Seagate MEDIALIST 630XE INSTALLATION GUIDE

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Medalist 630xe

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .

ATA Interface Drive

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . .

Product Manual

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Medalist 630xe

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ATA Interface Drive

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Product Manual

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trademarks of Seagate Technology, Inc. Medalist is a trademark of Seagate Technology , Inc. Other product names are t rademarks or registered trademarks of their owners.

Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Seagate Technology, Inc.

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Medalist 630xe ATA Product Manual, September 1995 iii

Contents

1.0 Specification summary . . . . . . . . . . . . . . . . . . . . . 1

1.1 Format configuration . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Physical organization . . . . . . . . . . . . . . . . . . . . . 1

1.3 Functional specifications . . . . . . . . . . . . . . . . . . . . 2

1.4 Drive dimensions . . . . . . . . . . . . . . . . . . . . . . . 2

1.5 Seek time . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.6 Start and stop time . . . . . . . . . . . . . . . . . . . . . . . 3

1.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . 4

1.7.1 Power-management modes . . . . . . . . . . . . . . . 4

1.7.2 Voltage tolerances . . . . . . . . . . . . . . . . . . . . 5

1.7.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . 6

1.7.4 Environment . . . . . . . . . . . . . . . . . . . . . . . 6

1.7.5 Ambient temperature . . . . . . . . . . . . . . . . . . . 6

1.7.6 Temperature gradient . . . . . . . . . . . . . . . . . . . 6

1.7.7 Relative humidity . . . . . . . . . . . . . . . . . . . . . 7

1.7.8 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.7.9 Shock and vibration . . . . . . . . . . . . . . . . . . . . 7

1.8 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.9 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.10 Auto-park . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.11 Agency listings . . . . . . . . . . . . . . . . . . . . . . . . 8

1.12 FCC verification . . . . . . . . . . . . . . . . . . . . . . . 8

2.0 Configurati on and mou n ting . . . . . . . . . . . . . . . . . 11

2.1 Handling and static-discharge precautions . . . . . . . . . 11

2.2 The ATA interface connector . . . . . . . . . . . . . . . . 12

2.3 Power connector . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 Master/slave jumper block . . . . . . . . . . . . . . . . . . 12

2.4.1 Single-drive configuration . . . . . . . . . . . . . . . . 13

2.4.2 Two-drive configuration . . . . . . . . . . . . . . . . . 13

2.4.3 Cable-select configuration . . . . . . . . . . . . . . . 14

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iv Medalist 630xe ATA Product Manual, September 1995

2.4.4 Factory-test conf igur ation . . . . . . . . . . . . . . . . 15

2.5 Optional drive activity LED . . . . . . . . . . . . . . . . . 15

2.6 Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 16

3.0 ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1 ATA interface connector pin assignments . . . . . . . . . . 19

3.2 Bus signal levels . . . . . . . . . . . . . . . . . . . . . . . 19

3.3 Supported ATA commands . . . . . . . . . . . . . . . . . 21

3.3.1 Identify Drive command (EC

3.3.2 Format track command (50

3.3.3 Set Features command (EF

3.3.4 Set Multiple Mode command (C6

3.3.5 Read Multiple command (C4

3.3.6 Write Multiple command (C5

) . . . . . . . . . . . . . 23

) . . . . . . . . . . . . . . 25

) . . . . . . . . . . . . . 26

) . . . . . . . . . . 28

) . . . . . . . . . . . . . 28

) . . . . . . . . . . . . . 29

3.4 Onboard drive diagnostics . . . . . . . . . . . . . . . . . . 30

3.5 ECC performance tests . . . . . . . . . . . . . . . . . . . 30

3.6 Supported BIOS . . . . . . . . . . . . . . . . . . . . . . . 31

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Medalist 630xe ATA Product Manual, September 1995 v

Figures

Figure 1. Typical startup current profile . . . . . . . . . . . . . . . 3

Figure 2. The drive interface connector . . . . . . . . . . . . . . 12

Figure 3. Connectors and jumpers . . . . . . . . . . . . . . . . . 13

Figure 4. Connecting cable-selected drives . . . . . . . . . . . . 15

Figure 5. Standard mounting dimensions . . . . . . . . . . . . . 17

Figure 6. Metric mounting dimensions . . . . . . . . . . . . . . . 18

Figure 7. ATA connector pin assignments . . . . . . . . . . . . . 20

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Medalist 630xe ATA Product Manual, September 1995 1

1.0 Specification summary

Note. Throughout this manual the Medalist 630xe is referred to by its

model number, ST3630A.

1.1 Format configuration

The drive is low-level formatted at the factory. You do not need to low-level format the drive.

You can operate the drive using many different address configurations, provided the number of sectors per track does not exceed 63. The following tables show Enhanced Cylinder Head Sector (ECHS) and Logical Block Address (LBA) translation geometries for the standard configurations. You can verify the parameters using the Identify Drive (EC

) command.

