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EK-2022A-1G-001

June 1992

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Document:	DSP2022-A ATA/IDE Disk Drive Installation Guide
Order Number:	EK-2022A-1G
Revision:	001
Pages:	16
Original Filename:

OCR Text

DSP2022-A
ATA/IDE Disk Drive
Installation Guide
EK-2022A-IG-001

Digital Equipment Corporation

June, 1992
The information in this document is subject to change
without notice and should not be construed as a
commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any
errors that may appear in this document.

Contents

Scope of Information . . . . . . . . . . . .

Before You Begin . . . . . . . . . . . . . .

Locate the ATA Connector . . . . . . . .

Note Pin Status of the Vendor-Specific
Field . . . . . . . . . . . . . . . . . . . . . .

Note the Use of the ATA Signal Pins .

Locate Jumper Connector J1 . . . . . .

Learn the Jumper Functions . . . . . . .

Select Single or Dual Drive Operation

Remove Jumper 7 . . . . . . . . . . . . .

Obtain a mounting kit . . . . . . . . . . .

Locate the Drive Mounting Holes . . . .

Use the Drive Mounting Guidelines . .

Follow Connection Guidelines . . . . . .

Follow ATA Interface Instructions . . . .

Run the Setup Utility . . . . . . . . . . . .

Drive Specifications . . . . . . . . . . . .

iii

iv Contents

Figures
1

ATA Connector . . . . . . . . . . . . . . .

Location of Jumper Connector J1 . . .

Side Mounting Holes . . . . . . . . . . . .

Bottom Mounting Holes . . . . . . . . . .

Tables
1

Vendor-Specific Pin Options . . . . . . .

Single-Ended ATA Signal Pins . . . . .

Jumper Descriptions . . . . . . . . . . . .

Default Setup Values . . . . . . . . . . .

Drive Specification Summary . . . . . .

DSP2022-A ATA/IDE Disk Drive Installation Guide 1

Scope of Information
This guide supplies the information you need to configure
and install your Model DSP2022-A 2.5-inch disk drive on
your PC AT Attachment (ATA) interface. The tasks you
need to perform are listed in order in the table of contents.
The specifications for the disk drive are found on the last
page.

Before You Begin
Before removing the drive from its antistatic bag or
attempting installation, please read the following cautions:
ANTISTATIC CAUTION
As with any integrated circuit device, we highly
recommend that you use a properly grounded wrist
strap and antistatic pad when removing the disk drive
from its antistatic bag and handling it outside the bag.
HANDLING CAUTION
As with any delicate instrument, prevent shocks by
always placing it down gently. Avoid quick motions or
bumping.

2 DSP2022-A ATA/IDE Disk Drive Installation Guide

Locate the ATA Connector
Locate the 50-pin ATA connector at the rear of the drive
shown in Figure 1. This connector is used for cable
installation later. Note that the pins of the ATA connector
are divided into two pin fields: one for the ATA signals and
the other for the vendor-specific options. Learn the uses for
these two pin fields in the following sections.
Figure 1

ATA Connector

TWO MISSING PINS
SEPARATE PIN FIELDS

ATA 50 PIN CONNECTOR
MISSING PIN - KEY

1 A3 A1

2 A4 A2

22 X 2 PIN FIELD
ATA SIGNALS

2 X 2 PIN FIELD
VENDOR SPECIFIC
OPTIONS
CXO-3491A-TI_R

DSP2022-A ATA/IDE Disk Drive Installation Guide 3

Note Pin Status of the Vendor-Specific Field
The vendor-specific pin field consists of pins A1–A4 and is
used for manufacturing testing purposes. As indicated in
Table 1, these vendor-specific pins should always be left
open.
Table 1

Vendor-Specific Pin Options

Function

Status

A1
A2
A3
A4

Ground MFG test strap
Test UART receive data
+12 V for controller ROM
Test UART transmit data

Leave open
Leave open
Leave open
Leave open

Note the Use of the ATA Signal Pins
The 44 ATA signals pins carry the ATA signals, power, and
grounds paths for the drive circuitry. Table 2 provides a list
of the signal names. For a full explanation of all the ATA
signal functions, refer to the ANSI ATA Specification.

4 DSP2022-A ATA/IDE Disk Drive Installation Guide

Table 2

Single-Ended ATA Signal Pins

Signal

01
03
05
07
09
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41

-RESET
+DD7
+DD6
+DD5
+DD4
+DD3
+DD2
+DD1
+DD0
GND
RESERVED
-DIOW
-DIOR
IORDY
DMACK
+INTRQ
+DA1
+DA0
-CS1FX
-DASP
+5V CIRCUITS

02
04
06
08
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42

GND MOTOR
ACTUATOR

SIGNAL GND
+DD8
+DD9
+DD10
+DD11
+DD12
+DD13
+DD14
+DD15
KEY, (no pin)
SIGNAL GND
SIGNAL GND
SIGNAL GND
CSEL
SIGNAL GND
-IOCS16
-PDIAG
+DA2
-CS3FX
SIGNAL GND
+5V MOTOR
ACTUATOR
RESERVED

DSP2022-A ATA/IDE Disk Drive Installation Guide 5

Locate Jumper Connector J1
Locate jumper connector J1 on the electronic component
side of the drive shown in Figure 2. Note that connector
J1 contains eight jumper pairs numbered 0 through 7. Your
drive comes with all jumpers in place.
Figure 2

