Maxtor 2B010H1, 2B015H1, 2B020H1 manual ModeSet/CheckCommands, VAL UE DES C RIP Tion, Ec Tor Le Ve L

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INTERFACE COMMANDS

ModeSet/CheckCommands

Set Features Mode

Enables or disables features supported by the drive. When the drive receives this command it:

1.Sets BSY,

2.Checks the contents of the Features register,

3.Clears BSY and

4.Generates an interrupt.

If the value of the register is not a feature supported by the drive, the command is aborted. The acceptable values in the Features register are defined as follows:

VAL UE	DES C RIP TION

02h	Enabled Write Cache

03h	Set Transfer Mode based on value in Sector Count register

05h	Enable Advanced Power Management
42h	Enable Automatic Acoustic Management. The sector count register c ontains the
	Automatic Ac ous tic Management level.
	S EC TOR	LE VE L

	F Fh	Maxtor specific

	FEh	Maximum performance
	81h-FD h	Intermediate acoustic management levels

	80h	Minimum acoustic emanation level

	00h- 7Fh	reserved
44h	Length of data appended on Read Long/Write Long commands specified in the
	Identify D evice information
55h	Disable Read Look-ahead feature

66h	Disable reverting to Power-on defaults

82h	D isable Write Cache
85h	Disable Advanced Power Management

AAh	Enable Read Look-ahead feature
BBh	4 bytes of Maxtor specific data appended on Read Long/W rite Long commands

C2h	D isable Automatic Acoustic Management

CC h	Enable reverting to Power- on defaults

7 – 6

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Contents Maxtor 541DX Product Manual Before You Begin U T I O NContents Product Specifications Handling and InstallationAT Interface Description Interface CommandsHost Software Interface Service and Support GlossaryFigures ManualOrganization IntroductionMaxtorCorporation AbbreviationsConventions Key Features ProductDescriptionFunctional / Interface Product FeaturesModels CYL SP T MAX LBA Capacity CacheManagement Major HDA Components Jumper Configuration SubsystemConfigurationJumper Location / Configuration Cylinder Limitation Jumper DescriptionPerformanceSpecifications ProductSpecificationsDrive Configuration Models and CapacitiesPhysical Dimensions Param Eter Valu EEPA Energy Star Compliance PowerRequirementsPower Mode Definitions Environmental LimitsShock and Vibration Reliability SpecificationsParam Eter Oper AT ING ON- Oper AT ING Safety Regulatory Compliance EMC/EMIHard Drive Handling Precautions HandlingandInstallationElectro-Static Discharge ESD Unpacking and Inspection Multi-pack Shipping ContainerPhysical Installation RepackingBefore You Begin Hook upSet up Start upPinDescriptionSummary InterfaceConnectorATInterfaceDescription PIN IGN ALPIN Name Signal Name Signal Desc Ription Pin Description TableIM in G Paramet ERS Mode PIO TimingImin G Paramet ERS Mode DMATimingUltra DMA Timing ModeSustained 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 Task File Registers HostSoftwareInterfacePOR T EAD WR ITE Conten TS LBA Bits CommandRegister Seek, Format, and Diagnostic CommandsSummary M M a N D N a M E M M a N D code PA R a M E T E R S U S E DControl Diagnostic Registers Reset and Interrupt Handling InterfaceCommands ReadCommands Read DMA WriteCommands Write Multiple VAL UE DES C RIP Tion ModeSet/CheckCommandsEC TOR LE VE L VAL UE Omman D PowerModeCommands Timer VAL UE TIME-OUT PeriodSleep Mode InitializationCommands Or D ENT Desc RiptionOr D 15- 10, as c urrently defined Initialize Drive Parameters Seek,FormatandDiagnosticCommands ER ROR Code Desc RiptionA.R.T. CommandSet Key RegisterNo Quibble Service ServiceandSupportService Policy Product SupportFrom Dial Glossary Channel Correctable errorCentral processing unit CPU CharacterError correction code ECC Direct accessDirect memory access DMA Error freeFrequency response Hard errorHead disk assembly HDA Gigabyte GBLogic Late windowLatency Logical addressRandom access memory RAM Phase locked loop PLLPhase margin Read gate signalSequential access Sector pulse signalSeek complete signal Soft errorUnrecoverable error Strobe offset signalUn-correctable error Write gate signal