IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications Brandname: IBM Category: Storage Total Pages: 220 Table of contents TableofContents5Figures1110Introduction1512References1720GeneralFeatures1931ControlElectronics2342FormattedCapacity2543DataSheet2644CylinderAllocation2750DataIntegrity3554WriteSafety36583760Specification3962DcPowerRequirements41634364Reliability4566VibrationAndShock5167Acoustics5468IdentificationLabels56610Safety5771Cabling5973SignalDefinitions60746276ResetTimings6577PioTimings66786779UltraDmaTimings68710DriveAddressSetting7680General81100Registers85102CommandRegister86105DataRegister87107DeviceheadRegister88108ErrorRegister891012StatusRegister90111ResetResponse91