IBM DJSA-210, Travelstar 32GH, Travelstar 30GT, Travelstar 20GN, DJSA-232 Specifications

IBM

Hard disk drive specifications

Travelstar 32GH, 30GT & 20GN

2.5 inch ATA/IDE hard disk drive

DJSA-210DJSA-232Models:
DJSA-205DJSA-230

DJSA-220

Revision 4.0 7 December 2001

S07N-3499-05 Publication #1520

This page intentionally left blank.

IBM storage products - official published specifications

IBM

Hard disk drive specifications

Travelstar 32GH, 30GT & 20GN

2.5 inch ATA/IDE hard disk drive

DJSA-210DJSA-232Models:
DJSA-205DJSA-230

DJSA-220

Revision 4.0 7 December 2001

S07N-3499-05 Publication #1520

IBM storage products - official published specifications

1st Edition (Revision 0.1) S07N-3499-00 (4th April, 2000) Preliminary
2nd Edition (Revision 0.2) S07N-3499-01 (24th April, 2000) Preliminary
3rd Edition (Revision 1.0) S07N-3499-02 (9th May, 2000)
4th Edition (Revision 2.0) S07N-3499-03 (15th June, 2000) Preliminary
5th Edition (Revision 3.0) S07N-3499-04 (30th June, 2000)
6th Edition (Revision 4.0) S07N-3499-05 (7 December 2001)
The following paragraph does not apply to the United Kingdom or any country where such provisions are

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Technical information about this product is available by contacting the local IBM representative or by using the
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Internet: http://www.ibm.com/harddrive
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Note to US Government Users—Documentation related to restricted rights—Use, duplication or disclosure is subject

to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

Table of contents

List of figures

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Part 1. Functional specification

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ix

11.0 Introduction

11.1 Abbreviations

31.2 References

31.3 General caution

41.4 Drive handling precautions

52.0 General features

7

93.0 Fixed disk subsystem description

93.1 Control Electronics

93.2 Head disk assembly data

114.0 Fixed disk characteristics

114.1 Default logical drive parameters

114.2 Formatted capacity by model number

124.3 Data sheet

124.4 Cylinder allocation by model number

134.5 Performance characteristics

134.5.1 Command overhead

144.5.2 Mechanical positioning

164.5.3 Operating modes

195.0 Data integrity

195.1 Data loss on power off

195.2 Write Cache

195.3 Equipment status

205.4 WRITE safety

205.5 Data buffer test

205.6 Error recovery

205.7 Automatic reallocation

205.7.1 Nonrecovered write errors

205.7.2 Nonrecoverable read error

205.7.3 Recovered read errors

215.8 ECC

236.0 Specification

236.1 Environment

236.1.1 Temperature and humidity

246.1.2 Magnetic fields

256.2 DC power requirements

266.2.1 Energy consumption efficiency

266.3 Startup current

286.4 Reliability

286.4.1 Data reliability

286.4.2 Failure prediction (S.M.A.R.T.)

286.4.3 Cable noise interference

296.4.4 Service life and usage condition

296.4.5 Preventive maintenance

296.4.6 Load/unload

Travelstar 32GH/30GT/20GN hard disk drive specifications

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316.5 Mechanical specifications

316.5.1 Physical dimensions and weight

316.5.2 Mounting hole locations

326.5.3 Connector and jumper description

326.5.4 Mounting orientation

336.5.5 Load/unload mechanism

346.6 Vibration and shock

346.6.1 Operating vibration

356.6.2 Nonoperating vibration

356.6.3 Operating shock

366.6.4 Nonoperating shock

376.7 Acoustics

376.7.1 Sound power level

376.7.2 Discrete tone penalty

386.8 Identification labels

386.9 Electromagnetic compatibility

386.9.1 CE Mark

386.9.2 C-Tick Mark

396.10 Safety

396.10.1 UL and CSA approval

396.10.2 IEC compliance

396.10.3 German Safety Mark

396.10.4 Flammability

396.10.5 Secondary circuit protection

396.11 Packaging

417.0 Electrical interface specifications

417.1 Cabling

417.2 Interface connector

427.3 Signal definitions

437.4 Signal descriptions

467.5 Interface logic signal levels

467.6 Reset timings

477.7 PIO timings

487.8 Multiword DMA timings

497.9 Ultra DMA timings

497.9.1 Initiating Read DMA

507.9.2 Host Pausing Read DMA

517.9.3 Host Terminating Read DMA

527.9.4 Device Terminating Read DMA

537.9.5 Initiating Write DMA

547.9.6 Device Pausing Write DMA

567.9.7 Host Terminating Write DMA

577.10 Drive address setting

577.11 Drive default address setting

587.12 Addressing of HDD registers

Part 2. Interface specification

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59

618.0 General

618.1 Introduction

618.2 Terminology

639.0 Deviations from standard

6510.0 Registers

6610.1 Alternate Status Register

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6610.2 Command Register

6610.3 Cylinder High Register

6610.4 Cylinder Low Register

6710.5 Data Register

6710.6 Device Control Register

6810.7 Drive Address Register

6810.8 Device/Head Register

6910.9 Error Register

6910.10 Features Register

6910.11 Sector Count Register

7010.12 Sector Number Register

7010.13 Status Register

7111.0 General operation descriptions

7111.1 Reset response

7311.1.1 Register initialization

7411.2 Diagnostic and Reset considerations

7511.3 Power-off considerations

7511.3.1 Load/Unload

7511.3.2 Emergency unload

7611.3.3 Required power-off sequence

7611.4 Sector Addressing Mode

7611.4.1 Logical CHS addressing mode

7711.5 Power management features

7711.5.1 Power Mode

7711.5.2 Power management commands

7811.5.3 Standby/Sleep command completion timing

7811.5.4 Standby timer

7811.5.5 Status

7811.5.6 Interface Capability for Power Modes

7911.5.7 Initial Power Mode at Power On

7911.6 Advanced Power Management (ABLE-3) feature

7911.6.1 Performance Idle Mode

7911.6.2 Active Idle Mode

8011.6.3 Low Power Idle Mode

8011.6.4 Transition Time

8011.7 S.M.A.R.T. Function

8011.7.1 Attributes

8011.7.2 Attribute values

8111.7.3 Attribute thresholds

8111.7.4 Threshold exceeded condition

8111.7.5 S.M.A.R.T. commands

8111.7.6 S.M.A.R.T. operation with power management modes

8111.8 Security Mode Feature Set

8211.8.1 Security Mode

8211.8.2 Security level

8211.8.3 Password

8211.8.4 Master Password Revision Code

8211.8.5 Operation example

8611.8.6 Command table

8811.9 Protected Area Function

8811.9.1 Example for operation (In LBA Mode)

8911.9.2 Set Max security extension commands

9111.10 Address Offset Feature (vendor specific)

9211.10.1 Enable/Disable Address Offset Mode

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9211.10.2 Identify Device Data

9311.10.3 Exceptions in Address Offset Mode

9411.11 Seek Overlap

9511.12 Write Cache function

9511.13 Delayed Write function (vendor specific)

9511.13.1 Enable/Disable Delayed Write command

9611.14 Reassign Function

9611.14.1 Auto Reassign Function

9712.0 Command protocol

9712.1 Data In commands

9812.2 Data Out commands

9912.3 Nondata commands

10112.4 DMA Data Transfer commands

10313.0 Command descriptions

10713.1 Check Power Mode (E5h/98h)

10813.2 Enable/Disable Delayed Write (FAh: vendor specific)

10913.3 Execute Device Diagnostic (90h)

11013.4 Flush Cache (E7h)

11113.5 Format Track (50h: vendor specific)

11313.6 Format Unit (F7h: vendor specific)

11413.7 Identify Device (ECh)

12313.8 Identify Device DMA (EEh)

12413.9 Idle (E3h/97h)

12513.10 Idle Immediate (E1h/95h)

12613.11 Initialize Device Parameters (91h)

12713.12 Read Buffer (E4h)

12813.13 Read DMA (C8h/C9h)

13013.14 Read Long (22h/23h)

13213.15 Read Multiple (C4h)

13413.16 Read Native Max ADDRESS (F8h)

13613.17 Read Sectors (20h/21h)

13813.18 Read Verify Sectors (40h/41h)

14013.19 Recalibrate (1xh)

14113.20 Security Disable Password (F6h)

14213.21 Security Erase Prepare (F3h)

14313.22 Security Erase Unit (F4h)

14513.23 Security Freeze Lock (F5h)

14613.24 Security Set Password (F1h)

14813.25 Security Unlock (F2h)

15013.26 Seek (7xh)

15113.27 Sense Condition (F0h: vendor specific)

15213.28 Set Features (EFh)

15413.29 Set Max ADDRESS (F9h)

15613.30 Set Multiple (C6h)

15713.31 Sleep (E6h/99h)

15813.32 S.M.A.R.T. Function Set (B0h)

15913.32.1 S.M.A.R.T. Function Subcommands

16313.32.2 Device Attributes Data Structure

16813.32.3 Device Attribute Thresholds data structure

17013.32.4 S.M.A.R.T. error log sector

17313.32.5 Self-test log data structure

17413.32.6 Error reporting

17513.33 Standby (E2h/96h)

17613.34 Standby Immediate (E0h/94h)

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17713.35 Write Buffer (E8h)

17813.36 Write DMA (CAh/CBh)

18013.37 Write Long (32h/33h)

18213.38 Write Multiple (C5h)

18413.39 Write Sectors (30h/31h)

18513.40 Write Verify (3Ch: vendor specific)

18714.0 Time-out values

18915.0 Appendix

18915.1 Commands Support Coverage

19115.2 SET FEATURES Command Support Coverage

19115.3 Changed Points from DARA-XXXXXX

Index

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4Figure 1. Drive handling precautions
11Figure 2. Default logical drive parameters
11Figure 3. Formatted capacity by model number.
12Figure 4. Data sheet
12Figure 5. Cylinder allocation by model number
13Figure 6. Performance characteristics
14Figure 7. Mechanical positioning performance
14Figure 8. Full stroke seek time
15Figure 9. Single track seek time
15Figure 10. Latency time
15Figure 11. Drive ready time
16Figure 12. Operating mode
16Figure 13. Drive ready time
21Figure 14. Examples of error cases.
23Figure 15. Environmental condition
23Figure 16. Limits of temperature and humidity
24Figure 17. Magnetic flux density limits
25Figure 18. DC Power requirements
26Figure 19. Energy consumption efficiency
26Figure 20. Typical current wave form at start up of DJSA-220/210/205
27Figure 21. Typical current wave form at start up of DJSA-230
28Figure 22. Typical current wave form at start up of DJSA-232
31Figure 23. Physical dimensions and weight
31Figure 24. Mounting hole locations of the DJSA-220/210/205
32Figure 25. Mounting hole locations of the DJSA-232/230
34Figure 26. Random vibration PSD profile breakpoints (operating)
34Figure 27. Swept sine vibration
35Figure 28. Random Vibration PSD Profile Breakpoints (nonoperating)
35Figure 29. Operating shock
36Figure 30. Nonoperating shock
37Figure 31. Weighted sound power
41Figure 32. Interface connector pin assignments
42Figure 33. Table of signals
43Figure 34. Special signal definitions for Ultra DMA
46Figure 35. System reset timings
47Figure 36. PIO cycle timings
48Figure 37. Multiword DMA cycle timings
49Figure 38. Ultra DMA cycle timing (Initiating Read)
50Figure 39. Ultra DMA cycle timings (Host Pausing Read)
51Figure 40. Ultra DMA cycle timing (Host Terminating Read)
52Figure 41. Ultra DMA cycle timings (Device Terminating Read)
53Figure 42. Ultra DMA cycle timings (Initiating Write)
54Figure 43. Ultra DMA cycle timings (Device Pausing Write)
55Figure 44. Ultra DMA cycle timings (Device Terminating Write)
56Figure 45. Ultra DMA cycle timings (Host Terminating Write)
57Figure 46. Drive address setting
58Figure 47. I/O address map
65Figure 48. Register Set
66Figure 49. Alternate Status Register

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67Figure 50. Device Control Register
68Figure 51. Drive Address Register
68Figure 52. Device/Head Register
69Figure 53. Error Register
70Figure 54. Status Register
72Figure 55. Reset response table
73Figure 56. Default Register Values
73Figure 57. Diagnostic Codes
74Figure 58. Reset error register values
75Figure 59. Device behavior by ATA commands.
78Figure 60. Power conditions
83Figure 61. Initial setting
84Figure 62. Usual operation
85Figure 63. Password lost
86Figure 64. Command table for device lock operation (1 of 2)
87Figure 64. Command table for device lock operation (2 of 2)
89Figure 65. Set Max SET PASSWORD data content
90Figure 66. Set Max security mode transition
92Figure 67. Device address map before and after Set Feature
94Figure 68. Seek overlap

103Figure 69. Command set (1 of 2)
104Figure 69. Command set (2 of 2)
105Figure 70. Command Set (Subcommand)
107Figure 71. Check Power Mode command (E5h/98h)
108Figure 72. Enable/Disable Delayed Write command (FAh)
109Figure 73. Execute Device Diagnostic command (90h)
110Figure 74. Flush Cache command (E7h)
111Figure 75. Format Track command (50h)
112Figure 76. Format track data field format
113Figure 77. Format Unit command (F7h)
114Figure 78. Identify Device command (ECh)
115Figure 79. Identify device information (1 of 7)
116Figure 79. Identify device information (2 of 7)
117Figure 79. Identify device information (3 of 7)
118Figure 79. Identify device information (4 of 7)
119Figure 79. Identify device information (5 of 7)
120Figure 79. Identify device information (6 of 7)
121Figure 79. Identify device information (7 of 7)
122Figure 80. Number of cylinders/heads/sectors by models for DJSA-XXX.
123Figure 81. Identify Device DMA command (EEh)
124Figure 82. Idle command (E3h/97h)
125Figure 83. Idle Immediate command (E1h/95h)
126Figure 84. Initialize Device Parameters command (91h)
127Figure 85. Read Buffer command (E4h)
128Figure 86. Read DMA command (C8h/C9h)
130Figure 87. Read Long command (22h/23h)
132Figure 88. Read Multiple command (C4h)
134Figure 89. Read Native Max ADDRESS (F8h)
136Figure 90. Read Sectors command (20h/21h)
138Figure 91. Read Verify Sectors command (40h/41h)
140Figure 92. Recalibrate command (1xh)
141Figure 93. Security Disable Password command (F6h)
141Figure 94. Password Information for Security Disable Password command
142Figure 95. Security Erase Prepare command (F3h)