Cylinders 1,223 Heads 16 Sectors per track 63 Formatted capacity (Mbyt es Total sectors 1,232,784

) 631.1

1.2 Physical organization

Heads 4 Discs 2

1. One Mbyte equals one million bytes.

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2 Medalist 630xe ATA Product Manual, September 1995

1.3 Functional specifications

Interface Internal data-transfer rate (Mbits/sec) External data-transfer rate (Mbytes/sec)

PIO Mode 3

DMA Mode 1 Spindle speed ± 0.5% (RPM ) Segmented cache (Kbytes) Zone Bit Recording method Bytes per sector Recording density, max (BPI) Flux density, max (FCI) Track density, max (TPI)

ATA

22.9 to 39.6

11.1

13.3 3,811 120 RLL (1,7) 512 68K

45.4K 3,384

1.4 Drive dimensions

Height (max) 1.00 inch (25.4 mm) Width (max) 4.02 inches (102.1 mm) Depth (max) 5.77 inches (146.6 mm) Weight (max) 1.3 lb (0.59 Kg)

1.5 Seek time

All performance measurements are taken using a 25-MHz 486 AT computer (or faster) with an 8.3-MHz I/O bus. The measurements are taken using nominal power at sea level and at 25°C ambient temperature. The specifications in the table on page 3 are defined as follows:

• Track-to-track seek time is an average of all possible single-track seeks in both directions.

• Average seek time is a true statistical random average of at least 10,000 measurements of seeks between random tracks, less overhead.

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Medalist 630xe ATA Product Manual, September 1995 3

• Full-stroke seek time is one-half the time needed to seek from the first data cylinder to the maximum data cylinder and back to the first data cylinder. The full-stroke average is determined by measuring 100 full-stroke seeks in both directions.

Track-to-track

typ (msec)

Average

typ (msec)

Full-stroke typ (msec)

Latency

(msec)

5 14 34 7.87

1.6 Start and stop time

Within 10 seconds, the drive is ready. Typical and maximum start and stop times are shown in the following table. Figure 1 shows a typical startup current profile.

Typical Maximum

Start time 7 sec 10 sec Stop time 6 sec 9 sec

Current mA

1,200

1,000

800

600

400

200

2.0 4.0

6.0

8.0

Figure 1. Typi ca l star t up cur re nt prof il e

10.0 12.0

Time (seconds)

14.0

16.0

18.0 20.0

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4 Medalist 630xe ATA Product Manual, September 1995

1.7 Power specifications

Except during a write operation, you can apply power to the drive or remove power from the drive in any sequence without losing data or damaging the drive.

1.7.1 Power-management modes

The drive supports the following power-management modes:

• Active mod e. The drive is seeking, reading or writing.

• Idle mod e. When the drive rec e ives an Idle Imm e diate com mand, or

the idle timer counts down to zero, the drive enters the Idle mode. In Idle mode, the spindle remains up to speed. The segmented cache remains enabled, and the drive accepts all com mands and returns to the Active mode whenever a seek, read or write operation is needed.

• Standby mod e. When the drive receives a Standby Immediate com mand, or the standby timer has counted down to zero, the drive enters the Standby mode. In the Standby mode, the segmented cache remains enabled, the heads are parked in the shipping zone and the spindle is stopped. The dr ive accepts all c ommands and r eturns to the Active mode whenever a seek, read or write operation is needed.

• Sleep mo de. When the drive receives a Sleep Immediate command, it enters the Sleep mode. The heads are parked in the shipping zone and the spindle is at rest. A hard reset or a soft reset returns t he drive to Active mode. A soft reset preserves the current emulation and translation parameters.

1.7.1.1 Idle and Standby timers

The drive can enter the Idle mode or the Standby mode by eit her of tw o methods:

• The computer sends an Idle Immediate command or a Standby Immediate command.

• The idle timer or the standby timer counts down to zero.

The Idle and Standby timers are disabled at the factory. Use the computer’s setup utility to enable and set the timer delays. When the Idle timer is enabled, it is initialized each time the drive completes a read, write or seek.

If the Idle timer reaches zero before any drive activity is required, the drive goes into the Idle mode, and the Standby timer, if it is enabled, is initialized. If the Standby timer reaches zero before any drive activity is

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Medalist 630xe ATA Product Manual, September 1995 5

required, the drive goes into the Standby mode. See the

Interface Reference Manual

, publication number 36111-

Seagate A T A

xxx

for details.

In both the Idle and Standby modes, the driv e accepts all com mands and returns to the Act ive mode any time disc access is necessary . There may be a slight delay between the time the drive receives the command an d drive activity begins.

1.7.1.2 Power consumption

The following guidelines are used to measure power consumption:

• All measurements are taken at sea leve l with an ambient temperature of 25° C.

• All typical measurements are taken us ing nominal v oltages; the peak startup power is measured using the nominal voltages.

• Seek current measurements are taken using an RMS meter while th e drive is randomly seeking with two spindle rotations between each seek.

Mode

Spinup (peak) 1.2 0. 3 5 8.5 Active

Seeking (typ) 0.34 0.23 5.23

Read/write (typ)

(typ)

Idle Standby Sleep

(typ) 0.025 0.085 0.725

(typ) 0.025 0.070 0.650

Current (amps)

Power (watts)

+12V +5V

0.145 0.32 3.34

0.12 0.085 1.865

1.7.2 Voltage tolerances

+5V +12V

Voltage tolerance including noise

2. These values apply only when power management is enabled. To enable power management, use the computer setup utility.

3. Spinup power is averaged over 7 seconds.

± 5% ± 5%

± 10% during spinup

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1.7.3 Conducted noise

The drive is expected to operate with a maximum of:

• 150 mV peak-to-peak triangular-wave injected noise at the power connector. The frequency is 10 Hz to 100 KHz with equivalent resistive

loads.

