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Momentus 42 Product Manual, Rev. A

25

4.1.3

Set Features command

This command controls the implementation of various features that the drive supports. When the drive receives 
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an inter-
rupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. 
Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the 
Features register are defined as follows:  

Note.

At power-on, or after a hardware or software reset, the default values of the features are as indi-
cated above. 

Table 8: 

Features register values

02

H

Enable write cache (default).

03

H

 

Set transfer mode (based on value in Sector Count register).

 

 

Sector Count register values

00

H

Set PIO mode to default (PIO mode 2).

01

H

Set PIO mode to default and disable IORDY (PIO mode 2).

08

H

PIO mode 0

09

H

PIO mode 1

 0A

H

PIO mode 2

0B

H

PIO mode 3

0C

H

PIO mode 4 (default)

20

H

Multiword DMA mode 0

21

H

Multiword DMA mode 1

22

H

Multiword DMA mode 2

40

H

Ultra DMA mode 0

41

H

Ultra DMA mode 1

42

H

Ultra DMA mode 2

43

H

Ultra DMA mode 3

44

H

Ultra DMA mode 4

45

H

Ultra DMA mode 5

05

H

Enable advanced power management

55

H

Disable read look-ahead (read cache) feature.

82

H

Disable write cache.

AA

H

Enable read look-ahead (read cache) feature (default).

F1

H

Report full capacity available

Summary of Contents for Momentus 42 ST92014A

Page 1: ...Momentus 42 ST94019A ST93015A ST92014A ...

Page 2: ......

Page 3: ...Momentus 42 ST94019A ST93015A ST92014A ...

Page 4: ...SeaFONE SeaTDD SeaTools and the Wave logo are either registered trade marks or trademarks of Seagate Technology LLC Other product names are registered trade marks or trademarks of their owners Seagate reserves the right to change without notice product offerings or specifications No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC ...

Page 5: ...Revision status summary sheet Revision Date Sheets Affected Rev A 05 03 2004 All ...

Page 6: ......

Page 7: ...rature gradient 11 2 10 3 Humidity 11 2 10 4 Altitude 11 2 10 5 Shock 12 2 10 6 Vibration 12 2 11 Acoustics 13 2 12 Electromagnetic immunity 13 2 13 Reliability 14 2 14 Agency certification 14 2 14 1 Safety certification 14 2 14 2 Electromagnetic compatibility 14 2 14 3 FCC verification 15 3 0 Configuring and mounting the drive 17 3 1 Handling and static discharge precautions 17 3 2 Jumper setting...

Page 8: ...vi Momentus 42 Product Manual Rev A ...

Page 9: ...roduct Manual Rev A vii List of Figures Figure 1 Momentus 42 disc drive 1 Figure 2 Typical 5V startup and operation current profile 9 Figure 3 Jumper settings 17 Figure 4 Mounting dimensions top side and end view 18 ...

Page 10: ...viii Momentus 42 Product Manual Rev A ...

Page 11: ...ich provide the drives with increased areal density State of the art cache and on the fly error correction algorithms Full track multiple sector transfer capability without local processor intervention 800 Gs nonoperating shock and 225 Gs operating shock SeaTools diagnostic software performs a drive self test that eliminates unnecessary drive returns The 3D Defense System which includes Drive Defe...

Page 12: ...2 Momentus 42 Product Manual Rev A ...

Page 13: ...e heads 2 2 1 Discs 1 Cache Mbytes 2 Recording density BPI bits inch max 642 000 577 000 642 000 Track density TPI tracks inch max 100 780 Areal density Bbits inch2 max 65 58 65 Spindle speed RPM 4 200 class performance spin speed actually 5 400 RPM Internal data transfer rate OD Mbytes sec max 48 25 46 05 48 25 Sustained data transfer rate OD Mbytes sec 31 0 I O data transfer rate Mbytes sec max ...

Page 14: ...e operating 192 12 m to 3 048 m 650 ft to 10 000 ft Altitude nonoperating below mean sea level max 304 8 m to 12 192 m 1 000 ft to 40 000 ft Shock operating Gs max at 2 msec 225 Shock nonoperating Gs max at 2 msec 800 Shock nonoperating Gs max at 1 msec 800 Shock nonoperating Gs max at 0 5 msec 400 Vibration operating max displacement may apply below 10 hz 1 0 Gs 0 to peak 5 500 Hz Vibration nonop...