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143Figure 96. Security Erase Unit command (F4h)
143Figure 97. Erase Unit information
145Figure 98. Security Freeze Lock command (F5h)
146Figure 99. Security Set Password command (F1h)
147Figure 100. Security Set Password information
149Figure 101. Security Unlock command (F2h)
150Figure 102. Security Unlock information
151Figure 103. Seek command (7xh)
152Figure 104. Sense Condition Command (F0h)
153Figure 105. Set Features command (EFh)
155Figure 106. Set Max ADDRESS (F9h)
157Figure 107. Set Multiple command (C6h)
158Figure 108. Sleep command (E6h/99h)
159Figure 109. S.M.A.R.T. Function Set command (B0h)
161Figure 110. Log sector addresses
164Figure 111. Device Attribute Data Structure
165Figure 112. Individual Attribute Data Structure
166Figure 113. Status Flag definitions
169Figure 114. Device Attribute Thresholds Data Structure
170Figure 115. Individual Threshold Data Structure
171Figure 116. S.M.A.R.T. error log sector
172Figure 117. Error log data structure
172Figure 118. Command data structure
173Figure 119. Error data structure
174Figure 120. Self-test log data structure
175Figure 121. S.M.A.R.T. Error Codes
176Figure 122. Standby command (E2h/96h)
177Figure 123. Standby Immediate command (E0h/94h)
178Figure 124. Write Buffer command (E8h)
179Figure 125. Write DMA command (CAh/CBh)
181Figure 126. Write Long command (32h/33h)
183Figure 127. Write Multiple command (C5h)
185Figure 128. Write Sectors command (30h/31h)
187Figure 129. Time-out values
189Figure 130. Command coverage (1 of 2)
190Figure 130. Command coverage (2 of 2)
191Figure 131. SET FEATURES command coverage

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1.0 Introduction

This document describes the specifications of the following IBM 2.5 inch, ATA/IDE interface hard disk
drives:

(32 GB)• DJSA-232
(30 GB)• DJSA-230
(20 GB)• DJSA-220
(10 GB)• DJSA-210

(5 GB)• DJSA-205

Part 1 of this document defines the hardware functional specification. For details about the interface
specification refer to Part 2 of this document.

Note: These specifications are subject to change without notice.

1.1 Abbreviations

MeaningAbbreviation

32 x 1024 bytes32 KB
64 x 1024 bytes64 KB
inch"
ampA
alternating currentAC
Advanced TechnologyAT
Advanced Technology AttachmentATA
unit of sound powerBels
Basic Input/Output SystemBIOS
degrees Celsius°C
degrees Celsius per hour°C/Hour
Canadian Standards AssociationCSA
Canadian-Underwriters LaboratoryC-UL
cylinderCyl
direct currentDC
Drive Fitness TestDFT
Direct Memory AccessDMA
error correction codeECC
European Economic CommunityEEC
electromagnetic compatibilityEMC
Error Recovery ProcedureERP
electrostatic dischargeESD
Federal Communications CommissionFCC
field replacement unitFRU
gravity, a unit of forceG
1 000 000 000 bitsGb
1 000 000 000 bytesGB

2

/Hz

1 000 000 000 bits per square inchGb/sq.in.
(32 ft/sec)
groundGND
hexadecimalh
head disk assemblyHDA

2

per HertzG

Travelstar 32GH/30GT/20GN hard disk drive specifications

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hard disk driveHDD
hertzHz
InputI
integrated lead suspensionILS
impedanceimped
Input/OutputI/O
International Standards OrganizationISO
1,000 bytesKB
1,000,000 bits per secondMbits/sec
1,000 Bit Per InchKbpi
kilogram (force)-centimeterkgf-cm
kilohertzKHz
logical block addressingLBA
unit of A-weighted sound powerLw
meterm
maximummax. or Max.
1,000,000 bytesMB
1,000,000 Bit per secondMbps
1,000,000 Bit per secondMb/sec
1,000,000 bytes per secondMB/sec
1,000 ,00 bits per square inchMb/sq.in.
megahertzMHz
Machine Level ControlMLC
millimetermm
millisecondms
microsecondus
numberNo. or #
oscillations per minuteoct/min
OutputO
Open DrainOD
Programmed Input/OutputPIO
power on hoursPOH
populationPop.
part numberP/N
peak-to-peakp-p
power spectral densityPSD
radiated electromagnetic susceptiblityRES
radio frequency interferenceRFI
relative humidityRH
per cent relative humidity% RH
root mean squareRMS
revolutions per minuteRPM
resetRST
read/writeR/W
secondsec
sectors per trackSect/Trk
secondary low voltageSELV
Self-monitoring, analysis, and reporting technologyS.M.A.R.T
tracks per inchTPI
trackTrk.
transistor-transistor logicTTL
Underwriters LaboratoryUL
voltV
Verband Deutscher ElectrotechnikerVDE

Travelstar 32GH/30GT/20GN hard disk drive specifications

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wattW
transistor-transistor tristate logic3-state

1.2 References

! ATA/ATAPI-5 (T13/1321D Revision D)

1.3 General caution

! Do not apply force to the top cover (See Figure 1 on page 4).
! Do not cover the breathing hole on the top cover (See Figure 1 on page 4).
! Do not touch the interface connector pins or the surface of the printed circuit board.
! The drive can be damaged by shock or ESD (Electric Static Discharge). Any damages incurred to the

drive after removing it from the shipping package and the ESD protective bag are the responsibility of
the user.

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1.4 Drive handling precautions

Do not press on the drive cover during handling.

Figure 1. Drive handling precautions

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2.0 General features

! Height MCC Compliance

! (DJSA-232/230) 2.5 inch, 12.5±0.2 mm
! (DJSA-220/210/205) 2.5 inch, 9.5±0.2 mm

! Drive formatted capacity by model number

! (DJSA-232) 32 GB
! (DJSA-230) 30 GB
! (DJSA-220) 20 GB
! (DJSA-210) 10 GB

! (DJSA-205) 5 GB
! 512 bytes/sector
! AT Interface (Enhanced IDE) conforming to ATA-4
! Integrated controller
! No ID recording format
! Coding: 32/34
! Multizone recording
! Enhanced ECC on-the-fly

! 40 bytes 3 way Interleaved Reed Solomon Code

! 5 bytes per interleave on-the-fly correction

! Segmented Buffer with write cache

! 2 MB - Upper 174KB is used for firmware (DJSA-232/230/220)

! 512 KB - Upper 128KB is used for firmware (DJSA-210/205)
! Fast data transfer rate (up to 66.6 MB/sec)
! Media data transfer rate

! 203 (outer zone) - 109 (inner zone) Mb/sec (DJSA-230/220/210/205)

! 223 (outer zone) - 120 (inner zone) Mb/sec (DJSA-232)
! Average seek time 12 ms for read
! Closed-loop actuator servo (Embedded Sector Servo)
! Rotary voice coil motor actuator
! Load/Unload mechanism
! Mechanical latch
! Adaptive power save control

! 0.65 W at idle state (DJSA-220/210/205)

! 0.85 W at idle state (DJSA-230)

! 0.9 W at idle state (DJSA-232)

Travelstar 32GH/30GT/20GN hard disk drive specifications

5

! Power on to ready

! 5.0 sec (DJSA-232)

! 3.3 sec (DJSA-230)

! 3.0 sec (DJSA-220/210/205)

! Nonoperating Shock

! 700 G 1ms (DJSA-232/230)

! 800 G 1 ms (DJSA-220/210/205)

! Operating Shock

! 150 G 2 ms (DJSA-232)

! 175 G 2 ms (DJSA-230/220/210/205)

! Address Offset Feature to support DFT implementation

Note: Mounting screw position is

! incompatible with DBOA,DMCA, DCRA, DSOA, DPRA models.
! compatible with DTNA, DLGA, DDLA, DTCA, DPLA, DYKA, DYLA, DADA, DKLA, DBCA, DCXA,

DCYA, DARA models.

Travelstar 32GH/30GT/20GN hard disk drive specifications

6

Part 1. Functional specification

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3.0 Fixed disk subsystem description

3.1 Control Electronics

The control electronics works with the following functions.

! AT Interface Protocol
! Embedded Sector Servo
! No-ID formatting
! Multizone recording
! Code: 32/34
! ECC on-the-fly
! Enhanced Adaptive Battery Life Extender

3.2 Head disk assembly data

The following technologies are used in each DJSA-XXX model.

! Pico Slider
! Smooth glass disk
! GMR head
! Integrated lead suspension (ILS)
! Load/unload mechanism
! Mechanical latch

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4.0 Fixed disk characteristics

4.1 Default logical drive parameters

The following table lists the default logical drive parameters by drive model number.

Model

Figure 2. Default logical drive parameters

Capacity

(GB)

Word 1

(Cyl)

Word 3

(Head)

Word 6

(Sect/Trk)

4.2 Formatted capacity by model number

Physical Layout

Logical Layout

Number of Sectors/
Track

Total Logical Data
Bytes

Word
60–61
(LBA)

Customer Usable

Data Bytes

32,003,112,9603B9C460h631616,38332DJSA-232
30,005,821,44037E3E40h631616,38330DJSA-230
20,003,880,9602542980h631616,38320DJSA-220
10,056,130,56012BB230h631616,38310DJSA-210

5,000,970,240950A60h631510,3365DJSA-205

DJSA-205DJSA-210DJSA-220DJSA-230DJSA-232Description

512512512512512Bytes per Sector

293–560293–560293–560293–560256-469Sectors per Track

12468Number of Heads
11234Number of Disks

1516161616Number of Heads
6363636363

10,33619,48538,76058,14062,010Number of Cylinders

9,767,52019,640,88039,070,08058,605,12062,506,080Number of Sectors

5,000,970,24010,056,130,56020,003,880,96030,005,821,44032,003,112,960

Figure 3. Formatted capacity by model number.

Travelstar 33GH/30GT/20GN hard disk drive specifications

11

4.3 Data sheet

Interface transfer rate (MB/sec)
ULTRA DMA 66

Figure 4. Data sheet

4.4 Cylinder allocation by model number

DJSA-230/220/210/205DJSA-232

42005400Rotational Speed (RPM)

109-203 Mbps120-223 MbpsData transfer rates (buffer to/from media)

66.6 MB/sec66.6 MB/sec
451399Recording density (Kbpi) (Max.)

3836Track density (Ktpi)

17.114.4Areal density (Gb/sq.in.)(Max.)
1616Number of zones

DJSA-230/220/210/205DJSA-232

No. of Sectors/TrkCylinderNo. of Sectors/TrkCylinderZone

5600–7674690–2550
560768–1535460256–10231
5331536–35834481024–30712
5203584–48634263072–40953
5064864–58874164096–56314
4805888–74234005632–71675
4807424–89593847168–89596
4538960–107513628960–107517
44010752–1203135210752–122878
42012032–1356735212288–135679
40013568–1561533613568–1561510
38015616–1689532015616–1740711
36016896–1868729817408–1894312
34018688–1996728818944–1996713
32019968–2201527219968–2124714
29322016–2278325621248–2150315

Figure 5. Cylinder allocation by model number

Travelstar 33GH/30GT/20GN hard disk drive specifications

12

4.5 Performance characteristics

File performance is characterized by the following parameters:

! Command Overhead
! Mechanical Positioning

! Seek Time

! Latency
! Data Transfer Speed
! Buffering Operation (Look ahead/Write Cache)

Note: All the above parameters contribute to file performance. There are other parameters which contri­bute to the performance of the actual system. This specification defines the essential file characteristics.
This specification does not include the system throughput as this is dependent upon the system and the
application.

The following table gives a typical value for each parameter. The detail descriptions are found in
section 5.0.

Function

Buffer-host data transfer (MB/s) (PIO Mode-4)

(Ultra DMA Mode-4)

Figure 6. Performance characteristics

Typical

DJSA-232

16.6

66.6

Typical

DJSA-230

16.6

66.6

Typical

DJSA-220/210/205

121212Average Random Seek Time For Read (ms)
131313Average Random Seek Time For Write (ms)

420042005400Rotational Speed (RPM)

3.03.35.0Power-on-to-ready (sec)

1.01.01.0Command overhead (ms)

109–203 109-203120-223Disk-buffer data transfer (Mb/s)

16.6

66.6

4.5.1 Command overhead

Command overhead time is defined as the interval from the time that a drive receives a command to the
time that the actuator starts its motion.

Travelstar 33GH/30GT/20GN hard disk drive specifications

13

4.5.2 Mechanical positioning

4.5.2.1 Average seek time (including settling)

Max. (ms)Typical (ms)Command Type

1412Read
1513Write

Figure 7. Mechanical positioning performance

Typical and Max. are defined throughout the performance specification as follows:

Average of the drive population tested at nominal environmental and voltage conditions.Typical

Max.

The seek time is measured from the start of motion of the actuator to the start of a reliable read or write
operation. A reliable read or write operation implies that error correction/recovery is not employed to cor­rect arrival problems. The Average Seek Time is measured as the weighted average of all possible seek
combinations.

Weighted Average =

Maximum value measured on any one drive over the full range of the environmental and
voltage conditions. (See section 6.1 on Environment and section 6.2 on DC power require­ments.)

max.

Σ (max. + 1 – n)(Tn

n=1

___________________________________________________

(max. + 1)(Tnin + Tn

+ Tn

in

out

)

out

)

Where: max. = maximum seek length
n = seek length (1-to-max.)
Tn
Tn

= inward measured seek time for an n-track seek

in

= outward measured seek time for an n-track seek

out

4.5.2.2 Full stroke seek

Max. (ms)Typical (ms)Command Type

3023.0Read

3124.0Write

Figure 8. Full stroke seek time

Full stroke seek time in milliseconds is the average time of 1000 full stroke seeks.

Travelstar 33GH/30GT/20GN hard disk drive specifications

14

4.5.2.3 Single track seek time (without command overhead, including settling)

Maximum (ms)Typical (ms)Command Type

4.02.5Read

4.53.0Write

Figure 9. Single track seek time

Single track seek is measured as the average of one (1) single track seek from every track in both
directions (inward and outward).

