Seagate 810 Computer Drive User Manual
Contents
1. Set transfer mode based on value in Sector Count register Sector Count register values 00H Set PIO mode to default PIO mode 2 08H PIO mode 0 09H PIO mode 1 OAH PIO mode 2 default OBH PIO mode 3 OCH PIO mode 4 10H Single word DMA mode O 11H Single word DMA mode 1 12H Single word DMA mode 2 20H Multiword DMA mode 0 21H Multiword DMA mode 1 224 Multiword DMA mode 2 44H Sixteen bytes of ECC apply on Read Long and Write Long commands 55H Disable read look ahead read cache feature 66H Disable reverting to power on defaults 82H Disable write cache AAH Enable read look ahead read cache feature default BBH 4 bytes of ECC apply on Read Long and Write Long commands default CCH Enable reverting to power on defaults default Note At power on or after a hardware reset the default values of the features are as indicated above A software reset also changes the features to default values unless a 66H command has been received Marathon 810 ST9816AG Product Manual August 1995 29 Appendix Compatibility notes ECC testing When an ST9816AG performs hardware based ECC error correction on the fly the drive does not report an ECC error This allows ECC correction without degrading drive performance Some older drive diag nostic programs test ECC features by creating small data errors and then checking to see if they are reported These tests when run on an ST9816AG may incorrectly report an ECC detection fail2. both Idle and Standby mode the drive accepts all commands and returns to Active mode when disc access is necessary 1 8 Environmental tolerances 1 8 1 Ambient temperature Operating 5 to 55 C 41 to 131 F Nonoperating 40 to 70 C 40 to 158 F 1 8 2 Temperature gradient Operating 30 C hr 54 F hr max without condensation Nonoperating 30 C hr 54 F hr max without condensation 1 8 3 Relative humidity Operating 8 to 80 noncondensing 10 per hour max Max wet bulb temperature 29 4 C 85 F Nonoperating 8 to 80 noncondensing 10 per hour max Max wet bulb temperature 40 C 104 F Marathon 810 ST9816AG Product Manual August 1995 11 1 8 4 Altitude Operating 300 m to 3 040 m 1 000 ft to 10 000 ft Nonoperating 300 m to 12 190 m 1 000 ft to 40 000 ft 1 8 5 Shock All shock specifications assume that the drive is mounted in an approved orientation with the input levels at the drive mounting screws The nonoperating specifications assume that the read write heads are posi tioned in the shipping zone Note At power down the read write heads automatically move to the shipping zone The head and slider assembly park inside of the maximum data cylinder When power is applied the heads re calibrate to Track 0 1 8 5 1 Operating shock This drive incorporates SafeRite shock protection and can withstand a maximum operating shock of 100 Gs without nonrecoverable data errors base
3. number 004 000 00345 4 Marathon 810 ST9816AG Product Manual August 1995 15 2 0 Drive mounting and configuration 2 1 Handling and static discharge precautions After unpacking and before installation the drive may be exposed to potential handling and ESD hazards It is mandatory that you observe standard static discharge precautions A grounded wrist strap is pre ferred Handle the drive only by the sides of the head disc assembly Avoid contact with the printed circuit board all electronic components and the interface connector Do not apply pressure to the top cover Always rest the drive on a padded antistatic surface until you mount it in the host system 2 2 Jumper settings 2 2 1 Master slave configuration You must establish a master slave relationship between two drives attached to a single AT bus You can configure a drive to become a master or slave by setting the master slave jumpers as described below and shown in Figure 2 on page 16 Alternatively you can configure the drive as a master or slave using the cable select option This requires a specialized daisy chain cable that grounds pin 28 CSEL on one of its two drive connectors If you attach the drive to the grounded CSEL connector it becomes a master If you attach the drive to the ungrounded CSEL connector it becomes a slave To use this option the host system and both drives must support cable select and both drives must be configured for cable selec