Page 15: ...to n 1 where n is the number of guaranteed sectors as defined above 2 4 Physical organization Model Formatted capacity Guaranteed sectors Bytes per sector ST94019A 40 Gbytes 78 140 160 512 ST93015A 30 Gbytes 58 605 120 512 ST92014A 20 Gbytes 39 070 080 512 Cylinders Read write heads Sectors per track 16 383 16 63 Model Read write heads Number of discs ST94019A 2 1 ST93015A 2 1 ST92014A 1 1 ...

Page 16: ...019A and ST92014A 58 ST93015A Spindle speed RPM 0 2 4 200 class performance spin speed actually 5 400 RPM Internal data transfer rate OD Mbytes sec max 48 25 ST94019A and ST92014A 46 05 ST93015A Sustained data transfer rate OD Mbytes sec max 31 0 I O data transfer rate Mbytes sec max 100 Ultra DMA mode 5 Interleave 1 1 Cache buffer ST94019A ST93015A and ST92014A 2 Mbytes 2 048 kbytes Height mm inc...

Page 17: ...ured in performance mode Note These drives are designed to consistently meet the seek times represented in this manual Physical seeks regardless of mode such as track to track and average are expected to meet or exceed the noted values However due to the manner in which these drives are formatted benchmark tests that include command overhead or measure logical seeks may produce results that vary f...

Page 18: ... measured with the heads on track based on three 63 sector read or write operations every 100 msecs Operating power and current Operating power is measured using 40 percent random seeks 40 percent read write mode 1 write for each 10 reads and 20 percent drive idle mode Idle mode power Idle mode power is measured with the drive up to speed with servo electronics active and with the heads in a rando...

Page 19: ... the 5 volt line Using 5 volt power the drive is expected to operate with a maximum of 100 mV peak to peak square wave injected noise at up to 10 MHz Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read write current 2 9 3 Voltage tolerance Voltage tolerance including noise 5V 5 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 0 0 0 2 0 4 0 6 0 8 1 0 Amps Seconds 5 V...

Page 20: ...urns to Active mode any time disc access is necessary Sleep mode The drive enters Sleep mode after receiving a Sleep command from the host In Sleep mode the drive buffer is disabled the heads are parked and the spindle is at rest The drive leaves Sleep mode after it receives a Hard Reset or Soft Reset from the host After receiving a reset the drive exits Sleep mode and enters Standby mode with all...

Page 21: ... by 1 C every 1000 feet 2 10 2 Temperature gradient 2 10 3 Humidity 2 10 3 1 Relative humidity 2 10 3 2 Wet bulb temperature 2 10 4 Altitude Operating 5 to 55 C 41 to 131 F Nonoperating 40 to 65 C 40 to 153 F Operating 20 C per hour 68 F per hour max without condensation Nonoperating 30 C per hour 86 F per hour max Operating 5 to 90 noncondensing 30 per hour max Nonoperating 5 to 95 noncondensing ...

Page 22: ...quently put into operation is 800 Gs based on a nonrepetitive half sine shock pulse of 1 msec duration The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 400 Gs based on a nonrepetitive half sine shock pulse of 0 5 msec duration 2 10 6 Vibration All vibration specifications assume that t...

Page 23: ...representative host system the drive operates without errors or degradation in performance when subjected to the radio frequency RF environments defined in the following table Table 4 Drive level acoustics Acoustic mode Idle Quiet Seek Performance Seek 2 3 bels typ 2 5 bels max 2 5 bels typ 2 7 bels max 3 0 bels typ 3 2 bels max Table 5 Electromagnetic immunity Test Description Performance level R...

Page 24: ...ms Although CE marked Seagate drives comply with the directives when used in the test systems we cannot guarantee that all systems will comply with the directives The drive is designed for operation inside a properly designed enclosure with properly shielded I O cable if necessary and terminators on all unused I O ports Computer manufacturers and system integrators should confirm EMC compliance an...

Page 25: ...gate Technology LLC has tested this device in enclosures as described above to ensure that the total assembly enclosure disc drive motherboard power supply etc does comply with the limits for a Class B computing device pursuant to Subpart J Part 15 of the FCC rules Operation with noncertified assemblies is likely to result in interference to radio and television reception Radio and television inte...