4.5.2.4 Average latency

Model

Figure 10. Latency time

4.5.2.5 Drive ready time

Figure 11. Drive ready time

Ready

The condition in which the drive is able to perform a media access command
(for example—read, write) immediately.
This includes the time required for the internal self diagnostics.Power On To Ready

Rotational Speed

(RPM)

Time/1 revolution

(ms)

Average Latency

(ms)

5.511.15400DJSA-232

7.114.34200DJSA-230/220/210/205

Max. (sec)Typical (sec)ModelCondition

9.55.0DJSA-232Power On To Ready

9.53.3DJSA-230Power On To Ready

9.53.0DJSA-220/210/205Power On To Ready

Travelstar 33GH/30GT/20GN hard disk drive specifications

15

4.5.3 Operating modes

Operating mode Description

Spin-Up: Start up time period from spindle stop or power down.
Seek: Seek operation mode
Write: Write operation mode
Read: Read operation mode
Performance: The device is capable of responding immediately to idle media access requests.

All electronic components remain powered and the full frequency servo remains
operational.

Active idle: The device is capable of responding immediately to media access requests.

Some circuitry—including servo system and R/W electronics—is in power saving
mode. The head is parked near the mid-diameter the disk without servoing.
A device in Active idle mode may take longer to complete the execution of a
command because it must activate that circuitry.

Low power idle: The head is unloaded onto the ramp position.

The spindle motor is rotating at full speed.

Standby: The device interface is capable of accepting commands.

The spindle motor is stopped. All circuitry but the host interface is in power saving
mode.
The execution of commands is delayed until the spindle becomes ready.

Sleep: The device requires a soft reset or a hard reset to be activated.

All electronics, including spindle motor and host interface, are shut off.

Figure 12. Operating mode

4.5.3.1 Mode transition time

Transition

Time (max.)

9.54.5IdleStandbyDJSA-232

9.52.0IdleStandby DJSA-230/220

9.51.8IdleStandbyDJSA-210/205

Figure 13. Drive ready time

ToFromModel

Transition
Time (typ)

4.5.3.2 Operating mode at power on

The device goes into Idle mode after power on or hard reset as an initial state. Initial state may be
changed to Standby mode using pin C on the interface connector. Refer to section 7.10 on page 57,
"Drive address setting", for details.

Travelstar 33GH/30GT/20GN hard disk drive specifications

16

4.5.3.3 Adaptive power save control

The transient timing from Performance Idle mode to Active Idle mode, from Active Idle mode to Low Power
Idle mode, and from Low Power Idle mode to Standby mode is controlled adaptively according to the
access pattern of the host system in order to reduce the average power dissipation.

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5.0 Data integrity

5.1 Data loss on power off

! Data loss will not be caused by a power off during any operation but the write operation.
! A power off during a write operation causes the loss of any received or resident data that has not

been written onto the disk media.

! A power off during a write operation might make a maximum of one sector of data unreadable. This

state can be recovered by a rewrite operation.

5.2 Write Cache

When the write cache is enabled the write command may complete before the actual disk write operation
finishes. This means that a power off, even after the write command completion, could cause the loss of
data that the drive has received but not yet written onto the disk.

In order to prevent this data loss, confirm the completion of the actual write operation prior to the power off
by issuing a

! Soft reset
! Hard reset
! Flush Cache command
! Standby command
! Standby Immediate command
! Sleep command

Confirm the command’s completion.

5.3 Equipment status

The equipment status is available to the host system any time the drive is not ready to read, write, or seek.
This status normally exists at the power-on time and will be maintained until the following conditions are
satisfied:

! The access recalibration/tuning is complete.
! The spindle speed meets the requirements for reliable operation.
! The self-check of the drive is complete.

The appropriate error status is made available to the host system if any of the following conditions occur
after the drive has become ready:

! The spindle speed lies outside the requirements for reliable operation.
! The occurrence of a Write Fault condition.

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19

5.4 WRITE safety

The drive ensures that the data is written into the disk media properly. The following conditions are
monitored during a write operation. When one of these conditions exceeds the criteria, the write operation
is terminated and the automatic retry sequence is invoked.

! Head off track
! External shock
! Low supply voltage
! Spindle speed out of tolerance
! Head open/short

5.5 Data buffer test

The data buffer is tested at power on reset and when a drive self-test is requested by the host. The test
consists of a write/read '00'x and 'ff'x pattern on all buffers.

5.6 Error recovery

Errors occurring on the drive are handled by the error recovery procedure.
Errors that are uncorrectable after application of the error recovery procedure are reported to the host

system as nonrecoverable errors.

5.7 Automatic reallocation

The sectors that show some errors may be reallocated automatically when specific conditions are met.
The drive does not report any auto reallocation to the host system. The conditions for auto reallocation are
described below.

5.7.1 Nonrecovered write errors

When a write operation cannot be completed after the Error Recovery Procedure (ERP) is fully carried out,
the sector(s) are reallocated to the spare location. An error is reported to the host system only when the
write cache is disabled and the auto reallocation has failed.

5.7.2 Nonrecoverable read error

When a read operation fails after ERP is fully carried out, a hard error is reported to the host system. This
location is registered internally as a candidate for the reallocation. When a registered location is specified
as a target of a write operation, a sequence of media verification is performed automatically. When the
result of this verification meets the required criteria, this sector is reallocated.

5.7.3 Recovered read errors

When a read operation for a sector fails and is recovered at the specific ERP step, the sector is reallo­cated automatically. A media verification sequence may be run prior to the reallocation according to the
predefined conditions.

Travelstar 32GH/30GT/20GN hard disk drive specifications

20

5.8 ECC

The 40 byte three interleaved ECC processor provides user data verification and correction capability. The
first 4 bytes of ECC are check bytes for user data and the other 36 bytes are Read Solomon ECC. Each
interleave has 12 bytes for ECC. Hardware logic corrects up to 15 bytes (5 bytes for each interleave)
errors on-the-fly.

Following are some examples of error cases. An "O" means that the byte contains no error. An "X" means
that at least one bit of the byte is bad.

On The Fly correctable

1 1 1 1 1 1 1 1

Byte # 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7

Interleave

A B C A B C A B C A B C A B C A B C

Error byte # for
each interleave

A B

C

Error pattern

Error pattern

Uncorrectable

Byte # 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7

Interleave

Error pattern

Error pattern

X X X X X X X X X X X X X X X O O O

X X X X X X X X X O O O X X X X X X

A B C A B C A B C A B C A B C A B C

X X X X X X X X X X X X X X X X O O

X O O X O O X O O X O O X O O X O O

Figure 14. Examples of error cases.

1 1 1 1 1 1 1 1

5

5

5

Error byte # for
each interleave

A

6

6

5 5

C

B

5

5

0 0

5

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21

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6.0 Specification

6.1 Environment

6.1.1 Temperature and humidity

Operating conditions

Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude

Nonoperating conditions

Temperature
Relative humidity
Maximum wet bulb temperature
Maximum temperature gradient
Altitude

Note: The system is responsible for providing sufficient air movement to maintain surface temperatures below
60°C at the center of top cover and below 63°C at the center of the drive circuit board assembly.

Figure 15. Environmental condition

5 to 55°C (See Note)
8 to 90% noncondensing

29.4°C noncondensing
20°C/hour
–300 to 3048 m (10,000 ft)

–40 to 65°C
5 to 95% noncondensing
40°C noncondensing
20°C/hour
–300 to 12,192 m (40,000 ft)

Specificati on ( Environm ent)

100

90
80
70
60

Non Operating

50
40

Relative Humidity (%)

30
20
10

0

-45 -35 -25 -15 -5 5 15 25 35 45 55 65

Figure 16. Limits of temperature and humidity

31'C/90%

Operating

Temperatu r e ( degC)

41'C/95%

Wet Bul b 40'C

WetBulb29.4'C

65'C/23

55'C/15

Travelstar 32GH/30GT/20GN hard disk drive specifications

23

6.1.1.1 Corrosion test

The hard disk drive must be functional and show no signs of corrosion after being exposed to a
temperature humidity stress of 50°C/90%RH (relative humidity) for one week followed by a temperature
humidity drop to 25°C/40%RH in 2 hours.

6.1.2 Magnetic fields

The disk drive will withstand radiation and conductive noise within the limits shown below.

6.1.2.1 Radiation noise

The disk drive shall work without degradation of the soft error rate under the following magnetic flux
density limits at the enclosure surface.

Limits (Gauss RMS)Frequency (KHz)

50–60

2.561–100
1101–200

0.5201–400

Figure 17. Magnetic flux density limits

6.1.2.2 Conductive noise

The disk drive shall work without soft error degradation in the frequency range from DC to 20 Mhz injected
through any two of the mounting screw holes of the hard disk drive (HDD) when an AC current of up to 45
mA (p-p) is applied through a series 50 ohm resistor connected to any two mounting screw holes.

Travelstar 32GH/30GT/20GN hard disk drive specifications

24

6.2 DC power requirements

Connection to the product should be made in isolated secondary circuits (SELV). The voltage specifica­tions are applied at the power connector of the drive.

NotesRequirementsItem

+5 Volt dcNominal Supply

*1100 mV p-p max.Power Supply Ripple (0–20 MHz)
*2±5%Tolerance

7–100 msSupply rise time

Supply Current (+5.00 V dc case)

Population Mean

(nominal condition)

DJSA-230DJSA-232Watts (RMS Typical)

Notes:
*1. The maximum fixed disk ripple is measured at the 5 volt input of the HDD.
*2. The disk drive shall not incur damage for an over voltage condition of +25% (maximum duration of

20 ms) on the 5 volt nominal supply.
*3. The idle current is specified at an inner track.
*4. The read/write current is specified based on three operations of 63 sector read/write per 100 ms.
*5. The seek average current is specified based on three operations per 100 ms.
*6. The worst case operating current includes motor surge.

Figure 18. DC Power requirements

DJSA-

220/210/205

0.85 0.951.3Active Idle average

0.65 0.650.9Low Power Idle average

2.1 2.22.7Write average

0.25 0.250.25Standby

0.1 0.10.1Sleep

3.3 3.33.8Average from power on to ready

Notes

*31.85 1.852.0Performance Idle average

*42.0 2.12.5Read average

*52.3 2.32.6Seek average

*64.7 4.75.0Startup (maximum peak)

Travelstar 32GH/30GT/20GN hard disk drive specifications

25

6.2.1 Energy consumption efficiency

Model

Figure 19. Energy consumption efficiency

Note: Energy consumption efficiency is calculated as Power Consumption of Low Power Idle Watt/
Capacity (GB).

6.3

Startup current

Energy consumption efficiency

(Watt/Capacity(GB))

0.03DJSA-232/230/220

0.07DJSA-210/205

Figure 20. Typical current wave form at start up of

Travelstar 32GH/30GT/20GN hard disk drive specifications

DJSA-220/210/205

26

Figure 21. Typical current wave form at start up

of DJSA-230

Travelstar 32GH/30GT/20GN hard disk drive specifications

27

Figure 22. Typical current wave form at start up of DJSA-232

6.4 Reliability

6.4.1 Data reliability

13

! Probability of not recovering data is 1 in 10
! ECC implementation.

On-the-fly correction—performed as a part of read channel function—recovers up to 15 symbols of
error in 1 sector (1 symbol is 8 bits).

6.4.2 Failure prediction (S.M.A.R.T.)

DJSA-XXX supports Self-monitoring, analysis and reporting technology (S.M.A.R.T.) function. The details
are described in 11.7, "S.M.A.R.T. Function," on page 80 and 13.32, "S.M.A.R.T. Function Set (B0h),"
on 159.

6.4.3 Cable noise interference

To avoid any degradation of performance throughput or error when the interface cable is routed on top or
comes in contact with the HDA assembly, the drive must be grounded electrically to the system frame by
four screws. The common mode noise or voltage level difference between the system frame and power
cable ground or AT interface cable ground should be in the allowable level specified in the power require­ment section.

bits read.

Travelstar 32GH/30GT/20GN hard disk drive specifications

28

6.4.4 Service life and usage condition

The drive is designed to be used under the following conditions:

! The drive should be operated within specifications of shock, vibration, temperature, humidity, altitude,

and magnetic field.

! The drive should be protected from ESD.
! The breathing hole in the top cover of the drive should not be covered.
! Force should not be applied to the cover of the drive.
! The specified power requirements of the drive should be satisfied.
! The drive frame should be grounded electrically to the system through four screws.
! The drive should be mounted with the recommended screw depth and torque.
! The interface physical and electrical requirements of the drive should satisfy ATA-4.
! The power-off sequence of the drive should comply with the 6.4.6.2,"Required power-off sequence.”

Service life of DJSA-2xx is approximately 5 years or 20,000 power on hours, whichever comes first under
the following assumptions.

! Less than 333 power on hours per month.
! Seeking/Writing/Reading operation is less than 20% of power on hours.

This does not represent any warranty or warranty period. Applicable warranty and warranty period are
covered by the purchase agreement.

6.4.5 Preventive maintenance

None.

6.4.6 Load/unload

The product supports a minimum of 300,000 normal load/unloads.
Load/unload is a functional mechanism of the hard disk drive. It is controlled by the drive micro code.

Specifically, unloading of the heads is invoked by the following commands:

! Hard reset
! Soft reset
! Standby
! Standby immediate
! Sleep

Load/unload is also invoked as one of the idle modes of the drive.
The specified start/stop life of the product assumes that load/unload is operated normally, not in

emergency mode.

6.4.6.1 Emergency unload

When hard disk drive power is interrupted while the heads are still loaded the micro code cannot operate
and the normal 5 volt power is unavailable to unload the heads. In this case, normal unload is not

Travelstar 32GH/30GT/20GN hard disk drive specifications

29

possible. The heads are unloaded by routing the back EMF of the spinning motor to the voice coil. The
actuator velocity is greater than the normal case and the unload process is inherently less controllable
without a normal seek current profile.

Emergency unload is intended to be invoked in rare situations. Because this operation is inherently
uncontrolled, it is more mechanically stressful than a normal unload.

DJSA-XXX supports a minimum of 20,000 emergency unloads.

6.4.6.2 Required Power-Off Sequence

The required BIOS sequence for removing power from DJSA-XXX is as follows:

! Step 1: Issue one of the following commands.

! Soft Reset

! Standby

! Standby immediate

! Sleep

Note: Do not use the Flush Cache command for the power off sequence because this command
does not invoke Unload.

! Step 2: Wait until the Command Complete status is returned.