• 100 mV peak-to-peak triangular-wave injected noise at the power connector. The frequency is 100 KHz to 10 MHz with equivalent resistive loads.

1.7.4 Environment

The acceptable environmental conditions for the drive are specified below . The specific ations in this section are defined as follows:

• Operating specifications assume that the drive is powered up.

• Nonoperating specifications assume that the drive is packaged as it

was shipped from the factory.

1.7.5 Ambient temperature

Operating 5° to 55° C (41° to 131°F) Nonoperating –40° to 70° C (–104° to 158°F)

1.7.6 Temperature grad ien t

Operating (max) 20°C per hour (36°F per hour) Nonoperating (max) 30°C per hour (54°F per hour)

4. Equivalent resistance is calculated by dividing the respective voltage by the typical RMS read/write current.

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Medalist 630xe ATA Product Manual, September 1995 7

1.7.7 Relative humidity

Operating 8% to 80% noncondensing

Maximum wet bulb 29.4°C (85.0°F )

Nonoperating 5% to 95% noncondensing

Maximum wet bulb 40.0°C (104.0°F )

1.7.8 Altitud e

Operating –1,000 ft to 10,000 ft (–305 m to 3,050 m) Nonoperating –1,000 ft to 40,000 ft (–305 m to 12,200 m)

1.7.9 Shock and vibrat ion

Shock measurements are based on an 11 msec, half sine wave shock pulse, not to be repeated m ore than twice per second. T he specifications in the table below are defined as follows:

• During normal operating shock and vibration, the drive sustains no physical damage and reads and writes data without errors.

• During abnormal operating shock and vibration, the drive sustains n o physical damage, but performance is adversely affected.

• During nonoperating shock and vibration, the read/write heads are in the shipping zone and the drive sustains no physical damage.

Normal operating

Shock 2.0 Gs 10.0 Gs 75.0 Gs 5–22 Hz vibration 0.020-inch

displacement peak-to-peak

22–300 Hz vibration 1.0 G

peak-to-peak

Abnormal operating Nonoperating

0.030-inch displacement peak-to-peak

1.5 Gs peak-to-peak

0.160-inch displacement peak-to-peak

8.0 Gs peak-to-peak

1.8 Acoustics

Sound pressure is measured at idle from 1 meter above the drive top cover.

Sound pressure, typ 29 dBA Sound pressure, max 33 dBA

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1.9 Reliability

The MTBF and contact start-stop specifications ass ume nominal power at sea level with an ambient temperature of 25°C.

Nonrecoverable errors 1 per 10 MTBF 300,000 power-on hours Contact start-stop (CSS) 40,000 cycles MTTR 30 minutes Service life 5 years

bits read

1.10 Auto-park

Upon power-down, the read/write heads automatically move to the shipping zone. The heads park inside the maximum data cylinder. When power is applied, the heads recalibrate to track 0.

1.11 Agency listings

This drive is listed with agencies as follows:

• UL 1950

• CSA C22.2 No. 0-M91 and CSA C22.2 No. 950-M89

• EN 60950/10.92 as tested by TUV-Rheinland, North America

1.12 FCC verification

The ST3630A drive is intended to be contained solely within a personal computer or similar enclosure (not attached to an external device). As such, a drive is considered to be a subassembly even when individually marketed to the customer. As a subassembl y, no Federal Communications Commission authorization, verific ation or certification of the device is required.

Seagate Technology, Inc. has tested the drive in an enclosure as described above to ensure that the total assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of the FCC rules. Operation with noncertified assemb lies is likely to result in interference to radio and television reception.

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Medalist 630xe ATA Product Manual, September 1995 9

Radio and television interferen ce. This equipment generates and uses radio frequency energy and, if not installed and used in strict accor dance with the manufacturer’s instruc tions, may cause interference to radio an d television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause interference to radio or television, which can be determined by turning the equipment on and off, you are encouraged to try one or more of the following corrective measures:

• Reorient the receiving antenna.

• Move the device to one side or the other of the radio or TV.

• Move the device farther away from the radio or TV.

• Plug the equipment into a different outlet so that the receiver and

computer are on different branch outlets.

If necessary, you should consult your dealer or an experienced radio/television technician for additional suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission:

How to Identify and Resolve Radio-Television Interference Problems.

This booklet is available from the Superintendent of Documents, US Government Printing Of fice, Washington, DC 20402. Refer to publication number 004-000-00345-4.

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Medalist 630xe ATA Product Manual, September 1995 11

2.0 Configuration and mounting

This section discusses the ATA interface connector and other physical features of the drive, including mounting. Figure 3 on page 13 s hows th e location of the following features:

• The ATA interface connector

• The power connector

• The master/slave jumper block

• The optional drive activity LED

A brief discussion of each start s on page 12.