Page 26: ...16 Momentus 42 Product Manual Rev A ...

Page 27: ...cedure Handle the drive only by its edges or frame The drive is fragile handle it with care Do not press down on the drive top cover Always rest the drive on a padded antistatic surface until you mount it in the computer Do not touch the connector pins or the printed circuit board Do not remove the factory installed labels from the drive or cover them with additional labels Removal voids the warra...

Page 28: ...s Follow these important mounting precautions when mount ing the drive Allow a minimum clearance of 0 030 inches 0 76 mm around the entire perimeter of the drive for cooling Use only M3 UNC mounting screws Do not overtighten the mounting screws maximum torque 4 0 inch lb Four 4 threads 0 080 inches minimum screw engagement recommended Figure 4 Mounting dimensions top side and end view 157 3 9878 3...

Page 29: ...pins The following table summarizes the signals on the 44 pin ATA interface connector For a detailed description of these signals refer to the Draft ATA 6 Standard Table 6 Connector signals Signal Name Connector Contact Cable Conductor Cable Conductor Connector Contact Signal Name RESET 1 1 2 2 Ground DD7 3 3 4 4 DD8 DD6 5 5 6 6 DD9 DD5 7 7 8 8 DD10 DD4 9 9 10 10 DD11 DD3 11 11 12 12 DD12 DD2 13 1...

Page 30: ...r Mode 98H E5H Download Microcode 92H Execute Device Diagnostics 90H Flush Cache E7H Flush Cache Extended EAH Format Track Legacy 50H Identify Device ECH Idle 97H E3H Idle Immediate 95H E1H Initialize Device Parameters 91H Read Buffer E4H Read DMA C8H C9H Read DMA Extended 25H Read Log Extended 22H Read Multiple C4H Read Multiple Extended 29H Read Native Max Address F8H Read Native Max Address Ext...

Page 31: ...mmediate 94H E0H Vendor Unique 9AH FAH FBH Write Buffer E8H Write DMA CAH CBH Write DMA Extended 35H Write Log Extended 32H Write Multiple C5H Write Multiple Extended 39H Write Sectors 30H 31H Write Sectors Extended 34H ATA standard power management commands Check Power Mode 98H or E5H Idle 97H or E3H Idle Immediate 95H or E1H Sleep 99H or E6H Standby 96H or E2H Standby Immediate 94H or E0H ATA st...

Page 32: ...e media Bit 6 removable controller Bit 0 reserved 0C5AH 1 Number of logical cylinders 16 383 2 ATA reserved 0000H 3 Number of logical heads 16 4 Retired 0000H 5 Retired 0000H 6 Number of logical sectors per logical track 63 003FH 7 9 Retired 0000H 10 19 Serial number 20 ASCII characters 0000H none ASCII 20 Retired 0000H 21 Retired 0400H 22 Obsolete 0000H 23 26 Firmware revision 8 ASCII character s...

Page 33: ...ord DMA transfer cycle time per word 120 nsec 0078H 67 Minimum PIO cycle time without IORDY flow control 240 nsec 00F0H 68 Minimum PIO cycle time with IORDY flow control 120 nsec 0078H 69 74 ATA reserved 0000H 75 Queue depth 0000H 76 79 ATA reserved 0000H 80 Major version number 007EH 81 Minor version number 0000H 82 Command sets supported 346BH 83 Command sets supported 7D01H 84 Command sets supp...

Page 34: ... DMA mode 1 is currently active 10 Multiword DMA mode 2 is currently active Bit Word 88 0 Ultra DMA mode 0 is supported 1 Ultra DMA mode 1 is supported 2 Ultra DMA mode 2 is supported 3 Ultra DMA mode 3 is supported 4 Ultra DMA mode 4 is supported 8 Ultra DMA mode 0 is currently active 9 Ultra DMA mode 1 is currently active 10 Ultra DMA mode 2 is currently active 11 Ultra DMA mode 3 is currently a...

Page 35: ...the default values of the features are as indi cated above Table 8 Features register values 02H Enable write cache default 03H Set transfer mode based on value in Sector Count register Sector Count register values 00H Set PIO mode to default PIO mode 2 01H Set PIO mode to default and disable IORDY PIO mode 2 08H PIO mode 0 09H PIO mode 1 0AH PIO mode 2 0BH PIO mode 3 0CH PIO mode 4 default 20H Mul...