4. Bit 3 Host Data Bus Bit 12 Host Data Bus Bit 2 Host Data Bus Bit 13 Host Data Bus Bit 1 Host Data Bus Bit 14 Host Data Bus Bit 0 Host Data Bus Bit 15 Ground No Pin DMA Request Ground Host I O Write Ground Host I O Read Ground 1 0 Channel Ready Cable Select pin DMA Acknowledge Ground Host Interrupt Request Host 16 Bit MO Host Address Bus Bit 1 Passed Diagnostics Host Address Bus Bit 0 Host Address Bus Bit 2 Host Chip Select 0 Host Chip Select 1 Drive Active Slave Present Ground 5 volts DC logic 5 volts DC motor Ground for power pins Reserved Host CSEL 28 PDIAG 34 DASP 39 Figure 5 I O pins and associated ATA signals supported by the ST9816AG Marathon 810 ST9816AG Product Manual August 1995 23 3 2 ATA Interface commands 3 2 1 Supported ATA commands The following table lists ATA standard and Seagate specific drive com mands that the ST9816AG supports For a detailed description of the ATA commands refer to the Draft Proposed ATA 2 Standard Command Supported by Command name code ST9816AG ATA standard commands Execute Drive Diagnostics 90H Yes Format Track 50H Yes Identify Drive ECH Yes Initialize Drive Parameters 91H Yes NOP 00H No Read Buffer E4H Yes Read DMA w retry C8H Yes Read DMA no retry C9H Yes Read Long w retry 22H Yes Read Long no retry 23H Yes Read Multiple C4H Yes Read Secto
5. SY Seagate 01995 Seagate Technology Inc All rights reserved Publication Number 36300 101 Rev A August 1995 Seagate Seagate Technology and the Seagate logo are registered trademarks of Seagate Technology Inc SafeRite and Marathon are trademarks of Seagate Technology Inc Other product names are reg istered trademarks 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 from Seagate Technology Inc Marathon 810 ST9816AG Product Manual August 1995 Contents Introduction oa oa ad a a a E RE Specification summary table 1 0 Drive specifications lt 1 1 Formatted capacity o 1 1 1 Default logical geometry 1 1 2 Supported translation geometries 1 2 Physical organization 1 3 Recording and interface technology 1 4 Physicaldimensions 24 1 5 Seek time o e 00000 1 6 Slarlu imes assess ss Eu me a EOS 1 7 Power specifications 2 22 nn 1 7 1 Power consumption 2 2 22 nn 1 7 2 Power recovery 2 2 1 7 3 Conducted noise o e 1 7 4 Voltage tolerance o 1 7 5 Power management modes 1 8 Environmental tolerances 1 8 1 Ambient temperat
6. attached to a connector in which pin 28 is ungrounded then it becomes a slave 2 3 Remote LED configuration The drive indicates activity to the host through the DASP line pin 39 on the ATA interface This line may be connected to a drive status indicator driving an LED at 5V The line has a 30 mA nominal current limit To avoid potential damage to the drive the host should include a resistor in line with the LED for current limiting This resistor should have a minimum resistance of 470 ohms 1 000 to 3 000 ohms is recommended 2 4 Drive mounting You can mount the drive in any orientation Allow a minimum clearance of 0 030 inches 0 76 mm around the entire perimeter of the drive for cooling The drive conforms to the industry standard MCC direct mount ing specifications and requires MCC compatible connectors for direct mounting applications See Figure 3 on page 18 for drive mounting dimensions Note The I O connector pins may extend up to 0 010 inches beyond the edge of the head disc assembly Caution To avoid damaging the drive e Use M3X0 5 metric mounting screws only e Do not insert mounting screws more than 0 150 inches 3 81 mm into the mounting holes e Do not overtighten the screws maximum torque 3 inch Ib 18 Marathon 810 ST9816AG Product Manual August 1995 Dimensions are in inches mm 0 747 0 007 18 97 0 18 4 010 101 85 max i head disc assembly i 0 000 4X 3 m