2.1 Handling and static-discharge precautions

After you unpack the drive, and before you install it in a computer, be careful not to damage it through mishandling. Wool and synthetic clothing, carpet, plastics and Styrofoam are contributor s to the static build-up that can damage sensitive components when discharged through touch. Observe the following standard handling and static-discharge precautions:

Caution:

• Keep the drive in its static-shielded bag until you are r eady to complete the installation. Do not attach any cables to the drive while it is in its static-shielded bag.

• Wear a grounded wrist strap that is properly connected to earth ground, or ground yourself frequently by touching the metal chassis of a power supply that is plugged into a grounded outlet when handling the drive and throughout the entire installation procedure.

• Handle the drive by its edges or frame only.

• The drive is extremely fragile—handle it with care. Do not press down

on the drive top cover.

• Always rest the drive on a padded, antistatic surface until you mount it in the computer.

• Do not touch the connector pins or the printed circuit board. Do not touch the printed circuit cable between the circuit board and the head/disc assembly.

• Do not remove the factory-installed labels from the drive or cover them with additional labels. If you do, you void the warranty. Some f actoryinstalled labels contain information needed to service the drive. Others are used to seal out dirt and contamination.

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2.2 The ATA interface connector

The drive uses a standard 40-pin interface connector with 2 rows of 20 male pins. Pin 20 is removed. The connector is shown in Figure 2.

For the mating connector, use a 40-pin, nonshielded connector with 2 rows of 20 female contacts. We recommend t he following part numbers:

AMP 499496 Berg Electronics 66900-040

Dimensions are in inches

0.230 ± 0.003

0.025 ± 0.002

0.70 ± 0.010

0.100 ± 0.010

0.235 ± 0.025

0.025

± 0.002

0.160

1.90

2.00

Figure 2. The dri ve int erf ac e conn ect or

0.100 typ

0.070 ± 0.010

2.3 Power connector

The drive comes with a standard 4-pin power connector. It is also available with a standard 3-pin power connector .

2.4 Master/slave jumper block

Figure 3 shows the locat ion of the mast er/slave jumper block and shows how to install the jumpers for various configurations. The jumper block accepts 2-mm (0.079-i nch) jumpers. A spare jumper is attached to the jumper block. If you need additional jumpers, use Seagate part number 10562-001 or an equivalent.

Caution. If you use a jumper that is not the correct size, you may damage

the jumper block and the jumper. Use the jumpers supplied with the drive.

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Medalist 630xe ATA Product Manual, September 1995 13

4-pin

power connector

Circuit board

+5V +5V return +12V return +12V 

Front

2-pin header

–

Pin 1

40-pin

ATA interface

connector

Keyway

Circuit board

3-pin

power connector 

(optional)

Ground +12V +5V

master/slave jumper block

8-pin

587

Front

21436

The drive is a master; the slave is either a Medalist family drive or  another ATA-compatible  drive, or there is no slave.

The drive is a master; a slave is present, but it is not ATA-compatible.

The drive is a master; a  slave is present that uses only the PDIAG– signal.

The drive is a slave to an ATA-compatible master.

Cable select

Drive activity

LED 

(optional)

Spare jumper 

across pin 1 and pin 3

Figure 3. Connector s and jum per s

2.4.1 Single-drive configuration

Use the factory-default jumper setting when the ST3630A drive is installed as the single drive in the computer.

2.4.2 Two-drive configuration

When two drives are installed in the computer, you must configure one drive as the master and the other as the slave.

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14 Medalist 630xe ATA Product Manual, September 1995

2.4.2.1 The ST3630A drive as master

The ST3630A provides three ways the slave can identify itself. You can configure the ST3630A for a slave that is:

• An ATA-compatible drive

• A non-ATA-compatible drive that does not conform to the DASP–

timing parameter of the ATA spec

• A non-ATA-compatible drive that does not conform to the DASP– timing parameter of the ATA spec but negates PDIAG– when the drive is ready

2.4.2.2 The ST3630A as slave

The ST3630A drive conforms to the A T A standard for slave identificat ion. If the master drive is a non-ATA-compatible drive, it may not recognize the ST3630A drive in the slave position. We recommend that you configure your ST3630A drive as the master when used with a non-A T Acompatible drive.

2.4.3 Cable-select configuration

If your computer and both of your drives support cable select (CSEL), you can use the cable select option to determine the master and slave. To configure your drive to use cable select, you need to install jumpers and to use a special cable-select cable as follows:

• Install a jumper on pins 3 and 4 of the master/slave jumper bl ock as shown in Figure 3 on page 13. When a jumper is installed in this position, the drive ignores the jumper installed on pins 7 and 8.

• You must use an interface cable built for cable-select. To make a drive the master, attach it to the connector that has the CSEL signal l ine connected to pin 28. To make a drive the slave, attach it to the connector that has pin 28 unconnected (CSEL is not carried to pin 28 of that cable connector.) Note that CSEL is grounded at the host.