Page 36: ...ns The diagnostic software ships with all new drives and is also available at http seatools seagate com This drive is shipped with S M A R T features disabled You must have a recent BIOS or software package that supports S M A R T to enable this feature The table below shows the S M A R T command codes that the drive uses Note If an appropriate code is not written to the Features Register the comm...

Page 37: ...lated information To learn more about the benefits or to register go to reseller seagate com any time from anywhere in the world Automated Phone Services SeaFONE 1 800 SEAGATE is the Seagate toll free number 1 800 732 4283 to access our automated self help and directory assistance for Seagate support services Using a touch tone phone you can find ser vice and support phone numbers for disc drives ...

Page 38: ... Seagate service center representative for warranty related issues Resellers or end users of drive products should contact their place of purchase or one of the Seagate warranty service cen ters for assistance Have your drive s ST model number and serial number available Authorized Service Centers In some locations outside the US you can contact an Authorized Service Center for service ...

Page 39: ...8 34724 1 405 324 47204 1 405 324 4722 Latin America Canada Memofix5 1 800 636 6349 1 905 660 4936 1 905 660 4951 www memofix com Brazil MA Centro de Serviços5 55 21 2509 7267 55 21 2507 6672 www mainformatica com br produtos htm 1 Hours of operation are 8 00 A M to 11 45 A M and 1 00 P M to 6 00 P M Monday through Friday Central time 2 For product specific phone number 3 Hours of operation are 8 ...

Page 40: ...83 00 800 47324289 Germany 00 800 47324283 00 800 47324289 Ireland 00 800 47324283 00 800 47324289 Italy 00 800 47324283 00 800 47324289 Netherlands 00 800 47324283 00 800 47324289 Norway 00 800 47324283 00 800 47324289 Poland 00 800 311 12 38 00 800 311 12 38 Spain 00 800 47324283 00 800 47324289 Sweden 00 800 47324283 00 800 47324289 Switzerland 00 800 47324283 00 800 47324289 Turkey 00 800 31 9...

Page 41: ...oll free Direct dial FAX Australia 1800 14 7201 China Mandarin 1 4 800 810 9668 86 10 6225 5336 Hong Kong 800 90 0474 Hong Kong Cantonese 1 4 001 800 0830 1730 India2 4 1 600 33 1104 Indonesia 001 803 1 003 2165 Japan3 4 0034 800 400 554 Malaysia 1 800 80 2335 New Zealand 0800 443988 Singapore 800 1101 150 65 6488 7525 Taiwan Mandarin 1 4 00 800 0830 1730 Thailand 001 800 11 0032165 Warranty Servi...

Page 42: ...32 Momentus 42 Product Manual Rev A ...

Page 43: ...wer 8 density 6 Diagnostic Defense 1 diagnostic software 1 26 discs 5 dissipation 8 Download Microcode 20 Drive Defense 1 drive diagnostics 7 drive monitoring 1 drive self test 1 26 DST 26 E electrical fast transient 13 electromagnetic compatibility 14 Electromagnetic Compatibility Directive 14 electromagnetic immunity 13 electrostatic discharge 13 EMC compliance 14 EN 60950 14 enclosures 15 envir...

Page 44: ...specifications 8 power management commands 21 power management modes 10 Power on to Ready 7 precautions 18 programmable power management 10 R radiated RF immunity 13 radio and television interference 15 random track location 8 Read Buffer 20 Read DMA 20 Read DMA Extended 20 read errors 14 Read Multiple 1 20 Read Multiple Extended 20 Read Native Max Address 20 Read Native Max Address Extended 20 Re...

Page 45: ...ndby to Ready 7 static discharge precautions 17 subassembly 15 support services 27 surge immunity 13 T technical support services 27 temperature 11 temperature gradient 11 time to ready 7 timers 10 track density 6 track to track seek time 7 TUV North America 14 U UL 1950 14 V vibration 12 voltage 9 voltage dips interrupts 13 voltage tolerance 9 W Warranty 14 weight 6 wet bulb temperature 11 width ...

Page 46: ...36 Momentus 42 Product Manual Rev A ...

Page 47: ......

Page 48: ...Seagate Technology LLC 920 Disc Drive Scotts Valley California 95066 4544 USA Publication Number 100316029 Rev A Printed in USA ...

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