Location of Jumper Connector J1
JUMPER PAIR 7

JUMPER PAIR 0
CXO-3498A-MC_R

6 DSP2022-A ATA/IDE Disk Drive Installation Guide

Learn the Jumper Functions
The jumper functions on the ATA drive are described in
Table 3. Note that jumper 0 is used for selecting single or
dual drive operation and that jumper 7 is used to prevent
the drive from entering manufacturing test mode if pin A1 is
momentarily grounded. Jumpers 1 through 6 are reserved
for future use and should always be left in place.
Table 3

Jumper Descriptions

Jumper Function

Jumper Status

IN
IN

1
2
3
4
5
6
7

Single drive operation
Master drive in dual
operation
Slave drive in dual operation
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Prevents the manufacturing
test from being initiated if
ATA connector pin A1 is
grounded

OUT
IN
IN
IN
IN
IN
IN
OUT

DSP2022-A ATA/IDE Disk Drive Installation Guide 7

Select Single or Dual Drive Operation
With jumper 0 in place, your drive is set for single drive
operation, or as the master drive in dual drive operation.
If you wish to use this drive as the slave drive (drive D) in
dual drive operation, then remove jumper 0.

Remove Jumper 7
Remove jumper 7 to prevent the drive from entering
manufacturing test mode if pin A1 is grounded.

Obtain a mounting kit
Due to the large number of possible installation cabinets
and slot sizes, your drive does not come with an installation
kit of brackets, screws, and cables. You must obtain the
parts needed for your particular installation from your
distributor or purchasing source.

8 DSP2022-A ATA/IDE Disk Drive Installation Guide

Locate the Drive Mounting Holes
Two holes are provided on each side of the drive for side
mounting as shown in Figure 3. Four mounting holes are
provided on the bottom surface for bottom mounting as
shown in Figure 4.
Figure 3

Side Mounting Holes
MOUNTING HOLE (2)
M3 x 0.5
BOTH SIDES

.740 in
18.80 mm

1.375 in
34.93 mm

1.500 in
38.10 mm

.244 in
6.20 mm
CXO-3496A-MC_R

DSP2022-A ATA/IDE Disk Drive Installation Guide 9

Figure 4

Bottom Mounting Holes
4.000 in
101.60 mm
MOUNTING HOLE SCREW (4)
M3 x 0.05

.165 in
4.19 mm

2.420 in
61.47 mm

1.375 in

1.500 in

34.93 mm

38.10 mm
CXO-3495A-MC_R

10 DSP2022-A ATA/IDE Disk Drive Installation Guide

Use the Drive Mounting Guidelines
Use this list of drive mounting guidelines to prevent
mounting problems.
•

The drive may be mounted in any orientation.

•

Mounting screws should not penetrate the mounting
holes beyond the depths given in this list.

•

Mounting screws are M3 X0.5 metric screws (3mm
diameter and 0.5 thread pitch).

•

The recommended screw depth penetration of the
bottom mounting holes is 0.381 centimeters (0.15
inches).

•

The recommended screw depth penetration of the side
mounting holes is 0.254 centimeters (0.1 inches).

Follow Connection Guidelines
Use these guidelines to connect to the DSP2022-A ATA
connector:
•

Use a connector with pins on 2mm centers.

•

Use a Molex 87259-5016 connector or its equivalent.

•

Don’t exceed the recommended 2 foot cable length
maximum.

Follow ATA Interface Instructions
If the ATA interface is built into the computer, refer to the
computer’s installation guide for disk drive connection
instructions. If a separate interface adapter has been
installed, refer to the adapter installation guide for disk drive
connection instructions.

DSP2022-A ATA/IDE Disk Drive Installation Guide 11

Run the Setup Utility
When you are finished mounting the drive and attaching
the cables, you are ready to run the setup utility. You
need to run a setup utility to tell the system what type of
hardware is installed. To run the setup utility, follow the
setup instructions in your operating system manual or BIOS
manual.
This drive’s characteristics are not described by the 46
predefined BIOS drive types. Use BIOS type 47 (User
Defined Drive Type) to describe this drive. The default
values that describe this drive are provided in Table 4.
If your setup utility does not include the capability for a user
defined drive type, you can also use one of the pre-defined
drive types as long as the total capacity does not exceed
220.459 megabytes.
Table 4

Default Setup Values

Drive Characteristics

Default Values

Number of cylinders
Number of heads
Write precomp
Landing zone
Sectors per track
Size (megabytes)
Bytes per sector

699
11
0 (not used)
699 (not used)
56
220.459
512

12 DSP2022-A ATA/IDE Disk Drive Installation Guide

Drive Specifications
The performance and environmental specifications for your
disk drive are listed in Table 5.
Table 5

Drive Specification Summary

Formatted Storage
Average Seek Time
Typical spin up time
Disk rotation speed
Bytes per block
Height
Length
Width
Weight
Voltage & regulation
Active mode power
Operating Altitude
Operating Temperature

220,000,000 bytes
Less than 10 milliseconds
Less than 12.5 seconds
5400 RPM
512
0.75 in. (19.0 mm)
4.0 in. (101.6 mm)
2.75 in. (69.8 mm)
7.3 oz. (.20 kg.)
+5VDC +/- 5%
Less than 5 watts
-200 to + 10,000 feet
-61 to + 3,048 meters
+40 to +131 degrees F
+5 to +55 degrees C