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Medalist 630xe ATA Product Manual, September 1995 15

Slave

CSEL not carried to pin 28 of this connector

Master

Pin 28 grounded at computer

Computer

Figure 4. Connect i ng ca bl e- sel ect ed drives

2.4.4 Factory-test configuration

Do not install jumpers on pins 5 and 6 and pins 7 and 8 at the same time. This configuration is used to test the drive at the factory. When jumpers are installed in both of these positions, the heads continuously seek back and forth across the media and the drive ignores a ll control signals sent by the interface.

2.5 Optional drive activity LED

The drive is available with or without the external activity LED shown in Figure 3 on page 13. This option is available for users for whom the activity display through the bus is inaccessible or inconvenient. There are two LED options:

• The LED is mounted directly on the printed circuit board, or

• A two-pin header is mounted on the printed circuit board for a remote

LED. The anode pin of the header is nearest the edge of the PCB.

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16 Medalist 630xe ATA Product Manual, September 1995

2.6 Mounting the drive

Y ou can mount the drive in any orientat ion using either the bot tom or th e side mounting holes, as described below. Figure 5 shows the SAE dimensions for the drive. Figure 6 on page 18 shows the metric dimensions for the drive.

Note. The location of the mounting holes are different for the SAE an d

metric drives. Overall, the drive dimensions are the same.

• SAE drives have an “S” stamped on the frame runner and accept 6-32 UNC screws.

• Metric drives have an “M” stamped on the frame runner and accept M3 screws.

Bottom mounting holes. Insert four mounting screws not more than

0.20 inches (6 full turns) into the drive frame.

Side mounting holes. Insert four mounting screws not more than

0.13 inches (4 full turns) into the drive frame.

Caution. To prevent damage to the drive:

• Use only mounting screws of the correct size and length.

• Lightly tighten the mounting screws—do not apply more than

6 inch-pounds of torque.

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Medalist 630xe ATA Product Manual, September 1995 17

Figure 5 shows the dimensions in inches. The mounting holes are located in different positions for the SAE drive than the mounting holes on the metric drive shown in Figure 6 on page 18.

0.15 ± 0.01 Six #6-32 UNC-2B mounting holes

2.362 ± 0.010

4.000 ± 0.010

0.630 ± 0.025

0.030

5.77 max

1.000 max

0.250 ± 0.010

1.75 ± 0.0102.375 ± 0.025

Four #6-32 UNC-2B mounting holes

Figure 5. Standar d mount i ng di m ens ion s

4.02 max

3.750± 0.030

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18 Medalist 630xe ATA Product Manual, September 1995

Figure 6 shows the dimensions in millimeters. This figure s hows that th e mounting holes for the metric drive are in different positions than the mounting holes for the SAE drive shown in Figure 5 on page 17.

3.81 ± 0.254

0.762

± 0.635

Six M3 × 0.5 mounting holes

59.995 ± 0.254

89.992 ± 0.254

21.006 ± 0.635

146.56 max

70.002 ± 0.25430.988

25.4 max

4.978 ± 0.254

Four M3 × 0.5 mounting holes

Figure 6. Metric mounting dimensions

102.108 max

93.98 ± 0.762

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Medalist 630xe ATA Product Manual, September 1995 19

3.0 ATA interface

The drive uses an A T A interface. The interface is in compliance with ANSI

ATA (AT Attachment) Interface X3.221, Rev. 4; SFF 8011: ATA Timing Extension for Local Bus Attachments, Rev . 2.0 Data for Drives Under 8 GB

and

Draft Proposal American National

Standards AT Attachment Interface X3.310-948D, Rev. 2E

commands the drive supports are listed in the table on page 22. Commands and features with specific application for the drive are discus sed in this section. For a general discussion of the Seagate ATA interface, refer to the ber 36111-

The ATA interface consists of single-ended, TTL-compatible receivers and drivers that use an asynchronous interf ace protocol. The drivers can sink up to 24 mA and drive a load up to 300 pF. The integrity of the ATA interface is affected by the interface cable. It is designed to support a 40-conductor, nonshielded interface cable with a maximum length of 1 8 inches (0.46 meters).

Seagate A TA Interface Reference Manual

xxx

3.1 ATA interface connector pin assignments

The signal name and direction for each I/O connector pin is shown in Figure 7 on page 20. For a description of each pin, see the

Interface Reference Manual

, publication number 36111-

;

SFF 8019: I dentify Drive

. The ATA

, publication num-

Seagate A TA

xxx.

Signal names are shown in upper-case letters. Signal name followed by a minus sign (–) indicate the signal is active low . Ot herwise, the signal is active high.

Note. The drive does not use the SPSYNC– signal.

3.2 Bus signal levels

Signals that the drive sends have the following output characteristics measured at the drive connector.

Logic low 0 to 0.4V Logic high 2.5 to 5.25V

Signals that the drive receives must have the following input characteristics measured at the drive connector .

Logic low 0 to 0.8V Logic high 2.0 to 5.25V

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20 Medalist 630xe ATA Product Manual, September 1995

Drive pin #

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

*28

29 30 31 32 33

*34

35 36 37 38

*39



*Indicates master-slave signals (details shown below).

