Seagate ST903203N1A2ASRK, ST980412ASG, ST9500420ASG, ST9320423ASG, ST9250410AS manual XxxxH

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Word	Description	Value

27–46	Drive model number: (40 ASCII characters, padded with	ST9500420AS
	blanks to end of string)	ST9500420ASG
		ST9320423AS
		ST9320423ASG
		ST9250410AS
		ST9250410ASG
		ST9160412AS
		ST9160412ASG
		ST9120410AS
		ST9120410ASG
		ST980412AS
		ST980412ASG

47	(Bits 7–0) Maximum sectors per interrupt on Read multiple	8010H
	and Write multiple (16)
48	Reserved	0000H
49	Standard Standby timer, IORDY supported and may be dis-	2F00H
	abled
50	ATA-reserved	0000H
51	PIO data-transfer cycle timing mode	0200H
52	Retired	0200H
53	Words 54–58, 64–70 and 88 are valid	0007H
54	Number of current logical cylinders	xxxxH
55	Number of current logical heads	xxxxH
56	Number of current logical sectors per logical track	xxxxH
57–58	Current capacity in sectors	xxxxH
59	Number of sectors transferred during a Read Multiple or	xxxxH
	Write Multiple command
60–61	Total number of user-addressable sectors	ST9500420AS	= 0FFFFFFFh
	This field contains a value that is one greater than the total	ST9500420ASG = 0FFFFFFFh
	number of user-addressable sectors. The maximum value	ST9320423AS	= 0FFFFFFFh
	that shall be placed in this field is 0FFFFFFFh. The	ST9320423ASG = 0FFFFFFFh
	0FFFFFFFh value applies to all capacities over 137Gbytes	ST9250410AS	= 0FFFFFFFh
	(see Section 2.2 and 2.3 for related information).	ST9250410ASG = 0FFFFFFFh
		ST9160412AS	= 0FFFFFFFh
		ST9160412ASG = 0FFFFFFFh
		ST9120410AS	= 234,441,648
		ST9120410ASG = 234,441,648
		ST980412AS	= 156,301,488
		ST980412ASG	= 156,301,488

62	Retired	0000H
63	Multiword DMA active and modes supported	xx07H
	(see note following this table)
64	Advanced PIO modes supported (modes 3 and 4 supported)	0003H
65	Minimum multiword DMA transfer cycle time per word	0078H
	(120 nsec)
66	Recommended multiword DMA transfer cycle time per word	0078H
	(120 nsec)
67	Minimum PIO cycle time without IORDY flow control	00F0H
	(240 nsec)
68	Minimum PIO cycle time with IORDY flow control (120 nsec)	0078H

Momentus 7200.4 SATA Product Manual, Rev. C

27

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Contents Momentus 7200.4 Sata Page Contents Momentus 7200.4 Sata Product Manual, Rev. C List of Figures Page Standard models Free Fall Protection models IntroductionAbout the Serial ATA interface Specification summary table Drive specificationsDrive specifications LBA mode Default logical geometryFormatted capacity Physical organizationPhysical characteristics Drive specificationRecording and interface technology Start/stop times Seek timeTypical seek times Typical seek times msec ReadPower specifications Typical +5V only startup and operation current profile Typical current profileVoltage tolerance Conducted noisePower management modes Power-management modesActive mode Idle modeEnvironmental specifications Acoustics Electromagnetic immunity Free Fall Protection featureReliability Radio frequency environmentsAgency certification Page Environmental protection European Union Restriction of Hazardous Substances RoHSChina Restriction of Hazardous Substances RoHS Directive Corrosive environment Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewHot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function Definition Command name Command code in hex ATA-standard commands Supported ATA commandsCommand name Command code in hex Identify Device command ATA-standard security commandsWord Description Value XxxxH Xx7FH Description if bit is set to Bit Set Features command values Set Features command3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Seagate Online Support and Services Seagate Technology support servicesIndex ITE TPI Momentus 7200.4 Sata Product Manual, Rev. C Page Seagate Technology LLC