In a typical case 350 ms are required for the command to finish completion; however, the BIOS time

out value needs to be 30 seconds considering error recovery time. Refer to section 14.0, "Time-out

values," on page 187.

! Step 3: Terminate power to HDD.

This power-down sequence should be followed for entry into any system power-down state, system
suspend state, or system hibernation state. In a robustly designed system, emergency unload is limited to
rare scenarios, such as battery removal during operation.

6.4.6.3 Power switch design considerations

In systems that use DJSA-XXX, consideration should be given to the design of the system power switch.
IBM recommends that the switch operate under control of the BIOS, as opposed to being hard-wired. The

same recommendation is made for cover-close switches. When a hard-wired switch is turned off,
emergency unload occurs, as well as the problems cited in section 5.1, "Data loss by power off" on
page 19 and section 5.2, “Write Cache” on page 19.

6.4.6.4 Test considerations

Start/stop testing is classically performed to verify head/disk durability. In the case of DJSA-XXX the
heads do not land on the disk, so this type of test should be viewed as a test of the load/unload function.

Start/Stop testing should be done by commands through the interface, not
Simple power cycling of DJSA-XXX invokes the emergency unload mechanism and subjects the HDD to
nontypical mechanical stress.

Power cycling testing may be required to test the boot-up function of the system. In this case IBM
recommends that the power-off portion of the cycle contain the sequence specified in section 6.4.6.2,
"Required Power-Off Sequence” on page 30. Again, if this is not done, the emergency unload function is
invoked and nontypical stress results.

by power cycling the drive.

Travelstar 32GH/30GT/20GN hard disk drive specifications

30

6.5 Mechanical specifications

6.5.1 Physical dimensions and weight

The following figure lists the dimensions for the 2.5 inch hard disk drive form factor.

Figure 23. Physical dimensions and weight

6.5.2 Mounting hole locations

The mounting hole locations and size of the hard disk drive are shown below.

Weight (gram)Length (mm)Width (mm)Height (mm)Model

155 Max.100.2±0.2569.85±0.2512.5±0.2DJSA-232
135 Max.100.2±0.2569.85±0.2512.5±0.2DJSA-230

99 Max.100.2±0.2569.85±0.259.5±0.2DJSA-220/210/205

Figure 24. Mounting hole locations of

Travelstar 32GH/30GT/20GN hard disk drive specifications

the DJSA-220/210/205

31

Figure 25. Mounting hole locations of

the DJSA-232/230

6.5.3 Connector and jumper description

A jumper is used to designate the drive address as either master or slave. The jumper setting method is
described in section 7.10.

Connector specifications are included in Part 2 of this document—Electrical Interface specifications.

6.5.4 Mounting orientation

The drive will operate in all axes (6 directions) and will stay within the specified error rates when tilted
±5 degrees from these positions.

Performance and error rate will stay within specification limits if the drive is operated in the other
permissible orientations from which it was formatted. Thus a drive formatted in a horizontal orientation will
be able to run vertically and vice versa.

The recommended mounting screw torque is 3.0±0.5 kgf-cm.
The recommended mounting screw depth is 3.0±0.3 mm for bottom and 3.5±0.5 mm for horizontal

mounting.

Travelstar 32GH/30GT/20GN hard disk drive specifications

32

The user should use appropriate screws or equivalent mounting hardware to mount the drive securely
enough to prevent excessive motion or vibration of the drive at seek operation or spindle rotation.

6.5.5 Load/unload mechanism

The head load/unload mechanism is provided to protect the disk data during shipping, movement, or
storage. Upon power down, a head unload mechanism secures the heads at the unload position. See

6.6.4, "Nonoperating shock", on page 36 for additional details.

Travelstar 32GH/30GT/20GN hard disk drive specifications

33

6.6 Vibration and shock

All vibration and shock measurements in this section are for hard disk drives without mounting attach­ments for systems. The input level shall be applied to the normal drive mounting points.

Vibration tests and shock tests are to be conducted by mounting the drive to a table using the bottom four
mounting holes.

6.6.1 Operating vibration

The disk drive will operate without a hard error while being subjected to the following vibration levels.

6.6.1.1 Random vibration

The test will be 30 minutes of random vibration using the power spectral density (PSD) levels below. The

(Root Mean Square).

vibration test level is 0.67 G RMS

Random vibration PSD profile Breakpoint

Hz

DJSA-205/210/220/230/232

m x 10

n

G2/Hz

2.0 x E–5 5

1.1 x E–317

1.1 x E–345

8.0 x E–348

8.0 x E–362

1.0 x E–365

1.0 x E–3150

5.0 x E–4200

5.0 x E–4500

Figure 26. Random vibration PSD profile breakpoints (operating)

6.6.1.2 Swept sine vibration

Swept sine vibration (zero to

peak 5 to 500 to 5 Hz sine wave)

DJSA-232

1 G (300 Hz) - 0.33 G (350 Hz)

0.33 G (350-500 Hz)

Figure 27. Swept sine vibration

Travelstar 32GH/30GT/20GN hard disk drive specifications

34

Sweep rate (oct/min)

2.01 G (5-500 Hz)DJSA-205/210/220/230

2.01 G (5-300 Hz)

6.6.2 Nonoperating vibration

The disk drive withstands the following vibration levels without any loss or permanent damage.

6.6.2.1 Random vibration

The test consists of a random vibration applied in each of three mutually perpendicular axes with the time
duration of 15 minutes per axis. The PSD levels for the test simulating the shipping and relocation envi­ronment is shown below.

2

G

/HzHz

02.5

0.035

0.0240

0.02500

Note: Overall RMS level of vibration is 3.01 G.

Figure 28. Random Vibration PSD Profile Breakpoints (nonoperating)

6.6.2.2 Swept sine vibration

! 5 G (zero-to-peak), 5 to 500 to 10 Hz sine wave
! 0.5 oct/min sweep rate
! 25.4 mm (peak-to-peak) displacement, 5 to 10 to 5 Hz

6.6.3 Operating shock

The hard disk drive meets the following criteria while operating in the conditions described below.
The shock test consists of ten shock inputs in each axis and direction for a total of 60.
There must be a minimum 3 seconds delay between shock pulses.
The disk drive will operate without a hard error while being subjected to the following half-sine shock

pulse.

Duration of 11 msDuration of 2 msModel

15 G150 GDJSA-232
15 G175 GDJSA-230/220/210/205

Figure 29. Operating shock

The input level shall be applied to the normal disk drive subsystem mounting points used to secure the
drive in a normal system.

Travelstar 32GH/30GT/20GN hard disk drive specifications

35

6.6.4 Nonoperating shock

The drive withstands the following half-sine shock pulse without any data loss or permanent damage.

Duration of 11 msDuration of 1 msModel

120 G700 GDJSA-232/230
120 G800 GDJSA-220/210/205

Figure 30. Nonoperating shock

The shocks are applied for each direction of the drive for three mutually perpendicular axes, one axis at a
time. Input levels are measured on a base plate where the drive is attached with four screws.

Travelstar 32GH/30GT/20GN hard disk drive specifications

36

6.7 Acoustics

6.7.1 Sound power level

The criteria of A-weighted sound power level are described below.
Measurements are to be taken in accordance with ISO 7779. The mean of the sample of 40 drives is to be

less than the typical value. Each drive is to be less than the maximum value. The drives are to meet this
requirement in both board down orientations.

Maximum (Bels)Typical (Bels)A-weighted Sound Power

DJSA-232

2.72.5Idle

3.83.5Operating

DJSA-230

3.42.8Idle

3.83.5Operating

DJSA-220/210/205

3.42.8Idle

3.63.3Operating

Figure 31. Weighted sound power

The background power levels of the acoustic test chamber for each octave band are to be recorded.
Sound power tests are to be conducted with the drive supported by spacers so that the lower surface of

the drive be located 25±3 mm above from the chamber floor. No sound absorbing material shall be used.
The acoustical characteristics of the disk drive are measured under the following conditions.

Mode definitions

! Idle mode—Power on, disks spinning, track following, unit ready to receive and respond to control

line commands.

! Operating mode—Continuous random cylinder selection and seek operation of actuator with a

dwell time at each cylinder. Seek rate for the drive can be calculated as shown below.
! Ns = 0.4/(Tt + T1)
where:

! Ns = average seek rate in seeks/s
! Tt = published seek time from one random track to another without including rotational latency
! T1= equivalent time, in seconds, for the drive to rotate by half a revolution

6.7.2 Discrete tone penalty

Discrete tone penalties are added to the A-weighted sound power (Lw) with the following formula only
when determining compliance.

Lwt(spec) = Lw = 0.1Pt + 0.3 < 4.0 (Bels)
Lw = A-weighted sound power level

Travelstar 32GH/30GT/20GN hard disk drive specifications

37

Pt = Value of desecrate tone penalty = dLt – 6.0(dBA)
dLt = Tone-to-noise ratio taken in accordance with ISO 7779 at each octave band.

6.8 Identification labels

The following labels are affixed to every disk drive.

! A label is placed on the top of the HDA containing the statement "Made by IBM" or equivalent,

Part No., EC No. and FRU No.

! A bar code label placed on the disk drive based on user request. The location on the disk drive is to

be designated in the drawing provided by the user.

! Labels containing the vendor's name, disk drive model number, serial number, place of manufacture

and UL/CSA logos.

! The presence of labels containing jumper information depends on customers.

6.9 Electromagnetic compatibility

The drive, when installed in a suitable enclosure and exercised with a random accessing routine at
maximum data rate, shall meet the following worldwide electromagnetic compatibility (EMC) requirements:

! United States FCC (Federal Communications Commission) Rules and Regulations (Class B), Part 15.
! RFI Suppression German National Requirements.
! RFI Japan VCCI Requirements of IBM products.
! EU EMC Directive Technical Requirements and Conformity Assessment Procedures.

6.9.1 CE Mark

The product is certified for compliance to EC directive 89/336/EEC. The CE marking for the certification
appears on the drive.

6.9.2 C-Tick Mark

The product complies with the following Australian EMC standard.
Limits and methods of measurement of radio disturbance characteristics of information technology

equipment, AS/NZS 3548:1995 Class B.

Travelstar 32GH/30GT/20GN hard disk drive specifications

38

6.10 Safety

6.10.1 UL and CSA approval

The product is qualified per UL (Underwriters Labratory) 1950 Third Edition and CAN/CSA C22.2
No.950-M95 Third Edition, for the use in Information Technology Equipment, including Electric Business
Equipment. The UL Recognition, or the CSA certification, is maintained for the product life. The UL and
C-UL recognition mark • • or CSA monogram for CSA certification • • appears on the drive.

6.10.2 IEC compliance

All DJSA-XXX drives comply with IEC 950:1991 +A1-4.

6.10.3 German Safety Mark

All DJSA-XXX drives are approved by TUV on Test Requirement: EN 60950:1992+A1-4, but the GS mark
has not been obtained.

6.10.4 Flammability

The printed circuit boards used in this product are made of material with a UL recognized flammability
rating of V-1 or better. The flammability rating is marked or etched on the board. All other parts not
considered electrical components are made of material with a UL recognized flammability rating of V-1 or
better except minor mechanical parts.

6.10.5 Secondary circuit protection

This product utilizes printed circuit wiring that must be protected against the possibility of sustained
combustion due to circuit or component failures as defined in C-B 2-4700-034 (Protection Against
Combustion). Adequate secondary over current protection is the responsibility of the using system.

The user must protect the hard disk drive from its electrical short circuit problem. A 10 amp limit is
required for safety purpose.

6.11 Packaging

Drives will be packed in ESD protective bags and shipped in appropriate containers.

Travelstar 32GH/30GT/20GN hard disk drive specifications

39

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7.0 Electrical interface specifications

7.1 Cabling

The maximum cable length from the host system to the hard disk drive shall not exceed 18 inches.

7.2 Interface connector

The signal connector for AT attachment is designed to mate with the 50 pin plug specified in Annex A,
Connectors and Cable Assembly, of the ATA/ATAPI-5 document.

The figure below and Figure 6.5.2 on page 31 show the connector location and physical pin location.

Pin

43

44

19

22

Pin

1

AC

D

2

B

Note 1: Pin position 20 is left blank for correct connector insertion.
Note 2: Pin positions A, B, C, and D are used for drive address setting. (Refer to Figure 45 on page 57 for
correct address setting.)

Figure 32. Interface connector pin assignments

Travelstar 32GH/30GT/20GN hard disk drive specifications

41

7.3 Signal definitions

The pin assignments of interface signals are listed as follows:

TypeI/OSIGNALPINTypeI/OSIGNALPIN

GND02TTLI–RESET01

3–stateI/ODD08043–stateI/ODD0703
3–stateI/ODD09063–stateI/ODD0605
3–stateI/ODD10083–stateI/ODD0507
3–stateI/ODD11103–stateI/ODD0409
3–stateI/ODD12123–stateI/ODD0311
3–stateI/ODD13143–stateI/ODD0213
3–stateI/ODD14163–stateI/ODD0115
3–stateI/ODD15183–stateI/ODD0017

Key(20)GND19
GND223–stateODMARQ21
GND24TTLI–DIOW(*)23
GND26TTLI–DIOR(*)25

TTLICSEL28ODOIORDY(*)27

GND30TTLI–DMACK29

ODO–IOCS16(*)323–stateOINTRQ31

ODI/O–PDIAG34TTLIDA0133
TTLIDA0236TTLIDA0035
TTLI–CS138TTLI–CS037

GND40ODI/O–DASP39

power+ 5V motor42power+ 5V logic41

(reserved)44GND43

Notes:

1. "O" designates an output from the Drive.

2. "I" designates an input to the Drive.

3. "I/O" designates an input/output common.

4. "OD" designates an Open-Drain output.

5. The signal lines marked with (*) are redefined during the Ultra DMA protocol to provide special

functions. These lines change from the conventional to special definitions at the moment the Host
decides to allow a DMA burst, if the Ultra DMA transfer mode was previously chosen via
SetFeatures. The Drive becomes aware of this change upon assertion of the -DMACK line. These
lines revert back to their original definitions upon the deassertion of DMACK at the termination of
the DMA burst.

6. "power" designates a power supply to the drive.

7. "reserved" designates reserved pins which must be left unconnected.

