Maxtor 6800 manual Initialization Commands, Identify Drive

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INTERFACE COMMANDS

Initialization Commands

Identify Drive

Allows the host to receive parameter information from the drive.

When the command is received, the drive:

1.Sets BSY,

2.Stores the required parameter information in the sector buffer,

3.Sets the DRQ bit and

4.Generates an interrupt.

The host may then read the information out of the sector buffer. Parameter words in the buffer follow. Note that all reserved bits or words should be zeroes.

WORD	CONTENT DESCRIPTION
0	General configuration
	15 = device (0 = ATA, 1 = ATAPI)
	14-8 = not used
	7, 1 = removable media data
	6, 1 = not removable controller and/or device
	5-1 = reserved
	0
1	Number of cylinders
2	Reserved
3	Number of logical heads
4-5	Not used
6	Number of logical sectors per track
7-9	Not used
10 - 19	Drive serial number (40 ASCII characters)
20	Not used
21	Buffer size in 512 byte increments (0000h = not specified)
22	Number of Maxtor specific bytes available on Read/Write Long commands
23 - 26	Firmware revision (8 ASCII characters)
27 - 46	Model number (40 ASCII characters)
47	Maximum number of sectors that can be transferred per interrupt on read and write multiple commands
48	Reserved
49	Capabilities
	15 - 14 = reserved
	13 = standby timer (1 = values as specified in this standard are supported, 0 = values are Maxtor specific)
	12 = reserved (advanced PIO mode support)
	11, 1 = IORDY supported, 0 = IORDY may be supported
	10, 1 = IORDY can be disabled
	9-8 = reserved
	7-0 = not used

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Contents HA RD Drive Produc T MA Nual DiamondMax Before You Begin U T I O NContents Product Specifications Handling and InstallationAT Interface Description Host Software InterfaceGlossary Interface CommandsService and Support Figures Introduction Maxtor CorporationManual Organization AbbreviationsSignal Conventions ConventionsKey Words NumberingDiamondMax 6800 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 Power Mode DefinitionsEPA Energy Star Compliance Environmental LimitsReliability Specifications Shock and VibrationCanadian Emissions Statement Safety Regulatory ComplianceRadiated Electromagnetic Field Emissions EMC Compliance Handling and Installation Hard Drive Handling PrecautionsPre-formatted Drive Important NoticeUnpacking and Inspection Multi-pack Shipping ContainerRepacking Physical InstallationRecommended Mounting Configuration Handling Precautions Tools for InstallationSystem Requirements Drive Identification InformationGeneral Requirements Hard Drive IdentificationSystems Using Cable Select Installing 5.25-inch Mounting Brackets and RailsInstalling in a Device Bay Mounting Drive in SystemAttaching Interface and Power Cables Attaching System CablesBios Cmos Parameters System SetupSetting the Bios Cmos Hard Drive Preparation System Hangs During Boot Pin Description Summary Interface ConnectorAT Interface Description PIN 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 SDH SummaryControl Diagnostic Registers Alternate Status RegisterDevice Control Register Digital Input RegisterInterrupt Handling Reset and Interrupt HandlingReset Handling Interface Commands Set Feature CommandsRead Verify Sectors Read CommandsRead Sectors Read DMA Read MultipleWrite Commands Set Multiple ModeWrite Sectors Write Verify SectorsWrite Multiple Write DMASet Feature Commands Set Features ModePower Mode Commands Sleep Mode Initialization Commands Identify Drive15-8 = PIO data transfer mode = Write Cache enabled Initialize Drive Parameters Format Track Seek, Format and Diagnostic CommandsExecute Drive Diagnostic A.R.T. Command Set Execute S.M.A.R.TService and Support Service PolicyNo Quibble Service SupportInternet MaxFax ServiceCustomer Service Access Time GlossaryCylinder Zero Gigabyte GB Logical Block Addressing Read Gate Signal THIN-FILM Media