7. connector The frequency is 10 Hz to 100 KHz with equivalent resistive loads e 100 mV peak to peak triangular wave injected noise at the power connector The frequency is 100 KHz to 10 MHz with equivalent resistive loads Note Equivalent resistance 11 9 ohms is calculated by dividing the nominal voltage 5 0V by the typical RMS read write current 0 420 amps 1 7 4 Voltage tolerance Voltage tolerance including noise 5 volts 5 10 1 7 5 Power management modes Power management is required for low power and portable computer systems In most systems you can control power management through the system setup program This Seagate drive features several power management modes which are described briefly below Active mode The drive is in Active mode during the read write and seek operations Idle mode At power on the drive sets the idle timer to enter Idle mode after 5 seconds of inactivity You can set the idle timer delay using the system setup utility In Idle mode the spindle remains up to speed The heads are parked away from the data zones for maximum data safety The buffer remains enabled and the drive accepts all commands and returns to Active mode any time disc access is necessary Standby mode The drive enters Standby mode when the host sends a Standby Immediate command Ifthe standby timer has been set by the host system the drive can also enter Standby mode automatically afterthe drive has been inact
8. d on half sine shock pulses of 2 or 11 msec 1 8 5 2 Nonoperating shock The nonoperating shock level that the drive can experience with com plete data recovery is 250 Gs based on half sine shock pulses of 2 msec duration or 150 Gs based on half sine shock pulses of 11 msec duration Shock pulses are defined by MIL STD 202 F with the ampli tude tolerance controlled to 5 1 8 6 Vibration All vibration specifications assume that the drive is mounted in an approved orientation with the input levels at the drive mounting screws The nonoperating specifications assume that the read write heads are positioned in the shipping zone 1 8 6 1 Operating vibration The following table lists the maximum vibration levels that the drive may experience without incurring physical damage or degradation in performance 5 450 Hz 0 50 Gs acceleration peak 450 5 Hz 0 50 Gs acceleration peak 12 Marathon 810 ST9816AG Product Manual August 1995 1 8 6 2 Nonoperating vibration The following table lists the maximum nonoperating vibration that the drive may experience without incurring physical damage or degradation in performance when put into operation 5 22 Hz 0 162 inch displacement double amplitude 22 450 Hz 4 Gs acceleration peak 450 22 Hz 4 Gs acceleration peak 22 5 Hz 0 162 inch displacement double amplitude 1 9 Drive acoustics Drive acoustics are measured as sound pressure 1 meter from the drive Mode Typical Maxim
9. ead cylinder and sector geometries subject to the maximums specified below and to the following condition sectors x heads x cylinders lt total sectors per drive ST9816AG Sectors per track max 63 Read Write heads max 16 Cylinders max 1 571 1 2 Physical organization ST9816AG Read Write heads 8 Discs 4 6 Marathon 810 ST9816AG Product Manual August 1995 1 3 Recording and interface technology Interface Recording method Recording density bits inch Flux density flux change inch Track density tracks inch Areal density Mbits inch Spindle speed RPM 0 5 Internal data transfer rate Mbits per sec max ZBR I O data transfer rate Mbytes per sec max Interleave Cache buffer Kbytes ATA RLL 1 7 90 000 67 500 3 807 342 4 500 44 16 6 PIO mode 4 with IORDY 16 6 multiword DMA mode 2 1 1 120 1 4 Physical dimensions Height max inches mm Width max inches mm Depth max inches mm Weight typical ounces kg 0 754 19 15 2 76 70 10 4 010 101 85 7 4 0 21 Note Maximum depth excludes I O connector pins which may extend up to 0 010 inches beyond the edge of the head disc assembly Marathon 810 ST9816AG Product Manual August 1995 7 1 5 Seek time All seek times are measured using a 25 MHz 486 AT computer or faster with a 8 3 MHz I O bus The measurements are taken with nominal power at sea level and 25 C ambient t
10. emperature The specifications in the table below are defined as follows e Track to track seek time is an average of all possible single track seeks in both directions e Average seek time is a true statistical random average of at least 5 000 measurements of seeks between random tracks less overhead e Full stroke seek time is one half the time needed to seek from the first data cylinder to the maximum data cylinder and back to the first data cylinder The full stroke typical value is determined by averaging 100 full stroke seeks in both directions Seek type Typical read Typical write msec msec Track to track 6 7 Average 16 20 Full stroke 26 28 Average latency 6 67 msec 1 6 Startup times Power on to Ready sec 7 typical Standby to Ready sec 3 typical 10 max Note The drive responds to nonmedia commands within 2 seconds max of power up and responds to media commands within 12 seconds max of power up 1 7 Power specifications The drive receives DC power 5V through pin 41 and pin 42 ofthe ATA interface connector 1 7 1 Power consumption Power requirements for the drive are listed in the table below Typical power measurements are based on an average of drives tested under nominal conditions using 5 0V input voltage at 25 C ambient temperature at sea 8 Marathon 810 ST9816AG Product Manual August 1995 level Active mode current and power are measured with a 32 msec delay between each