Figure 33. Table of signals

Travelstar 32GH/30GT/20GN hard disk drive specifications

42

Conventional DefinitionSpecial Definition

(for Ultra DMA)

IORDY–DDMARDY

Write Operation

Read Operation

Figure 34. Special signal definitions for Ultra DMA

–DIORHSTROBE

–DIOWSTOP

–DIOR–HDMARDY

IORDYDSTROBE

–DIOWSTOP

7.4 Signal descriptions

DD00–DD15

A 16-bit bi-directional data bus between the host and the HDD. The lower 8 lines, DD00-07, are used
for Register and ECC access. All 16 lines, DD00–15, are used for data transfer. These are 3-state
lines with 24 mA current sink capability.

DA00–DA02

These are addresses used to select the individual register in the HDD.

-CS0

The chip select signal generated from the Host address bus. When active, one of the Command Block
Registers [Data, Error (Features when written), Sector Count, Sector Number, Cylinder Low, Cylinder
High, Drive/Head and Status (Command when written) register] can be selected.

-CS1

The chip select signal generated from the Host address bus. When active, one of the Control Block
Registers [Alternate Status (Device Control when written) and Drive Address register] can be
selected.

-RESET

This line is used to reset the HDD. It shall be kept at a Low logic state during power up and kept High
thereafter.

-DIOW

The rising edge of this signal holds data from the data bus to a register or data register of the HDD.

-DIOR

When this signal is low it enables data from a register or data register of the drive onto the data bus.
The data on the bus shall be latched on the rising edge of -DIOR.

INTRQ

The interrupt is enabled only when the drive is selected and the host activates the -IEN bit in the
Device Control Register. Otherwise, this signal is in high impedance state regardless of the state of
the IRQ bit. The interrupt is set when the IRQ bit is set by the drive CPU. The IRQ is reset to zero by a
host read of the status register or a write to the Command Register. This signal is a 3-state line with
24 mA of sink capability.

Travelstar 32GH/30GT/20GN hard disk drive specifications

43

-IOCS16

A signal indicating to the host that a 16-bit wide data register has been addressed and that the drive is
prepared to send or receive a 16-bit wide data word. This signal is an Open-Drain output with 24 mA
sink capability and an external resistor is needed to pull this line to 5 volts.

-DASP

This is a time-multiplexed signal which indicates that a drive is active or that device 1 is present. This
signal is driven by an Open-Drain driver and internally pulled up to 5 volts through a 10 kΩ resistor.
During a Power-On initialization or after -RESET is negated, -DASP shall be asserted by Device 1
within 400 ms to indicate that device 1 is present. Device 0 shall allow up to 450 ms for device 1 to
assert -DASP. If device 1 is not present, device 0 may assert -DASP to drive an LED indicator. The

-DASP signal shall be negated following acceptance of the first valid command by device 1. Anytime
after negation of -DASP, either drive may assert -DASP to indicate that a drive is active.

-PDIAG

This signal shall be asserted by device 1 to indicate to device 0 that it has completed the diagnostics.
This line is pulled up to 5 volts in the HDD through a 10 kΩ resistor.

Following a Power On Reset—software reset or -RESET—drive 1 shall negate -PDIAG within 1 ms (to
indicate to device 0 that it is busy). Drive 1 shall then assert -PDIAG within 30 seconds to indicate that
it is no longer busy and is able to provide status.

Following the receipt of a valid Execute Drive Diagnostics command, device 1 shall negate -PDIAG
within 1 ms to indicate to device 0 that it is busy and has not yet passed its drive diagnostics. If device
1 is present then device 0 shall wait up to 6 seconds from the receipt of a valid Execute Drive
Diagnostics command for drive 1 to assert -PDIAG. Device 1 should clear BSY before asserting

-PDIAG, as -PDIAG is used to indicate that device 1 has passed its diagnostics and is ready to post
status. If -DASP was not asserted by device 1 during reset initialization, device 0 shall post its own
status immediately after it completes diagnostics and clears the device 1 Status register to 00h.
Device 0 may be unable to accept commands until it has finished its reset procedure and is ready
(DRDY=1).

CSEL (Cable Select)

This signal is monitored to determine the drive address (master or slave) when the jumper on the
interface connector is at Position-3.

When CSEL is at ground or is at a low level the HDD works as a Master. If CSEL is open or is at a
logical high level the HDD works as a Slave.

The signal level of CSEL to one HDD should be different from the signal level to another HDD on the
same AT interface cable to avoid master-master or slave-slave configurations.

KEY

Pin position 20 has no connection pin. It is recommended to close the respective position of the cable
connector in order to avoid incorrect insertion.

IORDY

This signal is an indication to the host that the drive is ready to complete the current I/O cycle. This
line is driven low at the falling edge of -DIOR or -DIOW when HDD needs some additional WAIT
cycle(s) to extend the PIO cycle. This line can be connected to the host IORDY signal in order to
insert a WAIT state(s) into the host PIO cycle. This signal is an Open-Drain output with 24 mA sink
capability.

Travelstar 32GH/30GT/20GN hard disk drive specifications

44

5V Power

There are two input pins for the +5 V power supply. One is the "+5 V Logic" input pin and the second
is the "+5 V Motor" input pin. These two input pins are tied together within the drive.

-DMACK

This signal shall be used by the host in response to DMARQ to either acknowledge that data has been
accepted, or that data is available.

This signal is internally pulled up to 5 Volt through a 15 kΩ resistor with a resistor tolerance value of
–50% to +100%.

DMARQ

This signal is used for DMA data transfers between the host and drive. It shall be asserted by the
drive when it is ready to transfer data to or from the host. The direction of data transfer is controlled by

-HIOR and -HIOW signals. This signal is used in a handshake mode with -DMACK. This signal is a
3-state line with 24 mA sink capability and internally pulled down to GND through a 10 kΩ resistor.

-HDMARDY (Ultra DMA)

This signal is used only for Ultra DMA data transfers between host and drive.
The signal -HDMARDY is a flow control signal for Ultra DMA data in bursts. This signal is held

asserted by the host to indicate to the device that the host is ready to receive Ultra DMA data in
transfers. The host may negate -HDMARDY to pause an Ultra DMA data in transfer.

HSTROBE (Ultra DMA)

This signal is used only for Ultra DMA data transfers between host and drive.
The signal HSTROBE is the data out strobe signal from the host for an Ultra DMA data out transfer.

Both the rising and falling edge of HSTROBE latch the data from DD (15:0) into the device. The host
may stop toggling HSTROBE to pause an Ultra DMA data out transfer.

STOP (Ultra DMA)

This signal is used only for Ultra DMA data transfers between host and drive.

signal shall be asserted by the host prior to initiation of an Ultra

STOP

The
negated by the host before data is transferred in an Ultra

mode signals the termination of the burst.

during or after data transfer in an Ultra

DMA

burst. Assertion of

DMA

DMA

burst.

STOP

A STOP

by the host

-DDMARDY (Ultra DMA)

This signal is used only for Ultra DMA data transfers between host and drive.
The signal -DDMARDY is a flow control signal for Ultra DMA data out bursts. This signal is held

asserted by the device to indicate to the host that the device is ready to receive Ultra DMA data out
transfers. The device may negate -DDMARDY to pause an Ultra DMA data out transfer.

DSTROBE (Ultra DMA)

This signal is used only for Ultra DMA data transfers between host and drive.
The signal DSTROBE is the data in strobe signal from the device for an Ultra DMA data in transfer.

Both the rising and the falling edge of DSTROBE latch the data from DD (15:0) into the host. The
device may stop toggling DSTROBE to pause an Ultra DMA data in transfer.

shall be

Travelstar 32GH/30GT/20GN hard disk drive specifications

45

7.5 Interface logic signal levels

The interface logic signals have the following electrical specifications:

Inputs :
Outputs :
Current :

7.6 Reset timings

RESET

BUSY

PARAMETER DESCRIPTION

Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Driver Sink Current
Driver Source Current

t10

t1

2.0 V min./5.5 V max.
–0.5 V min./0.8 V max.

2.4 V min.

0.5 V max.
24 mA min.
–400 uA min.

Min.

µµµµ

(

s)

Max.

(

µµµµ

s)

9.5–RESET high to Not BUSYt1
–25RESET low widtht10

Figure 35. System reset timings

Travelstar 32GH/30GT/20GN hard disk drive specifications

46

7.7 PIO timings

The PIO cycle timings meet Mode 4 of the ATA-4 description.

CS(1:0)­DA(2:0)

t9

DIOR-,
DIOW-

Write data
DD(15:0)

Read data
DD(15:0)

IOCS16-(*)

IORDY

t7(*)

t1

tA

t2

t3 t4

t5

tRD

tB

t0

t2i

t6z

t6

t8(*)

(*) Up to ATA-2 (mode-0,1,2)

MAX. (ns)MIN (ns)PARAMETER DESCRIPTION

Figure 36. PIO cycle timings

Travelstar 32GH/30GT/20GN hard disk drive specifications

–120Cycle timet0
–25Address valid to DIOR-/DIOW- setupt1
–70DIOR-/DIOW- pulse widtht2
–25DIOR-/DIOW- recovery timet2i
–20DIOW- data setupt3
–10DIOW- data holdt4
–20DIOR- data setupt5

–5DIOR- data holdt6
30–DIOR- data tristatet6z
40–Address valid to IOCS16- assertiont7(*)
30–Address valid to IOCS16- releasedt8(*)

–10DIOR-/DIOW- to address valid holdt9

–0Read data valid to IORDY activetRD
35–IORDY setup timetA

1,250–IORDY pulse widthtB

47

7.8

Multiword DMA timings

The Multiword DMA timings meet Mode 2 of the ATA-3 description.

DMARQ

tLR/tLW

DMACK-

DIOR-/DIOW-

READ DD(15:0)

WRITE DD(15: 0)

t0

tI

tD

tG

tG

tKR/tKW

tF

tH

tJ

tZ

MAX (ns)MIN (ns)PARAMETER DESCRIPTION

–120Cycle timet0
–70DIOR-/DIOW- asserted pulse widthtD

50–DIOR- data accesstE

–5DIOR- data holdtF
–20DIOR-/DIOW- data setuptG
–10DIOW- data holdtH
–0DMACK- to DIOR-/DIOW- setuptI
–5DIOR-/DIOW- to DMACK- holdtJ
–25DIOR- negated pulse width / DIOW- negated pulse widthtKR/tKW

35–DIOR- to DMARQ delay / DIOW- to DMARQ delaytLR/tLW
25–DMACK- to read data releasedtZ

Figure 37. Multiword DMA cycle timings

Travelstar 32GH/30GT/20GN hard disk drive specifications

48

7.9 Ultra DMA timings

The Ultra DMA timings meet Mode 0, 1, 2, 3, and 4 of the Ultra DMA Protocol.

7.9.1

Initiating Read DMA

DMARQ

DMACK-

STOP

HDMARDY-

tZIORDY

DSTROBE

DD(15:0)

xxxxxxxxxxxx xxxxxxxxxxxxxxx

tUI

tACK tENV

tACK tENV

tAZ

t2CYC

tFS tCYC

tZAD

xxx xxxx xxx

RD Data RD Data

tDS

tCYC

tDH

RD Data

Host drives DD

PARAMETER DESCRIPTION

tAZ

to release

Figure 38. Ultra DMA cycle timing

Travelstar 32GH/30GT/20GN hard disk drive specifications

(Initiating Read)

49

MIN

(ns)

Device drives DD

MAX

MIN

MAX

(ns)

(ns)

(ns)

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN
(ns)

MAX

(ns)

–0–0–0–0–0Unlimited interlock timetUI
–20–20–20–20–20Setup time for DMACK-tACK

55205520702070207020Envelope timetENV

–0–0–0–0–0Minimum time before driving IORDYtZIORDY

12001300170020002300First DSTROBE timetFS

–25–39–54–73–112Cycle timetCYC
–57–86–115–154–230Two cycle timet2CYC

10–10–10–10–10–Maximum time allowed for output drivers

–0–0–0–0–0Drivers to asserttZAD
–5–7–7–10–15Data setup time at hosttDS
–5–5–5–5–5Data hold time at hosttDH

7.9.2

Host Pausing Read DMA

DMARQ

DMACK-

STOP

tSR

HDMARDY-

tRFS

DSTROBE

MODE 4MODE 3MODE 2MODE 1MODE 0

PARAMETER DESCRIPTION

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

MIN
(ns)

Note: When a host does not satisfy the tSR timing, the host should be ready to receive two more data
words after HDMARDY-.

