Seagate ST36421A, ST32112A, ST38421A, ST34311A manual Drive model number 40 Ascii char

Page 34

26	U4 Family Product Manual, Rev. D

Word	Description	Value


27–46	Drive model number: (40 ASCII char-	ST32112A
	acters, padded with blanks to end of	ST34311A
	string)	ST36421A
		ST38421A

47	(Bits 7–0) Maximum sectors per inter-	8010H
	rupt on Read multiple and Write mul-	8010H
	tiple (16)

48	Reserved	0000H

49	Standard Standby timer, IORDY	2F00H
	supported and may be disabled

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	xxxxH
	logical track	xxxxH

57–58	Current capacity in sectors	xxxxH

59	Number of sectors transferred during	xxxxH
	a Read Multiple or Write Multiple	xxxxH
	command

60–61	Total number of user-addressable	7A00H 0040H
	LBA sectors available:	(ST32112A)
	ST32112A = 4,225,536	F7F0H 0080H
	ST32112A = 4,225,536	(ST34311A)
	ST34311A = 8,452,080	(ST34311A)
	ST34311A = 8,452,080	3672H 00C0H
	ST36421A = 12,596,850	3672H 00C0H
	ST36421A = 12,596,850	(ST36421A)
	ST38421A = 16,498,944	C100H 00FBH
		(ST38421A)

62	Retired	0000H

Image 34

Contents Product Manual Page Product Manual Page Contents Configuring and mounting the drive ATA interfaceFigures Seagate Connfidential Review Draft not for DistributionSeagate Confidential Review Draft not for Distribution Introduction Specification summary table Track-to-track seek time Msec typical Vibration, nonoperating Formatted capacity Default logical geometryLBA Mode Physical organizationRecording and interface technology Physical characteristicsDrive Specification ST38421A, ST36421A ST34311A, ST32112A Seek timeSpinup power Power specificationsPower consumption Start/stop timesOperating power and current Seek ModeRead/Write power and current Idle mode powerTypical current profile Power Mode Typical Watts Typical Amps RMS 12VCurrent amps Time seconds Conducted noise Power-management modesVoltage tolerance Humidity Environmental tolerances Ambient temperatureTemperature gradient Relative HumidityShock Wet bulb temperatureAltitude Operating shockNonoperating vibration Operating vibrationDrive acoustics Reliability Agency certification Safety certificationElectromagnetic susceptibility Electromagnetic compatibilityFCC verification Australian C-TickU4 Family Product Manual, Rev. D Configuring and mounting the drive Handling and static-discharge precautionsJumper settings Master/slave configuration Master/slave jumper settingsUltra ATA/66 cable Important mounting precautionsCable-select option Drive mountingMounting dimensions-top, side and end view ATA interface signals and connector pins ATA interfaceO pins and supported ATA signals ATA Interface commands Supported ATA commands Command name Command code in hex ATA-standard commandsATA-standard power-management commands Identify Drive commandCommand name ATA-standard security commandsWord Description 27-46 Drive model number 40 Ascii char Multiword DMA active and modes Description if bit is set to Bit Word Set Features command 0CH4 S.M.A.R.T. commands Code in Features Register A.R.T. CommandPage U4 Family Product Manual, Rev. D U4 Family Product Manual, Rev. D

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