Signal name

Reset– Ground

DD7 DD8 DD6 DD9 DD5

DD10

DD4

DD11

DD3

DD12

DD2

DD13

DD1

DD14

DD0

DD15

Ground

(removed)

DMARQ

SPSYNC−:CSEL

DMACK–

IOCS16–

PDIAG–

CS1FX– CS3FX–

 Ground DIOW– Ground

DIOR– Ground IORDY

Ground

INTRQ

DA1 DA0

DA2

DASP–



Ground



Host pin # and signal description

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39  40

Host Reset Ground Host Data Bus Bit 7 Host Data Bus Bit 8 Host Data Bus Bit 6 Host Data Bus Bit 9 Host Data Bus Bit 5 Host Data Bus Bit 10 Host Data Bus Bit 4 Host Data Bus Bit 11 Host Data Bus Bit 3 Host Data Bus Bit 12 Host Data Bus Bit 2 Host Data Bus Bit 13 Host Data Bus Bit 1 Host Data Bus Bit 14 Host Data Bus Bit 0 Host Data Bus Bit 15 Ground (No Pin) DMA Request Ground Host I/O Write Ground Host I/O Read Ground I/O Channel Ready Cable Select DMA Acknowledge Ground Host Interrupt Request Host 16 Bit I/O Host Address Bus Bit 1 Passed Diagnostics Host Address Bus Bit 0 Host Address Bus Bit 2 Host Chip Select 0 Host Chip Select 1 Drive Active or Slave Present Ground 

Drive 1

(slave)

28 34 39

Drive 0

(master)

28 34 39

Figure 7. ATA connect or pin assi gn me nt s

SPSYNC−:CSEL

PDIAG

DASP–

–

Host

28 34 39

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Medalist 630xe ATA Product Manual, September 1995 21

3.3 Supported ATA commands

The table on page 22 lists all AT A commands the drive uses. Commands that have a particular application for the drive or that may be of special interest are discussed in this manual. For a complete description of all ATA interface commands the drive uses, refer to the

Interface Reference Manual

tion is provided by the Small Form Factor specification, SFF-8011 Rev

1.1, September 18, 1993. The following table lists all commands implemented in the drive. The

table uses the following abbreviations:

FR Features register SC Sec tor count register SN Sec tor number register CY Cylinder register DH Drive/head register

This register does not contain a valid parameter for this

command. This register conta ins a valid parameter for this command. In

the drive/head register, both the drive and head parameters are valid for this command.

The drive/head register contains a valid drive parameter for this

command. The head parameter is not valid for this command.

, part number 361 1 1-

xxx

Seagate ATA

. Additional informa-

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22 Medalist 630xe ATA Product Manual, September 1995

Command name

Active and Set Idle Timer FB n y n n D Active Immediate F9 nnnnD Check Idle Mode FD n y n n D Check Power Mode 98, E5 n y n n D Execute Drive Diagnostics 90 nnnnD Format Track 50 n y n y y Identify Drive EC nnnnD Idle 97, E3 n y n n D Idle and Set Idle Timer FA n y n n D Idle Immediate 95, F8, E1 nnnnD Initialize Drive Parameters 91 n y n n y Read DMA C8, C9 — yyyy Read Long 22, 23 n yyyy Read Multiple C4 n yyyy Read Sector 20, 21 n yyyy Read Sector Buffer E4 nnnnD Read Verify Sector 40, 41 n yyyy Recalibrate 1X nnnnD Seek 7X n n y y y Set Features EF y n n n D Set Multiple Mode C6 n y n n D Set Sleep Mode 99, E6 nnnnD Standby 96, E2 nnnnD Standby Immediate 94, E0 nnnnD Write DMA CA, CB —yyyy Write Long 32, 33 n yyyy Write Multiple C5 n yyyy Write Sector 30, 31 n yyyy Write Sector Buffer E8 nnnnD

Command

code (in hex)

Parameters used

FR SC SN CY DH

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Medalist 630xe ATA Product Manual, September 1995 23

3.3.1 Identify Drive command (ECH)

The Identify Drive command transf ers inf ormat ion about t he drive to th e host after power up. T he dat a is or ganized as a single 512-byte block of data. The block’s content s are shown in the table below. All reserved bit s or words must be set to zero. Parameters listed with an “x” are drive-sp ecific or vary with the state of the drive.

The parameters for the drive are listed in the ta ble below . For a complete description of the Identify Drive command, see the

Reference Manual

, publication number 36111-

Word Description Value

0 Configuration 045A

Bit 10: 1 = disc transfer rate > 10 Mbits/sec Bit 6: 1 = fixed drive Bit 4: 1 = head switch time > 15 µsec Bit 3: 1 = not MFM encoded

Bit 1: 1 = hard-sectored disc 1 2 3 4 5

7–9

10–19

21 22

Default cylinders 1,223 Reserved 0000 Default heads (default) 16 Bytes per track 8D90 Bytes per sector 0248 Default sectors per track 63 Vendor-unique 0000 Serial number Drive-unique: 20 ASCII

characters

Buffer type 0003

caching

Buffer size (number of

00F0

512-byte sectors) ECC bytes (R/W Long) 0010

23–26 Firmware revision Drive-dependent: 8 ASCII

characters

27–46 Model number ST3630A

Seagate A TA Interface

xxx

Multisector with

(240D)