11. ive for a specifiable length of time The standby timer delay 10 Marathon 810 ST9816AG Product Manual August 1995 is system dependent and is usually established using the system setup utility In Standby mode the buffer remains enabled the heads are parked and the spindle is at rest The drive accepts all commands and returns to Active mode any time disc access is necessary Sleep mode The drive enters Sleep mode after receiving a Sleep Immediate command from the host The heads are parked and the spindle is at rest The drive leaves Sleep mode when a Hard Reset or Soft Reset command is received from the host After receiving a soft reset the drive exits Sleep mode and enters Standby mode with all current emulation and translation parameters intact Idle and standby timers The drive sets the default time delay for the idle timer at power on In most systems you can set this delay using the system setup utility Each time the drive performs an Active function read write or seek the idle and standby timers are reinitialized and begin counting down from their specified delay times to zero If the idle timer reaches zero before any drive activity is required the drive enters Idle mode If the host has set the standby timer the standby countdown continues If the host has not set the standby timer the drive remains in Idle mode If the standby timer reaches zero before any drive activity is required the drive enters Standby mode In
12. m x 0 5 mm gt 0 152 0 005 x 0 15 in 3 81 mm deep 3 86 0 13 min full thread 2 each side 1 227 0 020 31 17 0 51 i 4 020 102 11 max head disc assembly to tip of pins 1 500 0 010 1 375 0 015 38 10 0 25 0 000 34 93 0 38 0 155 0 020 a gt O 3 94 0 51 0 000 _Y_ 0 239 0 035 6 07 0 89 2 760 70 10 max 4X 3 mm x 0 5 mm x 0 15 in 3 81 mm deep min full thread Pin 20 removed or keying Pin 1 0 079 2 00 E gt a 57 o 99 0 AA 4 gt 0 079 2 00 A 1 659 42 14 l Figure 3 Mounting dimensions for the ST9816AG Marathon 810 ST9816AG Product Manual August 1995 19 2 5 ATA interface connector The drive connector is a 44 conductor connector with 2 rows of 22 male pins on 0 079 inch 2 mm centers see Figures 4 and 5 The mating cable connector is a 44 conductor nonshielded connector with 2 rows of 22 female contacts on 0 079 inch 2 mm centers The connectors should provide strain relief and should be keyed with a plug in place of pin 20 These drives are designed to support the industry standard MCC direct mounting specifications When installing these drives in fixed mounting applications use only MCC compatible connectors such as Molex part number 87368 442x For applications involving flexible cables or printed circuit cables PCCs use Molex part number 87259 4413 or e
13. n the table below All reserved bits or words should be setto zero Parameters listed with an x are drive specific or vary with the state of the drive See Section 1 ofthis manual for default parameter settings forthe ST9816AG Word Description ST9816AG Configuration information e Bit 10 disc transfer gt 10 Mbits sec e Bit 6 fixed drive e Bit 4 head switch time gt 15 usec pic e Bit 3 not MFM encoded e Bit 1 hard sectored disc Number of fixed cylinders 1 default logical emulation 1 571 0023H 2 ATA reserved 0000H 3 Number of heads default logical emulation 16 0010H 4 Number of unformatted bytes per track 36 240 8D90H 5 Number of unformatted bytes per sector 584 248H 6 Number of sectors per track 003FH default logical emulation 63 7 9 ATA reserved 0000H Serial Number I 20 ASCII characters 0000H none ASLI Controller type dual port multisector buffer 20 with caching ob ah 21 Buffer size 240 sectors of 512 bytes each OOFOH 22 Number of ECC bytes available 16 0010H Firmware revision 8 ASCII character string 23 26 xx ROM version ss RAM version tt RAM xx ss tt version 26 Marathon 810 ST9816AG Product Manual August 1995 Word Description ST9816AG 27 46 Drive model number 40 ASCII characters padded with blanks to end of string ST9816AG 47 Maximum sectors per interrupt on read wri
