SEAGATE 810 - Manual

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 configurat...

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 . . . . . . ...

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 c...

Specification summary table The specifications listed in this table are for quick reference. For detailson specification measurement or definition, see the appropriate sectionof this manual. Drive Specification ST9816AG Guaranteed Capacity ( × 10 6 bytes) 810 Guaranteed sectors 1,583,568 Bytes per s...

1.0 Drive specifications Unless otherwise noted, all specifications are measured under ambientconditions, at 25°C, at sea level, and nominal power. 1.1 Formatted capacity ST9816AG Guaranteed Mbytes(1 Mbyte = 10 6 bytes) 810.7 Guaranteed sectors 1,583,568 Bytes per sector 512 1.1.1 Default logical ge...

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) 3,807 Areal density (Mbits/inch 2 ) 342 Spindle speed (RPM)( ± 0.5%) 4,500 Internal data-transfer rate(Mbits per sec...

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 powerat sea level and 25°C ambient temperature. The specifications in thetable below are defined as follows: • Track-to-track seek time is an average of...

level. Active mode current and power are measured with a 32-msec delaybetween each 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 headson track, based on a 16-sect...

1.7.2 Power recovery Except during execution of a write command, the drive’s power can beinterrupted without adversely affecting the drive or previously writtendata. If power is removed while the drive is performing a write operation,the integrity of the data being written cannot be guaranteed. 1.7....

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 ...

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. Referto publication number 004-000-00345-4. 14 Marathon 810 (ST9816AG) Product Manual, August 1995

2.0 Drive mounting and configuration 2.1 Handling and static-discharge precautions After unpacking, and before installation, the drive may be exposed topotential handling and ESD hazards. It is mandatory that you observestandard static-discharge precautions. A grounded wrist-strap is pre-ferred. Han...

Jumperfor pinsA and B Jumperfor pins C and D 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 ...

2.5 ATA interface connector The drive connector is a 44-conductor connector with 2 rows of 22 malepins on 0.079-inch (2-mm) centers (see Figures 4 and 5). The matingcable connector is a 44-conductor, nonshielded connector with 2 rowsof 22 female contacts on 0.079-inch (2-mm) centers. The connectorss...

3.0 ATA interface The ST9816AG uses the industry-standard ATA interface. It supportsboth 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 modes0, 1 and 2, and ATA multiword DMA modes 0, 1 and 2. The drive alsosupports the use...

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 theATA commands, refer to the Draft Proposed ATA-2 Standard. Command name Command code Supported by ST9816AG A...

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 EC H ) transfers information about the drive to the host after power up. The data is organized as asingle 512-byte ...

3.2.3 Set Features command This command controls the implementation of various features that thedrive supports. When the drive receives this command, it sets BSY,checks the contents of the Features register, clears BSY and generatesan interrupt. If the value in the register does not represent a feat...

Appendix. Compatibility notes ECC testingWhen an ST9816AG performs hardware-based ECC error correctionon-the-fly, the drive does not report an ECC error. This allows ECCcorrection without degrading drive performance. Some older drive diag-nostic programs test ECC features by creating small data erro...