(16D)

continued

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24 Medalist 630xe ATA Product Manual, September 1995

continued fro m previous pa g e

Word Description Value

47 Maximum sectors per

0010

interrupt on read/write multiple

48 Double word I/O 0000H Not supported 49 Capabilities 0B00

DMA, IORDY and LBA

supported

50 Reserved 0000 51

PIO timing mode 0200 DMA timing mode 0200

Current valid 0003

H H

Single-word DMA

supported

Bit 0 = 1 indicates the

fields reported in

words 54–58 are valid; Bit 1 = 1 indicates the fields reported in words 64–8 are valid

54 Current cylinders 1,223 55 Current heads 16 56 Current sectors per

track

57–58 Current sectors 1,232,784

Current multiple sector setting

60–61 LBA total sectors 1,232,784

64 65

Single-word DMA 07

Modes 0, 1 and 2 are supported

Multiword DMA 0103

Modes 0 and 1 are

supported Advanced PIO 0001 Minimum multiword

150 nsec DMA transfer per word

Recommended

150 nsec multiword DMA transfer per word

No modes are active;

Mode 0 is active;

Mode 3 is supported

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Medalist 630xe ATA Product Manual, September 1995 25

Word Description Value

69–127 128–159 160–255

Minimum PIO without IORDY

Minimum PIO with IORDY

Reserved 0000 Reserved Reserved 0000

400 nsec

180 nsec

xxxx

3.3.2 Format track command (50H)

The drive accepts a Format track command (50H) and the 512 bytes of the format data transf erred by the host. However, the command does not mark bad sectors, reassign sector s or unreassign sectors. The first sector data the host transfers is ignored. A 00 data patt ern is written to the track specified in the command.

5. Cycle times less than 400 nsec require IORDY.

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26 Medalist 630xe ATA Product Manual, September 1995

3.3.3 Set Features command (EFH)

The host uses the Set Features command (command code EFH) to establish parameters that affect the execution of certain dri ve features. To use the command:

1. Write the Feature value to the Features re gister.

2. Write the Set Features command to the com mand register . Note. If the value in the Feat ures register is not supported or is invalid,

the drive posts an Aborted Command error.

At power-on, or after a hard reset, the feature select ions are res tored t o the factory-default values. If 66 change the feature selections (thi s can be canceled by setting CC 66

has not been set, a soft reset returns the settings to the factory

defaults. The following table shows the alterable features the drive supports.

Where a factory default value exists, that value is listed.

Byte Feature description

has been set, a softwar e reset does not

). If

02 03

55 66 82 AA BB CC

Enable write cache (factory default).

Set value for Set Transfer mode based on value in Sector

Count register. Use maximum length of ECC (16 bytes) on read long/write

long commands (factory default). Disable read look-ahead feature.

Use current settings as default (until hard reset or power off).

Disable write cache.

Enable read look-ahead feature (factory default).

4 bytes of ECC apply on read long/write long commands.

Enable reverting to power-on defaults (factory default).

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Medalist 630xe ATA Product Manual, September 1995 27

3.3.3.1 PIO and DMA Data Transfer Modes

You can set the multiword DMA m ode and ident ify the P IO data-t ransf er mechanism and transfer mode with the Set Features command. To set the multiword DMA mode:

1.1. Write Set Features command value 03

(Set Data Transfer mode) t o

the Features register.

2. Write a transfer types value to the Sector Count reg ister. The upper 5 bits of this value define the type of data transfer, and the lower 3 bits encode the mode value.

This changes word 63 of the Identify Drive command to the mode you enter in the Sector Count register.

The following table identifies allowable transfer types values:

Data-Transf er Mechan i sm Transfer Types value

Mechanism na me

PIO Transfer Mode (default: Set PIO Mode = 2)

PIO Transfer Mode: Set PIO Mode = 2

PIO Flow Control Transfer Mode: Set PIO Mode = 0

PIO Flow Control Transfer Mode: Set PIO Mode = 1

PIO Flow Control Transfer Mode: Set PIO Mode = 2

PIO Flow Control Transfer Mode: Set PIO Mode = 3

Multiword DMA Mode Multiword DMA Mode Reserved

Mode

value

2 00000 000

2 00000 001

0 00001 000

1 00001 001

2 00001 010

3 00001 011 0 00100 000

1 00100 001

— 01000

Data

Upper 5 bits

Lower 3 bits

nnn

If the drive does not support a commanded mode, the drive returns an Aborted Command error.

If the drive receives a Set Features command with a Mechani sm and mode value of 00000 001 and the drive supports disabling of IORDY, then the drive sets its default PIO transfer mode and disables IORDY.

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28 Medalist 630xe ATA Product Manual, September 1995

3.3.4 S et Mul tiple Mode command (C6H)

Command code C6H enables the drive to perform Read and Write Multiple operations and establishes the block count for thes e commands. You do not have to issue this command before every Read Multiple or Write Multiple command.

The Sector Count register is loaded with the number of sectors per block. Drives normally support block sizes of 2, 4, 8 and 16 sectors. However , other block-size values may also be supported, depending on the size of the drive’s buffer. After receiving the Set M ultiple Mode com mand, the drive sets BSY=1 and checks the Sector Count register.

