Seagate 810 manual ATA Interface commands Supported ATA commands, Nop

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Marathon 810 (ST9816AG) Product Manual, August 1995	23

3.2 ATA Interface commands

3.2.1Supported ATA commands

The following table lists ATA-standard and Seagate-specific drive com- mands that the ST9816AG supports. For a detailed description of the ATA commands, refer to the Draft Proposed ATA-2 Standard.

	Command		Supported by
Command name	code		ST9816AG

ATA-standard commands

Execute Drive Diagnostics	90H		Yes

Format Track	50H		Yes

Identify Drive	ECH		Yes

Initialize Drive Parameters	91H		Yes

NOP	00H		No

Read Buffer	E4H		Yes

Read DMA (w/retry)	C8H		Yes

Read DMA (no retry)	C9H		Yes

Read Long (w/retry)	22H		Yes

Read Long (no retry)	23H		Yes

Read Multiple	C4H		Yes

Read Sectors (w/retry)	20H		Yes

Read Sectors (no retry)	21H		Yes

Read Verify Sectors (w/retry)	40H		Yes

Read Verify Sectors (no retry)	41H		Yes

Recalibrate	1xH		Yes

Seek	7xH		Yes

Set Features	EFH		Yes

Set Multiple Mode	C6H		Yes

Write Buffer	E8H		Yes

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Contents Marathon ATA Interface Drive Page Marathon 810 ST9816AG ATA Interface Drive Page Contents ATA interface Drive mounting and configurationAppendix. Compatibility notes Figures Page Introduction Drive Specification ST9816AG Specification summary tableRead/Write power and current typical Page Supported translation geometries Drive specificationsDefault logical geometry Formatted capacityRecording and interface technology Physical dimensionsStartup times Power specificationsPower consumption Seek timeTypical current profile Typical watts RMS Typical amps RMS Mode At nominal voltageVoltage tolerance Power recoveryPower-management modes Conducted noiseTemperature gradient Environmental tolerances Ambient temperatureRelative humidity Nonoperating shock AltitudeShock Operating shockReliability Mode TypicalNonoperating vibration Drive acousticsFCC verification Agency certification Safety certificationMarathon 810 ST9816AG Product Manual, August Handling and static-discharge precautions Drive mounting and configurationJumper settings Master/slave configuration Connector and master/slave jumper setup for the ST9816AG Jumper For pins Configuration Remote LED configurationDrive mounting Mounting dimensions for the ST9816AG Dimensions are in inches mm ATA interface connectorPage AT bus signal levels ATA interface signals and connector pinsATA interface O pins and associated ATA signals supported by the ST9816AG NOP ATA Interface commands Supported ATA commandsATA-standard power-management commands Command Supported by Command name Code ST9816AGSeagate-specific commands Word Description ST9816AG Identify Drive commandXxxx H Word Bit Description if bit is set to Set Features command Appendix. Compatibility notes ECC testing