MAX

(ns)

MIN
(ns)

MAX

(ns)

––––20–30–50–DSTROBE to HDMARDY- timetSR

60–60–60–70–75–HDMARDY- to final DSTROBE timetRFS

Figure 39. Ultra DMA cycle timings (Host Pausing Read)

Travelstar 32GH/30GT/20GN hard disk drive specifications

50

7.9.1

DMARQ

DMACK-

STOP

Host Terminating Read DMA

tRP

tLI

tMLI

tACK

tACK

HDMARDY-

DSTROBE

DD(15:0)

tAZ

tRFS

xxx RD Da ta xxxxxx xx xxx

PARAMETER DESCRIPTION

to release

tLI tIORDYZ

xxxxx xxxxxxxxxxxxx

Device drives DD

MAX

MIN

(ns)

(ns)

tAZ

tZAH

MIN
(ns)

tDS

xxx

CRC

Host drives DD

MIN

MAX

(ns)

(ns)

tDH

MAX

(ns)

MIN
(ns)

MAX

(ns)

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN
(ns)

MAX

(ns)

60–60–60–70–75–HDMARDY- to final DSTROBE timetRFS

–100–100–100–125–160Ready to pause timetRP

10001000150015001500Limited interlock timetLI

10–10–10–10–10–Maximum time allowed for output drivers

–20–20–20–20–20Minimum delay time required for outputtZAH
–20–20–20–20–20Interlock time with minimumtMLI
–5–7–7–10–15CRC word setup time at devicetDS
–5–5–5–5–5CRC word hold time at devicetDH
–20–20–20–20–20Hold time for DMACK-tACK

20–20–20–20–20–Maximum time before releasing IORDYtIORDYZ

Figure 40. Ultra DMA cycle timing (Host Terminating Read)

Travelstar 32GH/30GT/20GN hard disk drive specifications

51

7.9.2

Device Terminating Read DMA

DMARQ

DMACK-

STOP

HDMARDY-

DSTROBE

DD(15:0)

tSS

tAZ

tSS

tLI

tLI

xxxxxx xxxxxxxxxx

tZAH

Device drives DD

PARAMETER DESCRIPTION

DMARQ

to release

tAZ

tMLI

tLI

tIORDYZ

xxxxxxxxxxxxxxxxxx

MIN

MAX

MIN

(ns)

(ns)

(ns)

tDH

tDS

CRC

Host drives DD

MAX

MIN

MAX

(ns)

(ns)

(ns)

tACK

tACK

MIN
(ns)

MAX

(ns)

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN
(ns)

MAX

(ns)

–50–50–50–50–50Time from DSTROBE edge to negation of

10001000150015001500Limited interlock timetLI

10–10–10–10–10–Maximum time allowed for output drivers

–20–20–20–20–20Maximum delay time required for outputtZAH
–20–20–20–20–20Interlock time with minimumtMLI
–5–7–7–10–15CRC word setup time at devicetDS
–5–5–5–5–5CRC word hold time at devicetDH
–20–20–20–20–20Hold time for DMACK-tACK

20–20–20–20–20–Maximum time before releasing IORDYtIORDYZ

Figure 41. Ultra DMA cycle timings (Device Terminating Read)

Travelstar 32GH/30GT/20GN hard disk drive specifications

52

7.9.3

DMAR Q

DMAC K -

STOP

Initiating Write DMA

tUI

tENV

tACK

DDMARDY-

HSTROBE

DD(15:0)

PARAMETER DESCRIPTION

tZIORDY

tLI

tACK

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Hos t driv es DD

tUI tCYC

WT Data

MAX

MIN

(ns)

(ns)

xxx xxx

MAX

MIN

(ns)

(ns)

t2CYC

tDH

tDS

WT Data

MAX

MIN

(ns)

(ns)

tCYC

MIN
(ns)

WT Data

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN

MAX

(ns)

(ns)

MAX

(ns)

–0–0–0–0–0Unlimited interlock timetUI
–20–20–20–20–20Setup time for DMACK-tACK

55205520702070207020Envelope timetENV

–0–0–0–0–0Minimum time before driving IORDYtZIORDY

10001000150015001500Limited interlock timetLI

–25–39–54–73–112Cycle timetCYC
–57–86–115–154–230Two cycle timet2CYC
–5–7–7–10–15Data setup time at devicetDS
–5–5–5–5–5Data Hold time at devicetDH

Figure 42. Ultra DMA cycle timings (Initiating Write)

Travelstar 32GH/30GT/20GN hard disk drive specifications

53

7.9.4

Device Pausing Write DMA

DMARQ

DMACK-

STOP

tSR

DDMARD Y-

tRFS

HSTROBE

MODE 4MODE 3MODE 2MODE 1MODE 0

PARAMETER DESCRIPTION

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

MIN
(ns)

MAX

(ns)

Note: When a device does not satisfy the tSR timing, the device is ready to receive two more data words
after DDMARDY- is negated.

MIN
(ns)

MAX

(ns)

––––20–30–50–HSTROBE to DDMARDY- timetSR

60–60–60–70–75–DDMARDY- to final HSTROBE timetRFS

Figure 43. Ultra DMA cycle timings (Device Pausing Write)

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54

7.9.2.1 Device Terminating Write DMA

DMARQ

DMACK-

STOP

DDMARDY-

HSTROBE

DD(15:0)

PARAMETER DESCRIPTION

tRP

tLI

tMLI

tACK

tIORDYZ

tRFS

tLI

tACK

tDH

tDS

xxx WT Data xxxxxxxxxx

xxxxxxxxxxxxxxxx xxxxxxxxxx

CRC

Host drives DD

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

(ns)

(ns)

(ns)

(ns)

(ns)

(ns)

(ns)

(ns)

(ns)

MAX

(ns)

60–60–60–70–75–DDMARDY- to final HSTROBE timetRFS

–100–100–100–125–160Ready to pause timetRP

10001000150015001500Limited interlock timetLI

–20–20–20–20–20Interlocking time with minimumtMLI
–5–7–7–10–15CRC word setup time at devicetDS
–5–5–5–5–5CRC word hold time at devicetDH
–20–20–20–20–20Hold time for DMACK-tACK

20–20–20–20–20–Maximum time before releasing IORDYtIORDYZ

Figure 44. Ultra DMA cycle timings (Device Terminating Write)

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55

7.9.3 Host Terminating Write DMA

DMARQ

DMACK-

STOP

DDMARDY -

HSTROB E

DD(15:0)

tSS

tLI

tSS

tLI

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

PARAMETER DESCRIPTION

STOP

tLI

Host drives DD

MAX

MIN

(ns)

(ns)

tMLI

tIORDYZ

MAX

MIN

(ns)

(ns)

tDS

MIN
(ns)

tDH

CRC

MAX

(ns)

tACK

tACK

xxxxxxxxxx

MAX

MIN
(ns)

(ns)

MODE 4MODE 3MODE 2MODE 1MODE 0

MIN
(ns)

MAX

(ns)

–50–50–50–50–50Time from HSTROBE edge to assertion of

10001000150015001500Limited interlock timetLI

–20–20–20–20–20Interlock time with minimumtMLI
–5–7–7–10–15CRC word setup time at devicetDS
–5–5–5–5–5CRC word hold time at devicetDH
–20–20–20–20–20Hold time for DMACK-tACK

20–20–20–20–20–Maximum time before releasing IORDYtIORDYZ

Figure 45. Ultra DMA cycle timings (Host Terminating Write)

Travelstar 32GH/30GT/20GN hard disk drive specifications

56

7.10 Drive address setting

A jumper is available at the interface connector to determine the drive address. The set position of the
jumper is as shown below.

Using Cable Selection, the drive address depends on the condition of pin 28 of the AT interface cable. In
the case when pin 28 is ground, or low, the drive is a Master. If pin 28 is open, or logic high, the drive is a
Slave.

31

2

4

12

3

4

5

1—Device 0 (Master)
2—Device 1 (Slave)
3—Cable Select
4—Never attach a jumper here
5—Never attach a jumper here

Note: When pin C is grounded the drive does not spin up at POR.

Figure 46. Drive address setting

7.11

The default setting of jumper at shipment is No Jumper: Device 0 (Master).

Drive default address setting

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57

7.12 Addressing of HDD registers

The host addresses the drive through a set of registers called a Task File. These registers are mapped
into the host's I/O space. Two chip select lines (-CS0 and -CS1) and three address lines (DA00–02) are
used to select one of these registers, while a -DIOR or -DIOW is provided at the specified time.

The chip select line -CS0 is used to address the Command Block registers while the -CS1 is used to
address Control Block registers.

The following table shows the I/ O address map.

–DIOW = 0 (Write)–DIOR = 0 (Read)DA00DA01DA02–CS1–CS0

Command Block Registers

Data Reg.Data Reg.00010
Features Reg.Error Reg.10010
Sector count Reg.Sector count Reg.01010
Sector number Reg.Sector number Reg.11010
Cylinder low Reg.Cylinder low Reg.00110
Cylinder high Reg.Cylinder high Reg.10110
Drive/Head Reg.Drive/Head Reg.01110
Command Reg. Status Reg. 11110

Control Block Registers

Device control Reg.Alt. Status Reg.01101

–Drive address Reg.11101

Figure 47. I/O address map

Travelstar 32GH/30GT/20GN hard disk drive specifications

58

Part 2. Interface specification

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8.0 General

8.1 Introduction

This specification describes the host interface of DJSA-XXX.
The interface conforms to the Working Document of Information technology, AT Attachment with Packet

Interface Extension (ATA/ATAPI-5) Revision 2 dated December 13, 1999, with certain limitations
described in section 9.0, "Deviations From Standard” on page 63.

DJSA-XXX drives support the following new functions included by ATA/ATAPI-5 standards or newer
standards.

! S.M.A.R.T. Error Logging and Self Test commands
! Ultra DMA/66 transfer commands

DJSA-XXX drives support the following functions as Vendor Specific Functions.

! Address Offset Feature
! Format Unit Function
! ENABLE/DISABLE DELAYED WRITE
! SENSE CONDITION command

8.2 Terminology

First Command

Device indicates DJSA-XXXDevice
Host indicates the system that the device is attached to.Host
The first command that is executed after the power on reset (also known as a hard
reset) is the Standby mode command.
Interrupt request (Device or Host)INTRQ

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9.0 Deviations from standard

The device conforms to the referenced specifications, with deviations described below.
The interface conforms to the Working Document of Information Technology, AT Attachment with Packet

Interface Extension (ATA/ATAPI-5) Revision 2 dated December 13, 1999, with deviation as follows:

Standby Timer

Write Verify

S.M.A.R.T. Return Status

Standby timer is enabled by STANDBY command or IDLE command. The
value in the Sector Count register shall be used to determine the time
programmed into the Standby timer. If the Sector Count register is zero then
the Standby timer is set to 109 minutes automatically.
WRITE VERIFY command does not include read verification after write
operation. The function is the same as WRITE SECTORS command.

S.M.A.R.T. RETURN STATUS subcommand does not check advisory
attributes. This means that the device will not report a threshold exceeded
condition unless the prefailure attributes exceed their corresponding
thresholds. For example, a Power-On Hours Attribute never results in a
negative reliability status.

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63

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10.0 Registers

FunctionsAddresses

WRITE (DIOW–))READ (DIOR–)DA0DA1DA2CS1–CS0–

Not usedData bus high impedxxxNN

Control block registers

Not usedData bus high impedxx0AN
Not usedData bus high impedx01AN
Device ControlAlternate Status011AN
Not usedDevice Address111AN

Command block registers

DataData 000NA
FeaturesError Register100NA
Sector CountSector Count010NA
Sector NumberSector Number110NA
* LBA bits 0-7 * LBA bits 0-7110NA
Cylinder LowCylinder Low001NA
* LBA bits 8-15 * LBA bits 8-15001NA
Cylinder HighCylinder High101NA
* LBA bits 16-23 * LBA bits 16-23101NA
Device/HeadDevice/Head.011NA
* LBA bits 24-27 * LBA bits 24-27011NA
CommandStatus111NA

Invalid addressInvalid addressxxxAA

* = Mapping of registers in LBA modeA = Signal assertedLogic converntions:
N = Signal not asserted
x = Does not matter which it is

Figure 48. Register Set

Communication to or from the device is through an I/O Register that routes the input or output data to or
from the registers addressed by the signals from the host (CS0-, CS1-, DA2, DA1, DA0, DIOR- and
DIOW-).

The Command Block Registers are used for sending commands to the device or posting status from the
device.

The Control Block Registers are used for device control and to post alternate status.

Travelstar 32GH/30GT/20GN hard disk drive specifications

65

10.1 Alternate Status Register

Alternate Status Register

7

BSY

Figure 49. Alternate Status Register

This register contains the same information as the Status Register. The only difference between this
register and the Status Register is that reading the Alternate Status Register does not imply an interrupt
acknowledge or a clear of a pending interrupt. See 10.13, "Status Register" on page 70 for the definition of
the bits in this register.

6

RDY

5

DF

4

DSC

3

DBQ

2

COR

1

IDX

0

ERR

10.2 Command Register

This register contains the command code being sent to the device. Command execution begins
immediately after this register is written. The command set is shown in Figure 68 on page 103. All other
registers required for the command must be set up before writing to the Command Register.

10.3 Cylinder High Register

This register contains the high order bits of the starting cylinder address for any disk access. At the end of
the command, this register is updated to reflect the current cylinder number.

In LBA Mode this register contains Bits 16–23. At the end of the command, this register is updated to
reflect the current LBA Bits 16–23.

The cylinder number may be from zero to the number of cylinders minus one.

10.4 Cylinder Low Register

This register contains the low order 8 bits of the starting cylinder address for any disk access. At the end
of the command, this register is updated to reflect the current cylinder number.

In LBA Mode this register contains Bits 8–15. At the end of the command, this register is updated to reflect
the current LBA Bits 8–15.

The cylinder number may be from zero to the number of cylinders minus one (1).

Travelstar 32GH/30GT/20GN hard disk drive specifications

66

10.5 Data Register

This register is used to transfer data blocks between the device data buffer and the host. It is also the
register through which sector information is transferred on a Format Track command and the configuration
information is transferred on an Identify Device command.

All data transfers are 16 bits wide, except for ECC byte transfers, which are 8 bits wide. Data transfers are
PIO only.

The register contains valid data only when DRQ = 1 is in the Status Register.

10.6 Device Control Register

Device Control Register

7
–

Figure 50. Device Control Register

Bit Definitions

6
–

5
–

4
–

3
1

2

SRST

1

–IEN

0
0

SRST (RST)

-IEN

Software Reset. The device is held at reset when RST = 1. Setting RST = 0 again
enables the device. To ensure that the device recognizes the reset, the host must set
RST = 1 and wait for at least 5 microseconds before setting RST = 0.

Interrupt Enable. When IEN = 0, and the device is selected, the device interrupts to the
host will be enabled. When IEN = 1, or the device is not selected, the device interrupts to
the host will be disabled.

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67

10.7 Drive Address Register

t

Drive Address Register

01234567

–DS0–DS1–H0–H1–H2–H3–WTGHIZ

Figure 51. Drive Address Register

This register contains the inverted drive select and head select addresses of the currently selected drive.

Bit Definitions
HIZ

-H3,-H2,-H1,-H0

-DS1

-DS0

High Impedance. This bit is not a device and will always be in a high impedance
state.

-Write Gate. This bit is 0 when writing to the disk device is in progress.-WTG

-Head Select. These four bits are the one's complement of the binary coded
address of the currently selected head. Bit -H0 is the least significant.

-Drive Select 1. The Drive Select bit for device 1 is active low. DS1 = 0 when
device 1 (slave) is selected and active.

-Drive Select 0. The Drive Select bit for device 0 is active low. DS0 = 0 when device
0 (master) is selected and active.

10.8 Device/Head Register

Device/Head Register

Figure 52. Device/Head Register

This register contains the device and head numbers.

Bit Definitions

01234567

HS0HS1HS2HS3DRV1L1

L

DRV

HS3,HS2,HS1,HS0

Binary encoded address mode select. When L = 0 , addressing is by CHS
mode. When L = 1, addressing is by LBA mode.

Device. When DRV = 0, device 0 (master) is selected. When DRV = 1, device 1
(Slave) is selected.
Head Select. These four bits indicate the binary encoded address of the head. Bi
HS0 is the least significant bit. At command completion, these bits are updated to
reflect the currently selected head. The head number may be from zero to the
number of heads minus one. In LBA mode, HS3 through HS0 contain bits 24–27
of the LBA. At command completion, these bits are updated to reflect the current
LBA bits 24–27.