If the Sector Count register contains a valid value and the block count is supported, the value is loaded for all subsequent Read Multiple and W rite Multiple commands and execution of those commands is enabled. If a block count is not supported, an Aborted Comm and er ror is posted, a nd Read Multiple and Write Multiple commands are disabled.

If the Sector Count register contains 0 when the command is issued, Read and Write Multiple commands are disab led.

At power on, or after a hardware reset, the default mode is Read and Write Multiple disabl ed. If Disable Default has been set in the Features register , then the mode remains the same as that last established before a software reset. Otherwise it reverts to the default of disabled.

3.3.5 Read Multiple command (C4H)

This command (code C4H) is similar to the Read Sectors command. Interrupts are not generated on every sector, but on the transfer of a block that contains the number of sectors defined by a Set Multiple Mode command.

The number of sectors per block to be transferred without intervening interrupts is programmed by the Set Multiple Mode command, which must be executed before the Read Multiple command. Interrupts are generated when DRQ is set to 1 at the beginning of each block or partial block.

When the Read Multi ple command is issued, the Sector Count register contains the number of sectors (not the number of blocks or the bl ock count) requested.

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Medalist 630xe ATA Product Manual, September 1995 29

If the number of requested sectors is not evenly divisibl e by the block count, as many full blocks as possible are transferred, followed by a final, partial block transfer. The partial block transfer is for

= remainder (sector count / block count)

If the Read Multiple command is attempted before the S et Multiple Mode command has been executed or when Read Multiple commands are disabled, the Read Multiple operation is rejected with an Aborted Command error .

Disc errors encountered during Read Multiple commands are posted at the beginning of the block or partial block transfer, but DRQ is still set and the data transfer takes place as it normally would, including transfer of corrupted data, if any.

The contents of the Command Block registers, following the transfer of a data block that had a sector in error, are undefined. The host should retry the transfer as individual requests to obtain valid error infor mat ion.

Subsequent blocks or partial blocks are transferred only if the error was a correctable data error . All other errors cause the command to s top after the block containing the error is transferred.

sectors, where

3.3.6 Write Multiple command (C5H)

This command (command code C5H) is similar to the Write Sectors command. Interrupts are not presented on each sector but on the transfer of a block that contains the number of sectors defined by Set Multiple Mode command.

The number of sectors per block to be transferred without intervening interrupts is programmed by the Set Multiple Mode command, which must be executed before the Write Mu ltip le command.

When the Write Multiple command is issued, the Sector Count register contains the number of sectors (not the number of blocks or the bl ock count) requested.

If the number of requested sectors is not evenly divisibl e by the block count, as many full blocks as possible are transferred, followed by a final, partial-block transfer . The parti al-b lock transfer is for

n = remainder (sector count / block count) If the Write Multiple command is attempt ed before the Set Multiple Mo de

command has been executed or when Write Multiple commands are disabled, the Write Multiple operation is rejected with an aborted command error .

sectors, where

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30 Medalist 630xe ATA Product Manual, September 1995

Disc errors encountered during Write Multiple commands are posted after the attempted disc write of the block or partial block transferr ed. The Write command ends with the sector in error , even if it was in the middle of a block. Subsequent blocks are not transferred in the event of an error. Interrupts are generated when DRQ is set to 1 at the beginning of each block or partial block.

The contents of the Command Block registers are undefined when t hey follow the transfer of a data block that had a sector in error. The host should retry the transfer as individual requests to obtain valid error information.

3.4 Onboard drive diagnostic s

During startup, the drive executes a series of diagnostic tests. If the diagnostic tests detect an error, the drive LED indicates the nature of the error by emitting a flash code. A subset of the error flash codes is contained in the following table:

Number of

flashes

Irregular flashes Microprocessor error

2 ROM checksum error 3 External RAM error 4 I/O chip error 5 Buffer RAM error

Error code description

3.5 ECC performance tests

The drive does not report ECC errors when it performs on-the-fly error correction. This allows the drive to correct the data without sacrificing performance.

Some older drive diagnostic utilities test the drive’s ability to apply ECC by creating small data errors and then checking to see if these errors are reported. If you run one of these tests on a drive that is functioning properly , the test may report that the drive is failing to detect ECC errors. However, this does not mean that the drive is malfunctioning.

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Medalist 630xe ATA Product Manual, September 1995 31

3.6 Supported BIOS

The drive uses 16 bytes of ECC with Read Long and Write Long commands. If the computer BIOS expect s less than 16 bytes, some drive diagnostics may return f alse failures (ty pically time- out errors). If so, you must reconfigure the computer to receive 4 bytes of ECC.

The BIOS revisions listed in the following table are fully compatible with the A T A interface the driv e uses. Earlier BIO S revisions than those listed may not fully support the A TA interface as implem ented on the drive.

BIOS manufactur er Version supported

American Megatrends Dated 4/9/90 or later Award 3.04 or higher Quadtel Single drive, any version

Dual drive, 3.04 or higher

Phoenix ROM BIOS Plus 286, 3.10 or higher

ROM BIOS Plus 386, 1.10 or higher

PhoenixBIOS 1.00 or higher

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