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General| Capacity | 250 GB |
|---|---|
| Form Factor | 3.5 inch |
| RPM | 7200 |
| Cache | 8 MB |
| Average Seek Time | 8.5 ms |
Describes the specifications of the Deskstar 7K250 hard disk drive and its ATA interface.
Defines abbreviations used in the document, covering technical terms and standards.
Provides essential safety precautions regarding handling the drive to prevent damage.
Details the microprocessor and logic modules controlling the drive's operations and interface.
Explains the actuator mechanism, voice coil motor, and positioning servo for head movement.
Details formatted capacities, physical layout, and logical drive parameters for different models.
Covers command overhead, mechanical positioning (seek times), data transfer speed, and operating modes.
Details jumper pin locations, identification, assignments, and positions for drive configuration.
Outlines input voltage specifications and typical power supply current consumption.
Provides physical dimensions, weight, mounting hole locations, and connector details.
Covers UL/CSA approval, German safety mark, flammability, safe handling, and environmental compliance.
Lists and defines the signals and their I/O types for the ATA interface.
Covers timing parameters for various Ultra DMA modes, including read and write operations.
Explains how registers are mapped and accessed via I/O space and chip select lines.
Lists specific deviations of the device's implementation from the ATA/ATAPI-6 standard.
Presents the I/O address map for Command Block and Control Block registers.
Explains the Error Register, containing status from last command or diagnostic codes.
Covers the Status Register, indicating device status like Busy, Ready, and Error.
Details the device's response to Power On, Hard, and Soft resets.
Explains Logical CHS and LBA addressing modes for accessing data sectors.
Explains Self-monitoring, Analysis, and Reporting Technology for device health and prediction.
Details the security features, including passwords, lock modes, and security levels.
Lists commands used for reading data from the device via Programmed I/O.
Explains DMA commands for high-speed data transfers, differing from PIO transfers.
Describes the Check Power Mode command, used to determine the device's power state.
Describes the Identify Device command for retrieving configuration information about the drive.
Explains the Security Set Password command to enable security features and set master or user passwords.
Details the Security Unlock command to unlock the device and enter device unlock mode.
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