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68

10.9 Error Register

t

Error Register

01234567

AMNFTK0NFABRT0IDNF0UNCCRC

Figure 53. Error Register

This register contains the status from the last command executed by the device or a diagnostic code. At
the completion of any command, except Execute Device Diagnostic, the contents of this register are
always valid even if ERR = 0 is in the Status Register.

Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register
contains a diagnostic code. See Figure 56 on page 73 for the definitions.

Bit Definitions
ICRCE (CRC)

UNC

IDNF (IDN)

ABRT (ABT)

TK0NF (T0N)

AMNF (AMN)

Interface CRC Error. When CRC = 1 it indicates that a CRC error has occurred on the
data bus during a Ultra DMA transfer.
Uncorrectable Data Error. When UNC = 1 it indicates that an uncorrectable data error
has been encountered.
ID Not Found. When IDN = 1 it indicates that the requested sector's ID field could not be
found.
Aborted Command. When ABT = 1 it indicates that the requested command has been
aborted due to a device status error or an invalid parameter in an output register.
Track 0 Not Found. When T0N = 1 it indicates that track 0 was not found during a
Recalibrate command.
Address Mark Not Found. When AMN = 1 it indicates that the data address mark has no
been found after finding the correct ID field for the requested sector.

10.10 Features Register

This register is command specific. This register is used with the Set Features command, the S.M.A.R.T.
Function Set command, and the Format Unit command.

10.11 Sector Count Register

This register contains the number of sectors of data requested to be transferred on a read or write
operation between the host and the device. If the value in the register is set to 0, a count of 256 sectors is
specified.

If the register is zero at command completion, the command was successful. If not successfully
completed, the register contains the number of sectors which need to be transferred in order to complete
the request.

The contents of the register are defined differently on some commands. These definitions are given in

13.0, “Command descriptions” on 103.

Travelstar 32GH/30GT/20GN hard disk drive specifications

69

10.12 Sector Number Register

r

t

a

This register contains the starting sector number for any disk data access for the subsequent command.
The sector number is from one to the maximum number of sectors per track.

In LBA mode, this register contains Bits 0–7. At the end of the command, this register is updated to reflect
the current LBA Bits 0–7.

10.13 Status Register

Status Register

01234567

ERRIDXCORRDRQDSCDFDRDYBSY

Figure 54. Status Register

This register contains the device status. The contents of this register are updated whenever an error
occurs and at the completion of each command.

If the host reads this register when an interrupt is pending, it is considered to be the interrupt
acknowledge. Any pending interrupt is cleared whenever this register is read.

If BSY=1, no other bits in the register are valid.

Bit Definitions
BSY

DRDY (RDY)

DF

DSC

DRQ

IDX

ERR

Busy. Bit BSY=1 whenever the device is accessing the registers. The host should not
read or write any registers when BSY=1. If the host reads any register when BSY=1, the
contents of the Status Register will be returned.
Device Ready. When bit RDY=1 it indicates that the device is capable of responding to
command. Bit RDY will be set to 0 during power on until the device is ready to accept a
command.
Device Fault. It DF=1 it indicates that the device has detected a write fault condition. Bit
DF is set to 0 after the Status Register is read by the host.
Device Seek Complete. If DSC=1 it indicates that a Seek has completed and the device
head is settled over a track. Bit DSC is set to 0 by the device just before a Seek begins.
When an error occurs, this bit is not changed until the Status Register is read by the hos
and at that time the bit again indicates the current Seek complete status. When the
device enters into or is in Standby mode or Sleep mode, this bit is set by device in spite
of the drive not spinning up.
Data Request. Bit DRQ=1 indicates that the device is ready to transfer a word or byte of
data between the host and the device. The host should not write the Command register
when DRQ=1.
Corrected Data. Corrected Data is always = 0.CORR (COR)
Index. Bit IDX=1 once per revolution. Since IDX=1 only for a very short time during each
revolution, the host may not see it set to 1 even if the host is reading the Status Registe
continuously. Therefore the host should not attempt to use IDX bit for timing purposes.
Error. Bit ERR=1 indicates that an error occurred during execution of the previous
command. The Error Register should be read to determine the error type. The device
sets bit ERR=0 when the next command is received from the host.

Travelstar 32GH/30GT/20GN hard disk drive specifications

70

11.0 General operation descriptions

11.1 Reset response

ATA has the following three types of resets:

Power On Reset (POR)

Hard Reset (Hardware Reset)

Soft Reset (Software Reset)

The actions of each reset are shown in Figure 54 on page 72.

The device executes a series of electrical circuitry diagnostics, spins up
the HDA, tests speed and other mechanical parametric, and sets default
values.
The RESET signal is negated in the ATA Bus. The device resets the
interface circuitry and sets the default values.
The SRST bit in the Device Control Register is set and then is reset. The
device resets the interface circuitry according to the Set Features
requirement.

Travelstar 32GH/30GT/20GN hard disk drive specifications

71

default

! Number of CHS (set by Initialize

Device Parameters)

! Multiple mode
! Write Cache
! Delayed Write
! Read look-ahead
! ECC bytes
! Volatile max. Address
! Address offset mode

Reset Standby timer value (*5)

o—execute
x—not execute

POR

hard

reset

soft

reset

oo–Aborting Host interface

(*1)(*1)–Aborting Device operation

xxoInitialization of hardware
xxoInternal diagnostic
xx(*6)Starting or Spinning Up spindle motor
oooInitialization of registers (*2)
xooDASP handshake
oooPDIAG handshake

(*3)ooReverting programmed parameters to

(*4)(*4)(*6)Power mode

ooo

Note.

(*1). Execute after the data in write cache has been written.
(*2). The default value on POR is shown in Figure 55 on page 73.
(*3). The Set Features command with Feature register = CCh enables the device to revert these

parameters to the power on defaults.

(*4). In the case of sleep mode, the device goes to standby mode. In other cases, the device does not

change current mode.

(*5). After reset the Standby timer value is set to 109 minutes.
(*6). Set according to the initial power mode selection.

Figure 55. Reset response table

Travelstar 32GH/30GT/20GN hard disk drive specifications

72

11.1.1 Register initialization

After a power on, a hard reset, or a software reset, the register values are initialized as shown in the table
below.

Default ValueRegister

Diagnostic CodeError

01hSector Count
01hSector Number
00hCylinder Low
00hCylinder High
A0hDevice/Head
50hStatus
50hAlternate Status

Figure 56. Default Register Values

As a result of carrying out an Execute Device Diagnostic command or being powered on, or if a hard reset
occurs—the system generates an Error Register diagnostic code. See the table below for a description of
the various codes.

Figure 57. Diagnostic Codes

DescriptionCode
No error detected01h
Formatter device error02h
Sector buffer error03h
ECC circuitry error04h
Controller microprocessor error05h
Device 1 failed8xh

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73

11.2 Diagnostic and Reset considerations

The Set Max password, the Set Max security mode and the Set Max unlock counter are not retained over
a Power On Reset but are retained over a Hard Reset or Soft Reset.

For each Reset and Execute Device Diagnostic, the diagnostic is done as follows:

Power On Reset, Hard Reset

Soft Reset

Execute Device Diagnostic

In each case—Power On Reset [Hard Reset], Soft Reset, and the Execute Device Diagnostic
command—the Device 0 Error register value is interpreted using the table below.

Device 1

present?

DASP– is read by Device 0 to determine if Device 1 is present. If Device
1 is present Device 0 shall read PDIAG– to determine when it is valid to
clear the BSY bit and whether Device 1 has powered on or reset without
error, otherwise Device 0 clears the BSY bit whenever it is ready to ac­cept commands. Device 0 may assert DASP– to indicate device activity.
If Device 1 is not present, Device 0 does not Assert DASP– at POR.

If Device 1 is present, Device 0 shall read PDIAG– to determine when it
is valid to clear the BSY bit and whether Device 1 has reset without any
errors; otherwise, Device 0 shall simply reset and clear the BSY bit.
DASP– is asserted by Device 0 (and Device 1 if it is present) in order to
indicate device active.

If Device 1 is present, Device 0 shall read PDIAG– to determine when it
is valid to clear the BSY bit and if Device 1 passed or failed the
EXECUTE DEVICE DIAGNOSTIC command; otherwise, Device 0 shall
simply execute its diagnostics and then clear the BSY bit. DASP– is
asserted by Device 0 (and Device 1 if it is present) in order to indicate
that the device is active.

PDIAG–

Asserted?

Device 0

Passed

Error

Register

01hYesYesYes
0xhNoYesYes
81hYesNoYes
8xhNoNoYes
01hYes(not read)No
0xhNo(not read)No

The "x" indicates the appropriate Diagnostic Code for the Power on, RESET–,
Soft Reset, or Device Diagnostic error.

Figure 58. Reset error register values

Travelstar 32GH/30GT/20GN hard disk drive specifications

74

11.3 Power-off considerations

11.3.1 Load/Unload

Load/Unload is a functional mechanism of the HDD. It is controlled by the drive micro code. Specifically,
unloading of the heads is invoked by the following commands.

Command

UL -> Comp.Standby
UL -> Comp.Standby Immediate
UL -> Comp.Sleep

Reset

UL -> RdySoft Reset
UL -> RdyHard Reset

—means "don't care"x
—means "immediate""Imme."
—means "complete""Comp"
—means "unload""UL"
—means "interface ready""Rdy"
Load/Unload condition is not changed by Soft Reset.(*1)

The microcode revision is referred to words 23–26 [eight characters in ASCII code] in the "Identify Device"
paragraph 13.7 on page 114.

Figure 59. Device behavior by ATA commands.

Load/unload is also invoked as one of the idle modes of the drive.
The specified start/stop life of the product assumes that load/unload is operated normally, NOT in

emergency mode.

11.3.2 Emergency unload

When HDD power is interrupted while the heads are still loaded, the microcode cannot operate and the
normal 5V power is unavailable to unload the heads. In this case, normal unload is not possible, so the
heads are unloaded by routing the back-EMF of the spinning motor to the voice coil. The actuator velocity
is greater than the normal case, and the unload process is inherently less controllable without a normal
seek current profile.

Emergency unload is intended to be invoked in rare situations. Because this operation is inherently
uncontrolled, it is more mechanically stressful than a normal unload.

A single emergency unload operation is more stressful than 100 normal unloads. Use of emergency
unload reduces the start/stop life of the HDD at a rate at least 100X faster than that of normal unload, and
may damage the HDD.

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75

11.3.3 Required power-off sequence

Problems can occur on most HDDs when power is removed at an arbitrary time. Examples:

! Data loss from the write buffer.
! If the drive is writing a sector, a partially-written sector with an incorrect ECC block results. The

sector contents are destroyed, and reading that sector results in a hard error.

! Heads possibly land in the data zone instead of the landing zone, depending on the design of the

HDD.

You may then turn off the HDD in the following order:

1. Issue Standby Immediate or sleep command.

2. Wait until COMMAND COMPLETE STATUS is returned. (It may take up to 350 ms in typical case)

3. Terminate power to HDD.

This power-down sequence should be followed for entry into any system power-down state, or system
suspend state, or system hibernation state. In a robustly designed system, emergency unload is limited to
rare scenarios such as battery removal during operation.

11.4 Sector Addressing Mode

All addressing of data sectors recorded on the device's media are done by a logical sector address. The
logical CHS address for the DJSA-XXX drive is different from the actual physical CHS location of the data
sector on the disk media.

DJSA-XXX drives support both Logical CHS Addressing Mode and LBA Addressing Mode as the sector
addressing mode.

The host system may select either the currently selected CHS translation addressing or LBA addressing
on a command-by-command basis by using the L bit in the DEVICE/HEAD register. A host system must
set the L bit to 1 if the host uses LBA Addressing mode.

11.4.1 Logical CHS addressing mode

The logical CHS addressing is made up of three fields: the cylinder number, the head number, and the
sector number. Sectors are numbered from 1 to the maximum value allowed by the current CHS
translation mode but cannot exceed 255 (0FFh). Heads are numbered from 0 to the maximum value
allowed by the current CHS translation mode but cannot exceed 15 (0Fh). Cylinders are numbered from 0
to the maximum value allowed by the current CHS translation mode but cannot exceed 65535 (0FFFFh).

When the host selects a CHS translation mode using the INITIALIZE DEVICE PARAMETERS command,
the host requests the number of sectors per logical track and the number of heads per logical cylinder.
The device then computes the number of logical cylinders available in requested mode.

The default CHS translation mode is described in the Identify Device Information. The current CHS
translation mode also is described in the Identify Device Information.

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LBA addressing mode

g

Logical sectors on the device shall be linearly mapped with the first LBA addressed sector (sector 0) being
the same sector as the first logical CHS addressed sector ( cylinder 0, head 0, sector 1). Irrespective of
the logical CHS translation mode currently in effect, the LBA address of a given logical sector does not
change. The following is always true:

LBA = ((cylinder*heads_per_cylinder+heads)*sectors_per_track)+sector–1

where heads_per_cylinder and sectors_per_track are the current
translation mode values.

On LBA addressing mode, the LBA value is set to the following register.

<–––– LBA bits 27–24Device/Head
<–––– LBA bits 23–16Cylinder High
<–––– LBA bits 15– 8Cylinder Low
<–––– LBA bits 7– 0Sector Number

11.5 Power management features

The power management feature set permits a host to modify the behavior in a manner which reduces the
power required to operate. The power management feature set provides a set of commands and a timer
that enables a device to implement low power consumption modes.

DJSA-XXX implements the following set of functions.

1. A Standby timer

2. Idle command

3. Idle Immediate command

4. Sleep command

5. Standby command

6. Standby Immediate command

11.5.1 Power Mode

Sleep Mode

Standby Mode

Active Mode

The lowest power consumption when the device is powered on occurs in Sleep Mode.
When in sleep mode, the device requires a reset to be activated.

The device interface is capable of accepting commands, but as the media may not be
immediately accessible, there is a delay while waiting for the spindle to reach operatin
speed.

Refer to 11.6, Adaptive Battery Life Extender (ABLE-3) feature.Idle Mode
The device is in execution of a command or accessing the disk media with the read

look-ahead function or the write cache function.

11.5.2 Power management commands

The Check Power Mode command allows a host to determine if a device is currently in, going to, or
leaving standby mode.

