Seagate ST380020ACE, ST320410ACE, ST340810ACE, ST360020ACE manual Set Features command

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U Series CE Family Product Manual, Rev. A

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3Ultra DMA mode 3 is supported.

4Ultra DMA mode 4 is supported.

5Ultra DMA mode 5 is supported.

8Ultra DMA mode 0 is currently active.

9Ultra DMA mode 1 is currently active.

10Ultra DMA mode 2 is currently active.

11Ultra DMA mode 3 is currently active.

12Ultra DMA mode 4 is currently active.

13Ultra DMA mode 5 is currently active.

Bit

Word 93

131 = 80-conductor cable detected, CBLID above VIH 0 = 40-conductor cable detected, CBLID below VIL

Bit

Word 94

0–7 Current AAM setting

8–15 AAM Power on default

3.1.3 Set Features command

This command controls the implementation of various features that the drive supports. When the drive receives this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on default has the read look-ahead and write caching features enabled. The acceptable values for the Features register are defined as follows:

02H	Enable write cache (default).
03H	Set transfer mode (based on value in Sector Count register).
	Sector Count register values:
	00H	Set PIO mode to default (PIO mode 2).
	01H	Set PIO mode to default and disable IORDY
		(PIO mode 2).
	08H	PIO mode 0

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Contents Series CE Family Page Series CE Family Page Contents ATA interface Configuring and mounting the driveFigures Series CE Family Product Manual, Rev. a Introduction Specification summary table Track-to-track seek Time msec typical Altitude meters be Low mean sea level LBA Mode Default logical geometryFormatted capacity Physical organization Physical characteristicsRecording and interface technology Start/stop times Seek timePower consumption Power specificationsTypical current profile Power Mode Typical Watts Typical Amps Means 12VConducted noise Power-management modesVoltage tolerance Temperature gradient Environmental tolerances Ambient temperatureSleep mode Idle and Standby timersHumidity 3.1 Relative Humidity 3.2 Wet bulb temperatureAltitude ShockNonoperating vibration Operating vibrationDrive acoustics Electromagnetic immunity Agency certification 1.12.1 Safety certificationReliability Taiwan Bsmi Electromagnetic compatibilityKorean RRL Australian C-Tick N176 FCC verificationHandling and static-discharge precautions Configuring and mounting the driveDrive as master with a non-ATA-compatible slave Jumper settings Master/slave configurationOptions jumper block Alternate capacity jumper Cable-select optionUltra ATA/100 cable Drive mounting Recommended Case temperature Measurement locationATA interface ATA interface signals and connector pinsO pins and supported ATA signals Command name Command code in hex ATA-standard commands Supported ATA commandsCommand name Identify Drive commandATA-standard power-management commands ATA-standard security commands0C5AH Word DescriptionXx07H Word Description ValueXx3FH Bit Word Description if bit is set to Bit WordSet Features command 0AH Code in Features A.R.T. Command Register 4 S.M.A.R.T. commandsSeries CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a Series CE Family Product Manual, Rev. a