14. nector and master slave jumper setup for the ST9BIGAG wo cia o e ee eae a 16 Figure 3 Mounting dimensions for the ST9816AG 18 Figure 4 ATA Interface connector dimensions 19 Figure 5 I O pins and associated ATA signals supported by the ST9B1IGAG ax 2 oia Yee a Boda Mh et 22 Marathon 810 ST9816AG Product Manual August 1995 1 Introduction The Marathon 810 ST9816AG provides high storage capacity in a small low profile hard disc drive Key features SafeRite shock protection Low power consumption Compact MCC compatible form factor Quiet operation Advanced partial response maximum likelinood PRML read channel Supports logical block addressing Supports PIO modes 0 1 2 3 and 4 and DMA modes 0 1 and 2 High instantaneous data transfer rates up to 16 6 Mbytes per second using PIO mode 4 and DMA mode 2 Fast microprocessor for lower command overhead 120 Kbyte multisegmented adaptive cache Advanced caching and on the fly error correction algorithms Supports Read Multiple and Write Multiple commands Supports autodetection of master slave drives using cable select and DASP signals 2 Marathon 810 ST9816AG Product Manual August 1995 Specification summary table The specifications listed in this table are for quick reference For details on specification measurement or definition see the appropriate section of this manual Dri
15. operation and the drive in default logical geometry Seeking power and currents are measured during one third stroke buff ered seeks Read Write power and current are measured with the heads on track based on a 16 sector write followed by a 32 msec delay then a 16 sector read followed by a 32 msec delay Spinup power is measured from time of power on to time of drive ready for normal operation Typical watts RMS Typical amps RMS Mode at nominal voltage at nominal voltage Spinup 3 50 0 700 Active Seeking 2 10 0 420 Read Write 2 10 0 420 Idle 1 30 0 260 Standby 0 40 0 080 Sleep 0 30 0 060 1 7 1 1 Typical current profile Figure 1 shows a typical current profile for the ST9816AG Current Amps 1 6 Spinup Vas Drive ready 1 2 1 0 Upload code a Active Ide Standby Sleep mode mode mode mode 5 6 Time seconds Figure 1 Typical startup and operation current profile for the ST9816AG Marathon 810 ST9816AG Product Manual August 1995 9 1 7 2 Power recovery Except during execution of a write command the drive s power can be interrupted without adversely affecting the drive or previously written data If power is removed while the drive is performing a write operation the integrity of the data being written cannot be guaranteed 1 7 3 Conducted noise The drive is expected to operate with a maximum of e 150 mV peak to peak triangular wave injected noise at the power
16. orking Draft of the ATA 2 Draft Pro posed American National Standard document X3T9 2 948D sub sequently referred to as the Draft Proposed ATA 2 Standard 3 1 ATA interface signals and connector pins Figure 5 on page 22 summarizes the signals on the ATA interface connector that are supported by the ST9816AG For a detailed descrip tion of these signals refer to the Draft Proposed ATA 2 Standard 3 1 1 AT bus signal levels Signals that the drive sends have the following output characteristics at the drive connector Logic Low 0 0V to 0 4V Logic High 2 5V to 5 25V Signals that the drive receives must have the following input charac teristics measured at the drive connector Logic Low 0 0V to 0 8V Logic High 2 0V to 5 25V 22 Marathon 810 ST9816AG Product Manual August 1995 Drive pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Signal name Reset Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DDO DD15 Ground removed DMARQ Ground DIOW Ground DIOR Ground IORDY CSEL DMACK Ground INTRQ 10CS16 DA1 PDIAG DAO DA2 CS1FX CS3FX DASP gt Ground Power Power Ground Reserved Host pin and signal description Host Reset Ground Host Data Bus Bit 7 Host Data Bus Bit 8 Host Data Bus Bit 6 Host Data Bus Bit 9 Host Data Bus Bit 5 Host Data Bus Bit 10 Host Data Bus Bit 4 Host Data Bus Bit 11 Host Data Bus
