Maxtor 52049U4, 51024U2, 51536U3, 53073U6, 54098U8 Pin Description Table, AT Interface Description

Page 26

AT INTERFACE DESCRIPTION

Pin Description Table

PIN NAME

PIN

I/O

SIGNAL NAME

SIGNAL DESCRIPTION

 

 

 

 

 

RESET -

01

I

Host Reset

Reset signal from the host system. Active during power up and inactive after.

 

 

 

 

 

DD0

17

I/O

Host Data Bus

16 bit bi-directional data bus between host and drive. Lower 8 bits used for register

 

 

 

 

and ECC byte transfers. All 16 bits used for data transfers.

 

 

 

 

 

DD1

15

I/O

 

 

 

 

 

 

 

DD2

13

I/O

 

 

 

 

 

 

 

DD3

11

I/O

 

 

 

 

 

 

 

DD4

09

I/O

 

 

 

 

 

 

 

DD5

07

I/O

 

 

 

 

 

 

 

DD6

05

I/O

 

 

 

 

 

 

 

DD7

03

I/O

 

 

 

 

 

 

 

DD8

04

I/O

 

 

 

 

 

 

 

DD9

06

I/O

 

 

 

 

 

 

 

DD10

08

I/O

 

 

 

 

 

 

 

DD11

10

I/O

 

 

 

 

 

 

 

DD12

12

I/O

 

 

 

 

 

 

 

DD13

14

I/O

 

 

 

 

 

 

 

DD14

16

I/O

 

 

 

 

 

 

 

DD15

18

I/O

 

 

 

 

 

 

 

DMARQ

21

O

DMA Request

This signal is used with DMACK for DMA transfers. By asserting this signal, the

 

 

 

 

drive indicates that data is ready to be transfered to and from the host.

 

 

 

 

 

DIOW -

23

I

Host I/O Write

Rising edge of Write strobe clocks data from the host data bus to a register on the

STOP

 

 

 

drive.

 

 

 

 

 

DIOR -

25

I

Host I/O Read

Read strobe enables data from a register on the drive onto the host data bus.

HDMARDY

 

 

 

DMA ready during UltraDMA data in bursts.

 

 

 

 

Data strobe during UltraDMA data out bursts.

HSTROBE

 

 

 

 

 

 

 

 

 

IORDY

27

O

I/O Channel Ready

This signal may be driven low by the drive to insert wait states into host I/O cycles.

DDMARDY

 

 

 

DMA ready during UltraDMA data out bursts.

-

 

 

 

Data strobe during UltraDMA data in bursts.

DSTROBE

 

 

 

 

 

 

 

 

 

CSEL

28

 

Cable Select

Used for Master/Slave selection via cable. Requires special cabling on host system

 

 

 

 

and installation of Cable Select jumper.

 

 

 

 

 

DMACK -

29

I

DMA Acknowledge

This signal is used with DMARQ for DMA transfers. By asserting this signal, the

 

 

 

 

host is acknowledging the receipt of data or is indicating that data is available.

 

 

 

 

 

INTRQ

31

O

Host Interrupt

Interrupt to the host asserted when the drive requires attention from the host.

 

 

 

Request

 

 

 

 

 

 

IOCS16

32

 

Device 16 bit I/O

Obsolete

 

 

 

 

 

PDIAG -

34

I/O

Passed Diagnostic

Output by drive when in Slave mode; Input to drive when in Master mode.

 

 

 

 

 

DA0

35

I

Host Address Bus

3 bit binary address from the host to select a register in the drive.

 

 

 

 

 

DA1

33

I

 

 

 

 

 

 

 

DA2

36

I

 

 

 

 

 

 

 

CS0 -

37

I

Host Chip Select 0

Chip select from the host used to access the Command Block registers in the drive.

 

 

 

 

This signal is a decode of I/O addresses 1F0 - 1F7 hex.

 

 

 

 

 

CS1 -

38

I

Host Chip Select 1

Chip select from the host used to access the Control registers in the drive. This

 

 

 

 

signal is a decode of I/O addresses 3F6 - 3F7 hex.

 

 

 

 

 

DASP -

39

I/O

Drive Active/Drive 1

Time-multiplexed, open collector output which indicates that a drive is active, or that

 

 

 

Present

device 1 is present.

 

 

 

 

 

GND

02

N/A

Ground

Signal ground.

 

 

 

 

 

 

19

 

 

 

 

 

 

 

 

 

22

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

26

 

 

 

 

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

KEY

20

N/A

Key

Pin used for keying the interface connector.

 

 

 

 

 

5 – 2

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Page 25 Page 27
Contents DiamondMax Plus Before You Begin U T I O NContents Diamondmax Plus 40 Product Manual Product SpecificationsHandling and Installation Host Software Interface Interface CommandsAT Interface Description Service and Support GlossaryFigures ManualOrganization IntroductionMaxtorCorporation AbbreviationsConventions Diamondmax Plus 40 IntroductionDiamondMax Plus 40 Key Features Product DescriptionModel CYL SPT Product FeaturesFunctional / Interface MAX LBA CapacityCacheManagement MajorHDAComponents Jumper Configuration SubsystemConfigurationJumper Location / Configuration CylinderLimitationJumperDescriptionPerformanceSpecifications ProductSpecificationsDriveConfiguration ModelsandCapacitiesPhysicalDimensionsmaximum Product SpecificationsEPA Energy Star Compliance PowerRequirementsPowerModeDefinitions EnvironmentalLimitsParameter Operating NON-OPERATING ReliabilitySpecificationsShock and Vibration SafetyRegulatoryCompliance EMC/EMIElectro-StaticDischargeESD HandlingandInstallationHardDriveHandlingPrecautions Installation UnpackingandInspectionPhysicalInstallation RepackingBefore You Begin Hook upSet up Start upATInterfaceDescription InterfaceConnectorPIN Signal PinDescriptionSummaryAT Interface Description PIN Name Signal Name Signal DescriptionPin Description Table Timing Parameters Mode PIO TimingTiming Parameters Mode 0 Mode 1 Mode DMATimingMode MIN MAX Ultra DMA TimingSustained 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 Port Read Write HostSoftwareInterfaceTask File Registers Abrt TK0 AmnfHost Software Interface Contents LBA BitsBusy Drdy DSC DRQ ERR LBA DRV HS3 HS2 HS1 HS0CommandRegister Summary Command Name Command Code Parameters UsedTimer Value TIME-OUT Period SDHDS0 Control Diagnostic RegistersIEN Reset and Interrupt Handling InterfaceCommands ReadCommands Interface CommandsRead DMA WriteCommands Write Multiple SetFeatureCommands Value DescriptionPowerModeCommands Timer Value TIME-OUT Period InitializationCommands Word Content Description15-8 = PIO data transfer mode Interface Commands Word Content Description Initialize Drive Parameters Seek,FormatandDiagnosticCommands Error Code DescriptionA.R.T. CommandSet Key RegisterNoQuibble Service ServiceandSupportServicePolicy SupportService and Support From DialGlossary Directmemoryaccess CorrectableerrorDirectaccess ErrorcorrectioncodeeccExtrapulse HarderrorHeaddiskassemblyhda FeedbackLatebit PhaselockedlooppllLandingzoneorlzone LatewindowReadgatesignal PhasemarginRandomaccessmemoryram RecoverableerrorUN-CORRECTABLEERROR SofterrorStrobeoffsetsignal Unrecoverableerror

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.
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