mm

PATA_D[15..0]	CMOS	5V	IDE data signals	Series 33	-	100	55	-
		I/O
PATA_A[0..2]	CMOS	5V	IDE address signal.	-	-	100	55
		Out	Connect directly to the PATA
			device.
PATA_IOR#]	CMOS	5V	IDE control signal.	-	-	100	55
		Out	Connect directly to the
			PATA-device.
PATA_IOW#]	CMOS	5V	IDE control signal.	-	-	100	55
		Out	Connect directly to the
			PATA-device.
PATA_DACK#]	CMOS	5V	IDE control signal.	-	-	100	55
		Out	Connect directly to the
			PATA-device.
PATA_CS[3,1]	CMOS	5V	IDE control signal.	-	-	100	55
		Out	Connect directly to the
			PATA-device.
PATA_REQ	CMOS	3/5V	IDE control signal.	-	-	100	55
		In	Connect directly to the
			PATA-device.
PATA_IORDY	CMOS	3V	IDE control signal.	PU 4.7k to	-	100	55
		In	Connect directly to the	3.3V
			PATA-device.
PATA_IRQ	CMOS	3V	IDE control signal.	PU 10k to	-	100	55
		In	Connect directly to the	3.3V
			PATA-device.
PATA_PCSEL	CMOS	3V	GND = SSD works as master	PD 4.7k to		100	55
		In	HIGH = SSD works as slave	GND

If the signals are not used:

All this PATA signals may be left open.

Remarks:

EMV/EMI filters:

Are not needed.

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