..................................... Marathon 810 ..................................... ATA Interface Drive ..................................... ..................................... ..................................... Product Manual .....................................
..................................... Marathon 810 (ST9816AG) ..................................... ATA Interface Drive ..................................... ..................................... ..................................... Product Manual .....................................
1995 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 registered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications.
Marathon 810 (ST9816AG) Product Manual, August 1995 iii Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specification summary table . . . . . . . . . . . . . . . . . . . 2 1.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 Default logical geometry . . . . . . . . . . . . . . . . 5 1.1.2 Supported translation geometries . . . . . . . . . . . 5 1.2 Physical organization . . . . . .
iv Marathon 810 (ST9816AG) Product Manual, August 1995 1.11.2 FCC verification . . . . . . . . . . . . . . . . . . . . 13 2.0 Drive mounting and configuration . . . . . . . . . . . . . . 15 2.1 Handling and static-discharge precautions . . . . . . . . . 15 2.2 Jumper settings . . . . . . . . . . . . . . . . . . . . . . . 15 2.2.1 Master/slave configuration . . . . . . . . . . . . . . . 15 2.3 Remote LED configuration 2.4 Drive mounting . . . . . . . . . . . . . . . . . 17 . . . . . . . . . . . . . . . .
Marathon 810 (ST9816AG) Product Manual, August 1995 v Figures Figure 1. Typical startup and operation current profile for the ST9816AG . . . . . . . . . . . . . . . . . . . . . . 8 Figure 2. Connector and master/slave jumper setup for the ST9816AG . . . . . . . . . . . . . . . . . . . . . . 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 ST9816AG . . .
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-likelihood (PRML) read channel • Supports logical block addressing • Supports PIO modes 0, 1, 2, 3 and 4, and DMA modes 0, 1 and 2.
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.
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.
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 (1 Mbyte = 106 bytes) 810.7 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.
6 Marathon 810 (ST9816AG) Product Manual, August 1995 1.3 Recording and interface technology Interface ATA Recording method RLL (1,7) Recording density (bits/inch) 90,000 Flux density (flux change/inch) 67,500 Track density (tracks/inch) 2 3,807 Areal density (Mbits/inch ) 342 Spindle speed (RPM) ( ± 0.5%) 4,500 Internal data-transfer rate (Mbits per sec max—ZBR) 44 I/O data-transfer rate (Mbytes per sec max) 16.6 (PIO mode 4 with IORDY) 16.
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 temperature. The specifications in the table below are defined as follows: • Track-to-track seek time is an average of all possible single-track seeks in both directions.
8 Marathon 810 (ST9816AG) Product Manual, August 1995 level. Active mode current and power are measured with a 32-msec delay between each operation and the drive in default logical geometry. Seeking power and currents are measured during one-third-stroke buffered 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.
Marathon 810 (ST9816AG) Product Manual, August 1995 1.7.2 9 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: • 150 mV peak-to-peak triangular-wave injected noise at the power connector.
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.
Marathon 810 (ST9816AG) Product Manual, August 1995 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 11 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 positioned in the shipping zone. Note.
12 1.8.6.2 Marathon 810 (ST9816AG) Product Manual, August 1995 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.
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).
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 Documents, US Government Printing Office, Washington, DC 20402. Refer to publication 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 preferred. Handle the drive only by the sides of the head/disc assembly.
16 Marathon 810 (ST9816AG) Product Manual, August 1995 Note. Drive is shown with circuit board up. Master/slave Pin 1 configuration jumpers Pin 20 removed for keying Circuit board B A D C Drive is master; slave may be detected using DASP– signal Drive is master; Seagate slave drive present Drive is slave; Seagate master drive present Use CSEL pin grounding to differentiate master from slave Figure 2.
Marathon 810 (ST9816AG) Product Manual, August 1995 Jumper for pins A and B Jumper for pins C and D 17 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.
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. (head/disc assembly) 0.118 ± 0.010 (3.00 ± 0.25) 0.000 0.152 ± 0.005 (3.86 ± 0.13) 4X 3 mm × 0.5 mm × 0.15 in. (3.81 mm) deep min. full thread 1.227 ± 0.020 (2 each side) (31.17 ± 0.51) 4.020 (102.11) max (head/disc assembly to tip of pins) 1.500 ± 0.010 (38.10 ± 0.25) 0.000 1.375 ± 0.015 (34.93 ± 0.38) 0.155 ± 0.020 (3.94 ± 0.51) 0.000 0.239 ± 0.035 (6.07 ± 0.89) 2.
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.
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 input/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.
22 Marathon 810 (ST9816AG) Product Manual, August 1995 Drive pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Signal name Reset– Ground DD7 DD8 DD6 DD9 DD5 DD10 DD4 DD11 DD3 DD12 DD2 DD13 DD1 DD14 DD0 DD15 Ground (removed) DMARQ Ground DIOW– Ground DIOR– Ground IORDY CSEL DMACK– Ground INTRQ IOCS16– DA1 PDIAG– DA0 DA2 CS1FX– CS3FX– DASP– Ground Power Power Ground Reserved Host pin # and signal description 1 2 3 4 5 6 7 8 9 1
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 commands that the ST9816AG supports. For a detailed description of the ATA commands, refer to the Draft Proposed ATA-2 Standard.
24 Marathon 810 (ST9816AG) Product Manual, August 1995 Command code Supported by 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 Command name ATA-standard power-management commands Check Power Mode 98H or E5H Yes Idle 97H or E3H Yes Idle Immediate 95H or E1H Yes Sleep
Marathon 810 (ST9816AG) Product Manual, August 1995 25 The following commands contain drive-specific features or are not described 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 in the table below. All reserved bits or words should be set to zero.
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) 47 Maximum sectors per interrupt on read/write multiple 0010H 48 Double word I/O (not supported) 0000H 49 Standby timer (ATA compliant), IORDY (supported/can be disabled), LBA mode (supported), DMA mode (supported) 2F00H 50 ATA reserved 0000H 51 PIO data-transfer cycle timing mode 0200H 52 DMA transfer cycle timing mode (
Marathon 810 (ST9816AG) Product Manual, August 1995 Word Description 27 ST9816AG 67 Minimum PIO cycle time without IORDY flow control (363 nsec) 016BH 68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078H 69–127 ATA reserved 0000H 128–159 Seagate reserved xxxxH 160–255 ATA reserved 0000H Note. DMA mode settings in the Identify Drive command are reflected in the bit settings for words 62 and 63, as shown below.
28 3.2.3 Marathon 810 (ST9816AG) Product Manual, August 1995 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. 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 and 4 bytes of ECC.
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 diagnostic programs test ECC features by creating small data errors and then checking to see if they are reported.
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