17. ps Sleep mode power and current typical 0 30 watts 0 060 amps Voltage tolerance including noise Ambient temperature C 5 volts 5 10 5 to 55 op 40 to 70 nonop Temperature gradient C per hour max 30 Relative humidity 8 80 10 hr max grad Wet bulb temperature C max 29 op 40 nonop Altitude meters above mean sea level max 300 to 3 040 op 300 to 12 190 nonop Shock operating Gs max at 2 or 11 msec 100 Shock nonoperating Gs max 250 2 msec 150 11 msec Vibration Gs max at 22 450 Hz Drive Acoustics Idle mode dBA 0 50 op 4 0 nonop 26 typical 30 max Drive Acoustics seeking dBA Nonrecoverable read errors 29 typical 33 max 1 per 101 bits read Mean time between failures power on hours 300 000 Contact start stop cycles 50 000 Service life years 5 Marathon 810 ST9816AG Product Manual August 1995 5 1 0 Drive specifications Unless otherwise noted all specifications are measured under ambient conditions at 25 C at sea level and nominal power 1 1 Formatted capacity ST9816AG Guaranteed Mbytes 810 7 1 Mbyte 10 bytes Guaranteed sectors 1 583 568 Bytes per sector 512 1 1 1 Default logical geometry ST9816AG Sectors per track 63 Read Write heads 16 Cylinders 1 571 1 1 2 Supported translation geometries The ST9816AG supports all h
18. quivalent to connect the drive to the system Select a connector that provides adequate clearance for the master slave configuration jumpers if the application requires the use of such jumpers The ATA interface cable should be no more than 18 inches long Note The I O connector pins may extend up to 0 010 inches beyond the edge of the head disc assembly Dimensions are in inches mm 0 152 0 005 Master slave jumpers 3 71 0 20 0 079 0 003 lt 0 020 0 002 0 020 0 002 2 00 0 08 0 51 0 05 0 51 0 08 oooutboooodgooooooooooo booooooooooo oooooooo 4 0 079 0 003 2 00 0 08 1 654 42 01 _ 0 158 0 003 4 00 0 08 Figure 4 ATA Interface connector dimensions for reference only Marathon 810 ST9816AG Product Manual August 1995 21 3 0 ATA interface The ST9816AG uses the industry standard ATA interface It supports both 8 bit and 16 bit data transfers It supports ATA programmed in put output PIO modes 0 1 2 3 and 4 ATA single word DMA modes 0 1 and 2 and ATA multiword DMA modes 0 1 and 2 The drive also supports the use of the IORDY signal to provide reliable high speed data transfers The drive can differentiate between a hard reset and a soft reset while in Sleep mode You can use a daisy chain cable to connect two drives to a single AT host bus For detailed information regarding the ATA interface refer to the Proposed W
19. rs w retry 20H Yes Read Sectors no retry 21H Yes Read Verify Sectors w retry 40H Yes Read Verify Sectors no retry 41H Yes Recalibrate 1H Yes Seek 7H Yes Set Features EFH Yes Set Multiple Mode C6H Yes Write Buffer ESH Yes 24 Marathon 810 ST9816AG Product Manual August 1995 Command Supported by Command name code ST9816AG Write DMA w retry CAH Yes Write DMA no retry CBH Yes Write Long w retry 32H Yes Write Long no retry 33H Yes Write Multiple C5H Yes Write Same E9H No Write Sectors w retry 30H Yes Write Sectors no retry 31H Yes Write Verify 3CH No ATA standard power management commands Check Power Mode 98H or E5H Yes Idle 97H or E3H Yes Idle Immediate 95H or E1H Yes Sleep 99H or E6H Yes Standby 96H or E2H Yes Standby Immediate 94H or EOH Yes Seagate specific commands Active and Set Idle timer FBH Yes Active Immediate F9H Yes Check Idle Mode FDH Yes Idle Immediate F8H Yes ldle and Set ldle timer FAH Yes Marathon 810 ST9816AG Product Manual August 1995 25 The following commands contain drive specific features or are not de scribed in the Draft Proposed ATA 2 Standard 3 2 2 Identify Drive command The Identify Drive command command code ECH transfers information about the drive to the host after power up The data is organized as a single 512 byte block of data whose contents are shown i