The Idle and Idle Immediate commands move a device to idle mode immediately from the active or
standby modes. The idle command also sets the standby timer count and starts the standby timer.

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The sleep command moves a device to sleep mode. The device's interface becomes inactive at the
completion of the sleep command. A reset is required to move a device out of sleep mode. When a device
exits sleep mode it will enter standby mode.

The Standby and Standby Immediate commands move a device to standby mode immediately from the
active or idle modes. The standby command also sets the standby timer count.

11.5.3 Standby/Sleep command completion timing

1. Confirm the completion of writing cached data in the buffer to media.

2. Unload the heads on the ramp.

3. Set the DRDY bit and the DSC bit in Status Register.

4. Set the INTRQ (completion of the command).

5. Activate the spindle break to stop the spindle motor.

6. Wait until the spindle motor is stopped.

7. Perform the post process.

11.5.4 Standby timer

The standby timer provides a method for the device to automatically enter standby mode from either
active or idle mode following a host programmed period of inactivity. If the device is in the active or idle
mode, the device waits for the specified time period and if no command is received, the device
automatically enters the standby mode.

If the value of the SECTOR COUNT register on Idle command or the Standby command is set to "00h",
the device will automatically set the standby timer to 109 minutes.

11.5.5 Status

In the active, idle, and standby modes, the device shall have the RDY bit of the status register set. If the
BSY bit is not set, the device shall be ready to accept any command.

In sleep mode, the device's interface is not active. A host shall not attempt to read the device's status or
issue commands to the device.

11.5.6 Interface Capability for Power Modes

Each power mode affects the physical interface as defined in the following table:

RDYBSYMode

Figure 60. Power conditions

Ready (RDY) is not a power condition. A device may post ready at the interface even though the media
may not be accessible.

Interface

active

Media

ActiveYesxxActive

ActiveYes1oIdle
InactiveYes1oStandby
InactiveNoxxSleep

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Though the interface is inactive in sleep mode, the access to the interface registers and the validity of
INTRQ is guaranteed for two seconds after the Sleep command is completed. After this period, the
contents of interface registers may be lost. Since the contents of interface registers may be invalid, the
host should NOT check the Status register nor the Alternate Status register prior to issuing a soft reset to
wake up a device.

11.5.7 Initial Power Mode at Power On

After power on or hard reset the device goes to IDLE mode or STANDBY mode depending on the option.
Refer to Part 1 of this document for the initial power mode selection.

11.6 Advanced Power Management (ABLE-3) feature

This feature provides power saving without performance degradation. The Adaptive Battery Life
Extender 3 (ABLE-3) technology intelligently manages transition among power modes within the device by
monitoring access patterns of the host.

This technology has three idle modes; Performance Idle mode, Active Idle mode, and Low Power Idle
mode.

This feature allows the host to select an advanced power management level. The advanced power
management level is a scale from the lowest power consumption setting of 01h to the maximum perfor­mance level of FEh. Device performance may increase with increasing advanced power management
levels. Device power consumption may increase with increasing advanced power management levels.
The advanced power management levels contain discrete bands, described in the section of Set Feature
command in detail.

This feature set uses the following functions:

! A SET FEATURES subcommand to enable Advanced Power Management
! A SET FEATURES subcommand to disable Advanced Power Management

The Advanced Power Management feature is independent of the Standby timer setting. If both Advanced
Power Management level and the Standby timer are set, the device will go to the Standby state when the
timer times out or the device's Advanced Power Management algorithm indicates that it is time to enter the
Standby state.

The IDENTIFY DEVICE response word 83, bit 3 indicates that Advanced Power Management feature is
supported if set. Word 86, bit 3 indicates that Advanced Power Management is enabled if set. Word 91,
bits 7-0 contain the current Advanced Power Management level if Advanced Power Management is
enabled.

11.6.1 Performance Idle Mode

This mode is usually entered immediately after Active mode command processing is complete, instead of
conventional idle mode. In Performance Idle mode, all electronic components remain powered and full
frequency servo remains operational. This provides instantaneous response to the next command. The
duration of this mode is intelligently managed as described below.

11.6.2 Active Idle Mode

In this mode, power consumption is 45–55% less than that of Performance Idle mode. Additional
electronics are powered off, and the head is parked near the mid-diameter of the disk without servoing.
Recovery time to Active mode is about 20 ms.

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11.6.3 Low Power Idle Mode

Power consumption is 60–65% less than that of Performance Idle mode. The heads are unloaded on the
ramp, however the spindle is still rotated at the full speed. Recovery time to Active mode is about 300 ms.

11.6.4 Transition Time

The transition time is dynamically managed by users recent access pattern, instead of fixed times. The
ABLE-3 algorithm monitors the interval between commands instead of the command frequency of
ABLE-2. The algorithm supposes that next command will come with the same command interval distri­bution as the previous access pattern. The algorithm calculates the expected average saving energy and
response delay for next command in several transition time case based on this assumption. And it selects
the most effective transition time with the condition that the calculated response delay is shorter than the
value calculated from the specified level by Set Feature Enable Adaptive Power Management command.

The optimal time to enter Active Idle mode is variable depending on the recent behavior of the user. It is
not possible to achieve the same level of Power savings with a fixed entry time into Active Idle because
every user’s data and access pattern is different. The optimum entry time changes over time.

The same algorithm works for entering into Low Power Idle mode and Standby mode, which consumes
less power but need more recovery time switching from this mode to Active mode.

11.7 S.M.A.R.T. Function

The intent of S.M.A.R.T. is to protect user data and prevent unscheduled system downtime that may be
caused by predictable degradation and/or fault of the device. By monitoring and storing critical perfor­mance and calibration parameters, S.M.A.R.T. devices employ sophisticated data analysis algorithms to
predict the likelihood of near-term degradation or fault condition. By alerting the host system of a negative
reliability status condition, the host system can warn the user of the impending risk of a data loss and
advise the user of appropriate action.

Since S.M.A.R.T. utilizes the internal device microprocessor and other device resources, there may be
some small overhead associated with its operation. However, special care has been taken in the design of
the S.M.A.R.T. algorithms to minimize the impact to host system performance. Actual impact of
S.M.A.R.T. overhead is dependent on the specific device design and the usage patterns of the host
system. To further ensure minimal impact to the user, S.M.A.R.T. capable devices are shipped from the
device manufacturer's factory with the S.M.A.R.T. feature disabled. S.M.A.R.T. capable devices can be
enabled by the system OEMs at time of system integration or in the field by after-market products.

11.7.1 Attributes

Attributes are the specific performance or calibration parameters that are used in analyzing the status of
the device. Attributes are selected by the device manufacturer based on that attribute's ability to contribute
to the prediction of degrading or faulty conditions for that particular device. The specific set of attributes
being used and the identity of these attributes is vendor specific and proprietary.

11.7.2 Attribute values

Attribute values are used to represent the relative reliability of individual performance or calibration
attributes. Higher attribute values indicate that the analysis algorithms being used by the device are
predicting a lower probability of a degrading or fault condition existing. Accordingly, lower attribute values
indicate that the analysis algorithms being used by the device are predicting a higher probability of a

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degrading or fault condition existing. There is no implied linear reliability relationship corresponding to the
numerical relationship between different attribute values for any particular attribute.

11.7.3 Attribute thresholds

Each attribute value has a corresponding attribute threshold limit which is used for direct comparison to
the attribute value to indicate the existence of a degrading or faulty condition. The numerical value of the
attribute thresholds are determined by the device manufacturer through design and reliability testing and
analysis. Each attribute threshold represents the lowest limit to which its corresponding attribute value can
be equal while still retaining a positive reliability status. Attribute thresholds are set at the device
manufacturer's factory and cannot be changed in the field. The valid range for attribute thresholds is from
1 through 253 decimal.

11.7.4 Threshold exceeded condition

If one or more attribute values are less than or equal to their corresponding attribute thresholds, then the
device reliability status is negative, indicating an impending degrading or faulty condition.

11.7.5 S.M.A.R.T. commands

The S.M.A.R.T. commands provide access to attribute values, attribute thresholds and other logging and
reporting information.

11.7.6 S.M.A.R.T. operation with power management modes

It is recommended that, when a host system utilizes both the power management and S.M.A.R.T.
features, the system enables the device's attribute auto save feature to allow the device's automatic
attribute saving upon receipt of STANDBY IMMEDIATE or SLEEP commands. If the device has been set
to utilize the standby timer, the device also saves attribute values prior to going from an Idle state to
Standby state.

11.8 Security Mode Feature Set

Security Mode Feature Set is a powerful security feature. With a device lock password, a user can prevent
unauthorized access to a device even if it is removed from the computer.

New commands are supported for this feature as below.

('F1'h)Security Set Password
('F2'h)Security Unlock
('F3'h)Security Erase Prepare
('F4'h)Security Erase Unit
('F5'h)Security Freeze Lock
('F6'h)Security Disable Password

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11.8.1 Security Mode

Following security modes are provided.

Device Locked Mode

Device Unlocked Mode

Device Frozen Mode

The device disables media access commands after power on. Media access
commands are enabled by either a Security Unlock command or a Security
Erase Unit command.
The device enables all commands. If a password is not set this mode is
entered after power on, otherwise it is entered by a Security Unlock or a
Security Erase Unit command.
The device enables all commands except those which can update the device
lock function, set/change password. The device enters this mode via a
Security Freeze Lock command. It cannot quit this mode until power off.

11.8.2 Security level

Following security levels are provided.

High level security

Maximum level security

When the device lock function is enabled and the User Password is forgotten
the device can be unlocked via a Master Password.
When the device lock function is enabled and the User Password is forgotten
then only the Master Password with a Security Erase Unit command can
unlock the device. Then user data is erased.

11.8.3 Password

This function can have two types of passwords as described below.

Master Password

User Password

The system manufacturer/dealer who intends to enable the device lock function for end users must set the
master password even if only single level password protection is required. Otherwise, the 'default' master
password which is set by IBM can unlock a device that is locked with a user password.

When the Master Password is set, the device does NOT enable the Device
Lock Function, and the device CANNOT be locked with the Master Password,
but the Master Password can be used for unlocking the locked device.
The User Password should be given or changed by a system user. When the
User Password is set, the device enables the Device Lock Function, and then
the device is locked on the next power on reset or hard reset.

11.8.4 Master Password Revision Code

This Master Password Revision Code is set by Security Set Password command with the master
password. And this revision code field is returned in the Identify Device command word 92. The valid
revision codes are 0001h to FFFEh. The default value of Master Password Revision Code is FFFEh.
Values 0000h and FFFFh are reserved.

11.8.5 Operation example

11.8.5.1 Master Password setting

The system manufacturer/dealer can set a new Master Password from default Master Password using the
Security Set Password command, without enabling the Device Lock Function.

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11.8.5.2 User Password setting

When a User Password is set, the device will automatically enter lock mode the next time the device is
powered on.

( Ref. )

< Settin g password >

POR

< No setting password >

POR

Set Pass word with User Password

POR

Figure 61. Initial setting

Norm al operation

Power off

Devic e locked mode

Normal operation

POR

Device unlocked mode

Power of f

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11.8.5.3 Operation from POR after user password is set

When Device Lock Function is enabled, the device rejects media access command until a Security Unlock
command is successfully completed.

POR

Device Locked mode

Unlock CMD

Password

Match ?

N

Y

Password
Match ?

Enter Device
Unlock mo de

Figure 62. Usual operation

Erase Prepare

Erase U ni t
Password
Match ?

Y

Complete
Erase Unit

Lock function
Disable

Normal operation : All commands are available

Freeze Lock command

Enter Device Frozen mode
Normal Operation expect Set Password,
Disable Password, Erase Unit, Unlock commands.

Media Ac c es s

Command (*1) Command (*1)

N

Reject

Non-media access

Complete

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11.8.5.4 User Password lost

If the User Password is forgotten and High level security is set, the system user can't access any data.
However the device can be unlocked using the Master Password.

If a system user forgets the User Password and Maximum security level is set, data access is impossible.
However the device can be unlocked using the Security Erase Unit command to unlock the device and
erase all user data with the Master Password.

User Password Lost

Unlock EMD with Master Password

Normal oper ati on

Erase Prepare Command
Erase Unit Command
with Master Password

Normal operation but data lost

Figure 63. Password lost

LEVEL ? High

Maximum

11.8.5.5 Attempt limit for the SECURITY UNLOCK command

The SECURITY UNLOCK command has an attempt limit which helps to prevent a user from attempting to
unlock the drive with various passwords numerous times.

The device counts the password mismatch. If the password does not match, the device counts it without
distinguishing the Master password and the User password. If the count reaches 5, EXPIRE bit (bit 4) of
Word 128 in Identify Device information is set, and then the SECURITY ERASE UNIT command and the
SECURITY UNLOCK command are aborted until a hard reset or a power off. The count and EXPIRE bit
are cleared after a power on reset or a hard reset.

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11.8.6 Command table

This table shows the device's response to commands when the Security Mode Feature Set (Device lock
function) is enabled.

Command

Device

Locked Mode

Device Unlockeod

Mode

Device

Frozen Mode

oooCheck Power Mode
oooEnable/Disable Delayed Write
oooExecute Device Diagnostic
oooFlush Cache
ooxFormat Track
ooxFormat Unit
oooIdentify Device
oooIdentify Device DMA
oooIdle
oooIdle Immediate
oooInitialize Device Parameters
oooRead Buffer
ooxRead DMA (w/o retry)
ooxRead DMA (w/retry)
ooxRead Long (w/o retry)
ooxRead Long (w/retry)
ooxRead Multiple
oooRead Native Max ADDRESS
ooxRead Sector(s) (w/o retry)
ooxRead Sector(s) (w/retry)
ooxRead Verify Sector(s) (w/o retry)
ooxRead Verify Sector(s) (w/retry)
oooRecalibrate
xoxSecurity Disable Password
oooSecurity Erase Prepare
xooSecurity Erase Unit
ooxSecurity Freeze Lock
xoxSecurity Set Password
xooSecurity Unlock
oooSeek
oooSense Condition
oooSet Features
oooSet Max ADDRESS
oooSet Max FREEZE LOCK
oooSet Max LOCK
oooSet Max SET PASSWORD
oooSet Max UNLOCK
oooSet Multiple Mode
oooSleep
oooS.M.A.R.T. Disable Operations

Figure 64. Command table for device lock operation (1 of 2)

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