Maxtor 4320 manual DMA Timing

Page 36

AT INTERFACE DESCRIPTION

DMA Timing

TIMING PARAMETERS

MODE 0

MODE 1

MODE 2

Cycle Time (min)

480 ns

150 ns

120 ns

DMACK to DMARQ delay

DIOR-/DIOW- (min)

215 ns

80 ns

70 ns

DIOR- data access (min)

150 ns

60 ns

DIOR- data hold (min)

5 ns

DIOR-/DIOW- data setup (min)

100 ns

30 ns

20 ns

DIOW- data hold (min)

20 ns

15 ns

10 ns

DMACK to DIOR-/DIOW- setup (min)

DIOR-/DIOW- to DMACK hold (min)

20 ns

5 ns

tKr

DIOR- negated pulse width (min)

50 ns

25 ns

tKw

DIOW- negated pulse width (min)

215 ns

50 ns

25 ns

tLr

DIOR- to DMARQ delay (max)

120 ns

40 ns

35 ns

tLw

DIOW- to DMARQ delay (max)

40 ns

35 ns

DMACK- to tristate (max)

20 ns

25 ns

Figure 5 - 3

Multi-word DMA Data Transfer

5 – 4

Image 36

Contents HA RD Drive Produc T MA Nual DiamondMax Revisions Manual No Before You Begin U T I O NContents Product Specifications Handling and InstallationAT Interface Description Host Software InterfaceInterface Commands Service and SupportGlossary Figures Introduction Maxtor CorporationManual Organization AbbreviationsSignal Conventions ConventionsKey Words NumberingDiamondMax 4320 Key Features Product DescriptionProduct Features Functional / InterfaceOn-the-Fly Hardware Error Correction Code ECC Logical Block AddressingDefect Management Zone DMZ Software ECC CorrectionRead-Ahead Mode Cache ManagementBuffer Segmentation Automatic Write Reallocation AWRMajor HDA Components Subsystem Configuration Jumper Location/ConfigurationCylinder Limitation Dual Drive SupportProduct Specifications Drive ConfigurationPerformance Specifications Models and CapacitiesPhysical Dimensions Parameter Standard MetricPower Requirements Average Power Mode DefinitionsEPA Energy Star Compliance Environmental LimitsReliability Specifications Shock and VibrationSafety Regulatory Compliance Radiated Electromagnetic Field Emissions EMC ComplianceCanadian Emissions Statement Handling and Installation Hard Drive Handling PrecautionsPre-formatted Drive Important NoticeUnpacking and Inspection Multi-pack Shipping ContainerPhysical Installation Recommended Mounting ConfigurationRepacking Before You Begin General Requirements Mounting Drive in System Attaching Interface Power Cables System Setup Hard Drive Preparation System Hangs During Boot Interface Connector AT Interface DescriptionPin Description Summary PINPIN Name Signal Name Signal Description Pin Description TableTiming Parameters Mode PIO TimingDMA Timing Mode 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 Error Register Features RegisterHost Software Interface Task File RegistersSector Count Register Sector Number RegisterCylinder Number Registers Device/Head RegisterCommand Register Command Name Command Code Parameters Used Timer Value TIME-OUT PeriodSummary Control Diagnostic Registers Alternate Status RegisterDevice Control Register Digital Input RegisterReset and Interrupt Handling Reset HandlingInterrupt Handling Interface Commands Set Feature CommandsRead Commands Read SectorsRead Verify Sectors Read DMA Read MultipleWrite Commands Set Multiple ModeWrite Sectors Write Verify SectorsWrite Multiple Write DMASet Feature Commands Set Features ModeValue Description Power Mode Commands Sleep Mode Initialization Commands Word Content DescriptionIdentify Drive 15-8 = PIO data transfer mode = Write Cache enabled Initialize Drive Parameters Seek, Format and Diagnostic Commands Execute Drive DiagnosticError Code Description Format TrackA.R.T. Command Set Execute S.M.A.R.TService and Support Service PolicyNo Quibble Service SupportMaxFax Service Customer ServiceInternet Access Time GlossaryCylinder Zero Gigabyte GB Logical Block Addressing Read Gate Signal THIN-FILM Media

4320 specifications

The Maxtor 4320 is a notable entry in the realm of hard disk drives, widely recognized for its reliability and performance in data storage. Released in the early 2000s, it quickly gained traction among both consumers and professionals looking for efficient solutions for their data management needs.

At the core of the Maxtor 4320 is its impressive storage capacity. With a capacity of 20GB, it was considered substantial at the time, making it ideal for storing a variety of files, from documents to multimedia content. This drive provided users with ample space to expand their digital footprint without the constant worry of running out of space.

One of the standout features of the Maxtor 4320 is its data transfer rate. Operating at a speed of 5400 RPM, it offered a balanced performance that suited casual users and most business applications. The drive utilized an IDE interface, ensuring compatibility with a wide range of motherboards and systems, allowing for easy integration into both desktop and laptop computers.

The Maxtor 4320 is characterized by its durability. Engineered with robust materials and a well-designed casing, it was built to withstand regular use. This durability became a significant selling point, as data integrity and safety are paramount in any storage solution. Users could rely on the Maxtor 4320 to protect their important data against the wear and tear associated with daily operations.

In terms of technologies, the Maxtor 4320 featured advanced error correction algorithms, which ensured that data retrieval was not only fast but also reliable. This was particularly important at a time when data integrity was becoming increasingly crucial for personal and corporate users alike.

Additionally, the drive's low power consumption was a key consideration for eco-conscious consumers. It allowed for extended use without excessively draining power, contributing to lower energy bills and a smaller carbon footprint. This feature made the Maxtor 4320 an attractive option for users looking to balance performance with energy efficiency.

In conclusion, the Maxtor 4320 combined reliability, performance, and durability to become a popular choice in the hard disk drive market of the early 2000s. Its large storage capacity, reasonable speed, and energy efficiency catered to a wide range of users, from home consumers to small businesses. The legacy of the Maxtor 4320 continues to influence current storage solutions as it laid the groundwork for advancements in hard disk technology.