20. served 0000H Note DMA mode settings in the Identify Drive command are reflected in the bit settings for words 62 and 63 as shown below Word 62 62 62 62 62 62 63 63 63 63 63 63 Bit Description if bit is set to 1 0 Single word DMA mode 0 available 1 Single word DMA mode 1 available 2 Single word DMA mode 2 available 8 Single word DMA mode 0 currently active 9 Single word DMA mode 1 currently active 10 Single word DMA mode 2 currently active 0 Multiword DMA mode 0 available Multiword DMA mode 1 available Multiword DMA mode 2 available mk Multiword DMA mode 0 currently active Multiword DMA mode 1 currently active O O N O Multiword DMA mode 2 currently active 28 Marathon 810 ST9816AG Product Manual August 1995 3 2 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 interrupt Ifthe 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 and 4 bytes of ECC The acceptable values for the Features register are defined as follows 00H Set PIO mode to default PIO mode 2 and enable IORDY 01H Set PIO mode to default PIO mode 2 and disable IORDY 02H Enable write cache default 03H
21. t To configure an ST9816AG for cable select install both master slave jumpers For the host to recognize the slave drive using the DASP signal the slave drive must assert the DASP signal at power up and the master drive must monitor DASP at power up 16 Marathon 810 ST9816AG Product Manual August 1995 oF Note Drive is shown with circuit board up Master slave Pin 1 configuration jumpers Pin 20 removed for keying Circuit board Drive is master slave may be detected using DASP signal e e Drive is master Seagate slave drive present e e e e jd Drive is slave Seagate master drive present a Use CSEL pin grounding to differentiate master from slave 3 Figure 2 Connector and master slave jumper setup for the ST9816AG Marathon 810 ST9816AG Product Manual August 1995 17 Jumper Jumper for pins for pins AandB CandD Configuration Removed Removed Drive is master slave drive may be detected using DASP signal CSEL is ignored Removed Installed Drive is master slave drive is present CSEL is ignored DASP is ignored Installed Removed Drive is slave a master drive should be present also CSEL is ignored Installed Installed Differentiate master and slave drives using cable select If a drive is attached to a connector in which pin 28 is grounded then it becomes a master If a drive is
22. te 00104 multiple 48 Double word I O not supported 0000H Standby timer ATA compliant IORDY 49 supported can be disabled LBA mode 2F00H supported DMA mode supported 50 ATA reserved 0000H 51 PIO data transfer cycle timing mode 0200H 52 DMA transfer cycle timing mode not used 0000H Validity of words 54 58 and words 64 70 words may be valid 9008 54 Number of cylinders current emulation mode XXXXH 55 Number of heads po current emulation mode 56 Number of sectors per track or current emulation mode 57 58 Number of sectors current emulation mode XXXXH 59 Number of sectors transferred during a Read Dn Multiple or Write Multiple command 60 61 LBA sectors available 1 583 648 182A20H Single word DMA active DMA modes supported see Note following table RIM Multiword DMA active DMA modes supported pe see Note following table ROTE 64 Advanced PIO modes supported modes 3 and 00034 4 supported Minimum multiword DMA transfer cycle time an per word 120 nsec 90780 66 Recommended multiword DMA transfer cycle 00B4H time per word 180 nsec Marathon 810 ST9816AG Product Manual August 1995 27 Word Description ST9816AG Minimum PIO cycle time without IORDY flow 67 control 363 nsec 0116B4 Minimum PIO cycle time with IORDY flow oF control 120 nsec ADFBN 69 127 ATA reserved 0000H 128 159 Seagate reserved XXXXH 160 255 ATA re
23. um Idle mode dBA 26 30 Seek dBA 29 33 1 10 Reliability Nonrecoverable read errors 1 per 1013 bits read Mean time between failures 300 000 power on hours nominal power at sea level 25 C ambient temperature Contact start stop cycles 50 000 cycles at nominal voltage and temperature with 60 cycles per hour and a 50 duty cycle Preventive maintenance None required Service life 5 years Marathon 810 ST9816AG Product Manual August 1995 13 1 11 Agency certification 1 11 1 Safety certification The ST9816AG is listed in accordance with UL 1950 and CSA C22 2 950 M89 and meets all applicable sections of IEC 380 IEC 435 IEC 950 VDE 0806 08 81 and EN 60950 as tested by TUV Rheinland North America 1 11 2 FCC verification The ST9816AG is intended to be contained solely within a personal computer or similar enclosure not attached to an external device As such each drive is considered to be a subassembly even when it is individually marketed to the customer As a subassembly no Federal Communications Commission authorization verification or certification of the device is required Seagate Technology Inc has tested this device in enclosures as de scribed above to ensure that the total assembly enclosure disc drive motherboard power supply etc does comply with the limits for a Class B computing device pursuant to Subpart J of Part 15 of the FCC rules Operation with noncertified assemblies is likel
