Seagate ST760211DE manual Set Features command, Features register values, Feature Description

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4.2.2Set Features command

This command is used by the host to establish parameters that affect the execution of certain drive features. The supported features determined by the value in the Features register are as shown in Table 11. Read look- ahead and write cache are enabled by default upon power on.

Table 10:

Features register values

 

Feature

Description

 

 

 

 

02h

Enable Write Cache

 

 

 

 

03h

Set DMA and PIO transfer modes based on the value in the Sector Count register.

 

 

Sector Count register values

 

 

08h: Set PIO Transfer Mode 0

 

 

09h: Set PIO Transfer Mode 1

 

 

0Ah: Set PIO Transfer Mode 2

 

 

0Bh: Set PIO Transfer Mode 3

 

 

0Ch: Set PIO Transfer Mode 4

 

 

20h: Set Multiword Transfer Mode 0.

 

 

21h: Set Multiword Transfer Mode 1.

 

 

22h: Set Multiword Transfer Mode 2.

 

 

40h: Set Ultra DMA mode 0.

 

 

41h: Set Ultra DMA mode 1.

 

 

42h: Set Ultra DMA mode 2.

 

 

44h: Set Ultra DMA mode 4.

 

 

 

 

05h

Enable Advanced Power Management (APM) with APM level as in the Sector Count register .

 

 

Sector Count register values

 

 

0h : Reserved

 

 

1h – 7Fh : Allow Spin-Down (Standby Mode)

 

 

80h – FEh : Disallow Spin-Down (Low Power Idle Mode)

 

 

FFh : Reserved

 

 

 

 

55h

Disable Read Look-Ahead.

 

 

 

 

82h

Disable Write Cache.

 

 

 

 

85h

Disable Advanced Power Management (APM)

 

 

 

 

AAh

Enable Read Look-Ahead .

 

 

 

Lyrion Series IDE Product Manual, Rev. E

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Contents ST760211DE ST730212DE Lyrion Series IDERevision Date Revision historyContents Lyrion Series IDE Product Manual, Rev. E List of Figures Lyrion Series IDE Product Manual, Rev. E Lyrion Series IDE interface disc drive IntroductionDrive care DisclaimerOverview Drive specificationsSpecifications Drive specification ST760211DE ST730212DEModel Cylinders Heads Sectors Default logical geometryLBA mode addressing Formatted capacityTime to ready Physical characteristicsTechnology Specification Recording and interface technologyPower specifications Typical current profile DC powerPower Consumption at Average W Voltage tolerance Voltage tolerance including noise Conducted noisePower modes Heads Spindle Buffer Power-management modesActive mode Standby/Sleep modeEnvironmental specifications Vibration ShockOperating shock Nonoperating shockNonoperating sweep sine vibration Operating sweep sine vibrationOperating random vibration Operating random vibration profileCorrosive environment Nonoperating random vibrationNonoperating random vibration profile Electromagnetic immunity AcousticsElectromagnetic immunity Drive level acousticsReliability Measurement type SpecificationKorean RRL Safety certificationAgency certification Electromagnetic compatibilityFCC verification China Restriction of Hazardous Substances RoHS DirectivePage Handling and static discharge precautions Configuring and mounting the drivePage Lyrion Series mechanical dimensions-top, side and end view Drive installationMounting considerations Lyrion Series FPC dimensionsInterface description Connector interface signals and connector pinsWay ZIF IDE interface connector signals Iordy Command Name Command Op-Code Command Type Supported ATA commandsSupported commands Supported commands Word ATA specification Value Identify Device commandLyrion Series IDE Product Manual, Rev. E Feature Description Set Features commandFeatures register values Lyrion Series IDE Product Manual, Rev. E Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Publication feedback survey Lyrion Series IDE Product Manual, Rev. E Index Page Page Seagate Technology LLC
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