Reset and Interrupt Handling

HOST SOFTWARE INTERFACE

Reset Handling

One of three different conditions may cause a reset: power on, hardware reset or software reset. All three cause the interface processor to initialize itself and the Task File registers of the interface. A reset also causes a set of the Busy bit in the Status register. The Busy bit does not clear until the reset clears and the drive completes initialization. Completion of a reset operation does not generate a host interrupt.

Task File registers are initialized as follows:

Error		1
Sector	Count	1
Sector	Number	1
Cylinder Low		0
Cylinder High		0
Drive/Head		0

Interrupt Handling

The drive requests data transfers to and from the host by asserting its IRQ 14 signal. This signal interrupts the host if enabled by bit 1 (IRQ enable) of the Fixed Disk Control register.

Clear this interrupt by reading the Status register, writing the Command register, or by executing a host hardware or software reset.

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Maxtor 51024U2, 52049U4, 51536U3, 53073U6, 54098U8 specifications Reset and Interrupt Handling

51536U3, 53073U6, 52049U4, 54098U8, 51024U2 specifications

The Maxtor 51024U2, 53073U6, 51536U3, 52049U4, and 54098U8 are part of the celebrated Maxtor family of external hard drives, known for their reliability, performance, and technology innovations. These drives cater to various data storage needs, from casual home use to more demanding business applications.

One of the hallmark features of these Maxtor models is their USB connectivity, ensuring compatibility with a wide range of devices. The USB 2.0 interface facilitates data transfer speeds of up to 480 Mbps, while the newer models, like the 54098U8, may also offer USB 3.0 connectivity, enhancing speeds dramatically for compatible devices. This means quicker backups and more efficient file transfers, making it easier for users to manage their digital assets.

In terms of storage capacity, these models vary considerably, accommodating users with diverse needs. The Maxtor 51024U2 features a compact size suitable for portability, perfect for users who need to carry their data on the go. Conversely, the 53073U6 is designed for larger storage requirements, making it suitable for multimedia professionals who handle large files regularly.

Durability is another prominent aspect, with these drives often featuring robust casing to protect against physical damage. Features such as shock resistance help safeguard data during travel, while advanced cooling technologies prevent overheating during use, thereby prolonging the lifespan of the device.

Data management features are also integrated into these Maxtor drives. Users can benefit from bundled software that facilitates backup scheduling, file encryption, and disk management. This software adds an additional layer of security and control over personal data, ensuring that users can easily access their files while maintaining their privacy.

The Maxtor drives prioritize user-friendliness with plug-and-play functionality, which means users can plug the drive into their computer and start using it almost immediately without needing extensive setup procedures. This ease of use ensures that even those who are not tech-savvy can utilize these devices effectively.

In conclusion, the Maxtor 51024U2, 53073U6, 51536U3, 52049U4, and 54098U8 external hard drives are formidable choices for anyone in need of reliable storage solutions. With their impressive features, robust design, and advanced technology, these drives securely meet the demands of various users, making them a staple in data storage technology.

Contents

DiamondMax Plus Before You Begin U T I O N Contents Handling and Installation Product SpecificationsDiamondmax Plus 40 Product Manual AT Interface Description Interface CommandsHost Software Interface Service and Support Glossary Figures Introduction MaxtorCorporationManualOrganization Abbreviations Conventions Diamondmax Plus 40 Introduction DiamondMax Plus 40 Key Features Product Description Product Features Functional / InterfaceModel CYL SPT MAX LBA Capacity CacheManagement MajorHDAComponents SubsystemConfiguration Jumper Location / ConfigurationJumper Configuration CylinderLimitationJumperDescription ProductSpecifications DriveConfigurationPerformanceSpecifications ModelsandCapacities PhysicalDimensionsmaximum Product Specifications PowerRequirements PowerModeDefinitionsEPA Energy Star Compliance EnvironmentalLimits Shock and Vibration ReliabilitySpecificationsParameter Operating NON-OPERATING SafetyRegulatoryCompliance EMC/EMI HardDriveHandlingPrecautions HandlingandInstallationElectro-StaticDischargeESD Installation UnpackingandInspection PhysicalInstallation Repacking Before You Begin Hook up Set up Start up InterfaceConnector PIN SignalATInterfaceDescription PinDescriptionSummary Pin Description Table PIN Name Signal Name Signal DescriptionAT Interface Description Timing Parameters Mode PIO Timing Timing Parameters Mode 0 Mode 1 Mode DMATiming Mode MIN MAX Ultra DMA Timing Sustained Ultra DMA Data In Burst Device Terminating an Ultra DMA Data In Burst Initiating an Ultra DMA Data Out Burst Device Pausing an Ultra DMA Data Out Burst Device Terminating an Ultra DMA Data Out Burst HostSoftwareInterface Task File RegistersPort Read Write Abrt TK0 Amnf Contents LBA Bits Busy Drdy DSC DRQ ERRHost Software Interface LBA DRV HS3 HS2 HS1 HS0 CommandRegister Command Name Command Code Parameters Used Timer Value TIME-OUT PeriodSummary SDH IEN Control Diagnostic RegistersDS0 Reset and Interrupt Handling InterfaceCommands ReadCommands Interface Commands Read DMA WriteCommands Write Multiple SetFeatureCommands Value Description PowerModeCommands Timer Value TIME-OUT Period InitializationCommands Word Content Description 15-8 = PIO data transfer mode Interface Commands Word Content Description Initialize Drive Parameters Seek,FormatandDiagnosticCommands Error Code Description A.R.T. CommandSet Key Register ServiceandSupport ServicePolicyNoQuibble Service Support Service and Support From Dial Glossary Correctableerror DirectaccessDirectmemoryaccess Errorcorrectioncodeecc Harderror HeaddiskassemblyhdaExtrapulse Feedback Phaselockedlooppll LandingzoneorlzoneLatebit Latewindow Phasemargin RandomaccessmemoryramReadgatesignal Recoverableerror Softerror StrobeoffsetsignalUN-CORRECTABLEERROR Unrecoverableerror