24. ure 1 8 2 Temperature gradient 1 8 3 Relative humidity 18 4 Altitude acostada a ton the Ms alta aa a 1 8 9 SHOCkex an 2 002 a e a 1 8 6 Vibration 0 o e e 1 9 Drive acoustics 1 10 Reliability Coon 1 11 Agency certification 0 1 11 1 Safety certification iv Marathon 810 ST9816AG Product Manual August 1995 1 11 2 FCC verification 2 22 2 mann 13 2 0 Drive mounting and configuration 15 2 1 Handling and static discharge precautions 15 2 2 Jumper settings o 15 2 2 1 Master slave configuration 15 2 3 Remote LED configuration 17 2 4 Drive mounting o e eee 17 2 5 ATA interface connector 0 19 3 0 ATA interface 2 2 teria e a RR e 21 3 1 ATA interface signals andconnectorpins 21 3 1 1 AT bus signal levels 21 3 2 ATA Interface commands aoaaa a 23 3 2 1 Supported ATAcommands 23 3 2 2 Identify Drive command 25 3 2 3 Set Features command 28 Appendix Compatibility notes 29 Marathon 810 ST9816AG Product Manual August 1995 V Figures Figure 1 Typical startup and operation current profile for the STIBIG G A mio id a la a las e ee 8 Figure 2 Con
25. ure because the drive hardware corrects the data automatically avoiding the error rather than reporting it This type of report does not indicate a drive malfunction SS Seagate Seagate Technology Inc 920 Disc Drive Scotts Valley California 95066 USA Publication Number 36300 101 August 1995 Printed in USA
26. ve Specification ST9816AG Guaranteed Capacity x10 bytes 810 Guaranteed sectors 1 583 568 Bytes per sector 512 Default sectors per track 63 Default Read Write heads 16 Default cylinders 1 571 Physical read write heads 8 Discs 4 Recording density bits inch 90 000 Track density tracks inch 3 807 Areal density Mbits inch 342 Spindle speed RPM 4 500 Internal data transfer rate Mbits sec max 44 I O data transfer rate Mbytes sec max 16 6 ATA data transfer modes supported PIO modes 0 1 2 3 4 Multiword DMA modes 0 1 2 Cache buffer Kbytes 120 Height inches max 0 754 Width inches max 2 76 Depth inches max excluding I O pins 4 010 Weight ounces typical 7 4 Track to track seek time msec typical 6 read 7 write Average seek time msec typical 16 read 20 write Full stroke seek time msec max 26 read 28 write Marathon 810 ST9816AG Product Manual August 1995 Drive Specification ST9816AG Average latency msec 6 67 Power on to ready seconds typical 7 Standby to ready seconds typical 3 Spinup power and current typical 3 50 watts 0 700 amps Seek power and current typical 2 10 watts 0 420 amps Read Write power and current typical 2 10 watts 0 420 amps Idle mode power and current typical 1 30 watts 0 260 amps Standby mode power and current typical 0 40 watts 0 080 am
27. y to result in interference with radio and television reception Radio and television interference This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the manufacturer s instructions may cause interfer ence to radio and television reception This equipment is designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television which can be determined by turning the equipment on and off you are encouraged to try one or more of the following corrective measures e Reorient the receiving antenna e Move the device to one side or the other of the radio or TV e Move the device farther away from the radio or TV e Plug the computer into a different outlet so that the receiver and computer are on different branch outlets If necessary you should consult your dealer or an experienced ra dio television technician for additional suggestions You may find helpful the following booklet prepared by the Federal Communications 14 Marathon 810 ST9816AG Product Manual August 1995 Commission How to Identify and Resolve Radio Television Interference Problems This booklet is available from the Superintendent of Docu ments US Government Printing Office Washington DC 20402 Refer to publication
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