Maxtor 4320 manual Ultra DMA Timing, Mode MIN MAX

Page 37

AT INTERFACE DESCRIPTION

Ultra DMA Timing

TIMING PARAMETERS (all times in nanoseconds)

MODE 0

MODE 1

MODE 2

 

 

 

 

 

 

 

 

 

 

MIN

MAX

MIN

MAX

MIN

MAX

 

 

 

 

 

 

 

 

tCYC

Cycle Time (from STROBE edge to STROBE edge)

114

 

75

 

55

 

t2CYC

Two cycle time (from rising edge to next rising edge or

235

 

156

 

117

 

 

from falling edge to next falling edge of STROBE)

 

 

 

 

 

 

tDS

Data setup time (at recipient)

15

 

10

 

7

70

tDH

Data hold time (at recipient)

5

 

5

 

5

 

tDVS

Data valid setup time at sender (time from data bus being

70

 

48

 

34

5

 

valid until STROBE edge)

 

 

 

 

 

 

tDVH

Data valid hold time at sender (time from STROBE edge

6

 

6

 

6

20

 

until data may go invalid)

 

 

 

 

 

 

tFS

First STROBE (time for device to send first STROBE)

0

230

0

200

0

170

tLI

Limited interlock time (time allowed between an action by

0

150

0

150

0

150

 

one agent, either host or device, and the following action

 

by the other agent)

 

 

 

 

 

 

tMLI

Interlock time with minimum

20

 

20

 

20

 

tUI

Unlimited interlock time

0

 

0

 

0

 

tAZ

Maximum time allowed for outputs to release

 

10

 

10

 

10

tZAH

Minimum delay time required for output drivers turning on

20

 

20

 

20

 

tZAD

(from released state)

0

 

0

 

0

 

 

 

 

 

tENV

Envelope time (all control signal transitions are within the

20

70

20

70

20

70

 

DMACK envelope by this much time)

 

 

 

 

 

 

tSR

STROBE to DMARDY (response time to ensure the

 

50

 

30

 

20

 

synchronous pause case when the recipient is pausing)

 

 

 

 

 

 

tRFS

Ready-to-final-STROBE time (no more STROBE edges may

 

75

 

60

 

50

 

be sent this long after receiving DMARDY- negation)

 

 

 

 

 

 

tRP

Ready-to-pause time (time until a recipient may assume

160

 

125

 

100

 

 

that the sender has paused after negation of DMARDY-)

 

 

 

 

 

 

tIORDYZ

Pull-up time before allowing IORDY to be released

 

20

 

20

 

20

tZIORDY

Minimum time device shall wait before driving IORDY

0

 

0

 

0

 

tACK

Setup and hold times before assertion and negation of

20

 

20

 

20

 

 

DMACK-

 

 

 

 

 

 

tSS

Time from STROBE edge to STOP assertion when the

50

 

50

 

50

 

 

sender is stopping

 

 

 

 

 

 

DMARQ

 

(device)

 

tUI

 

DMACK-

 

(host)

 

tACK

tENV

STOP

 

(host)

 

tACK

tENV

HDMARDY-

 

(host)

 

tZIORDY

 

DSTROBE

 

(device)

 

tAZ

 

DD(15:0)

 

tACK

 

DA0, DA1, DA2,

 

CS0-, CS1-

 

tFS

tZAD

 

tFS

 

tZAD

 

tVDS

tDVH

Figure 5 - 4

Initiating an Ultra DMA Data In Burst

5 – 5

Image 37
Contents HA RD Drive Produc T MA Nual DiamondMax Revisions Manual No U T I O N Before You BeginContents Handling and Installation Product SpecificationsHost Software Interface AT Interface DescriptionService and Support Interface CommandsGlossary Figures Maxtor Corporation IntroductionManual Organization AbbreviationsConventions Signal ConventionsKey Words NumberingProduct Description DiamondMax 4320 Key FeaturesFunctional / Interface Product FeaturesLogical Block Addressing On-the-Fly Hardware Error Correction Code ECCDefect Management Zone DMZ Software ECC CorrectionCache Management Read-Ahead ModeBuffer Segmentation Automatic Write Reallocation AWRMajor HDA Components Jumper Location/Configuration Subsystem ConfigurationCylinder Limitation Dual Drive SupportDrive Configuration Product SpecificationsPerformance Specifications Models and CapacitiesParameter Standard Metric Physical DimensionsPower Mode Definitions Power Requirements AverageEPA Energy Star Compliance Environmental LimitsShock and Vibration Reliability SpecificationsRadiated Electromagnetic Field Emissions EMC Compliance Safety Regulatory ComplianceCanadian Emissions Statement Hard Drive Handling Precautions Handling and InstallationPre-formatted Drive Important NoticeMulti-pack Shipping Container Unpacking and InspectionRecommended Mounting Configuration Physical InstallationRepacking Before You Begin General Requirements Mounting Drive in System Attaching Interface Power Cables System Setup Hard Drive Preparation System Hangs During Boot AT Interface Description Interface ConnectorPin Description Summary PINPin Description Table PIN Name Signal Name Signal DescriptionPIO Timing Timing Parameters ModeDMA Timing Ultra DMA Timing Mode MIN MAXSustained 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 Features Register Error RegisterHost Software Interface Task File RegistersSector Number Register Sector Count RegisterCylinder Number Registers Device/Head RegisterCommand Register Timer Value TIME-OUT Period Command Name Command Code Parameters UsedSummary Alternate Status Register Control Diagnostic RegistersDevice Control Register Digital Input RegisterReset Handling Reset and Interrupt HandlingInterrupt Handling Set Feature Commands Interface CommandsRead Sectors Read CommandsRead Verify Sectors Read Multiple Read DMASet Multiple Mode Write CommandsWrite Sectors Write Verify SectorsWrite DMA Write MultipleSet Features Mode Set Feature CommandsValue Description Power Mode Commands Sleep Mode Word Content Description Initialization CommandsIdentify Drive 15-8 = PIO data transfer mode = Write Cache enabled Initialize Drive Parameters Execute Drive Diagnostic Seek, Format and Diagnostic CommandsError Code Description Format TrackExecute S.M.A.R.T A.R.T. Command SetService Policy Service and SupportNo Quibble Service SupportCustomer Service MaxFax ServiceInternet Glossary Access TimeCylinder 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.