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Seagate ST920814AM, ST940813AM, ST940814AM, ST930814AM ATA interface signals and connector pins

Models: ST940813AM ST920814AM ST920813AM ST940814AM ST930813AM ST930814AM

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4.0ATA interface

4.0ATA interface

These drives use the industry-standard ATA task file interface that supports 16-bit data transfers. It supports ATA programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–5. The drive also supports the use of the IORDY signal to provide reliable high-speed data transfers.

For detailed information about the ATA interface, refer to the AT Attachment - 6 with Packet Interface (ATA/ ATAPI-6), ANSI NCITS 361-200,subsequently referred to as the ATA-6 Standard.

4.1ATA interface signals and connector pins

The following table summarizes the signals on the 44-pin ATA interface connector. For a detailed description of these signals, refer to the ATA-6 Standard.

	Signal Name	Connector	Cable
	Signal Name	Contact	Conductor
		Contact	Conductor

	RESET-	1	1

	DD7	3	3

	DD6	5	5

	DD5	7	7

	DD4	9	9

	DD3	11	11

	DD2	13	13

	DD1	15	15

	DD0	17	17

	Ground	19	19

	DMARQ	21	21

	DIOW-	23	23

	DIOR-	25	25

	IORDY	27	27

	DMACK-	29	29

	INTRQ	31	31

	DA1	33	33

	DA0	35	35

	CS1FX-	37	37

	DASP-	39	39

	+5 V (Logic)	41	41

	Ground (Return)	43	43

	Cable	Connector	Signal Name
	Conductor	Contact	Signal Name
	Conductor	Contact

	2	2	Ground

	4	4	DD8

	6	6	DD9

	8	8	DD10

	10	10	DD11

	12	12	DD12

	14	14	DD13

	16	16	DD14

	18	18	DD15

	20	20	(keypin)

	22	22	Ground

	24	24	Ground

	26	26	Ground

	28	28	PSYNC:CSEL

	30	30	Ground

	32	32	IOCS16-

	34	34	PDIAG-

	36	36	DA2

	38	38	CS3FX-

	40	40	Ground

	42	42	+5V (Motor)

	44	44	No connection

EE25 Series Product Manual, Rev. E

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Seagate ST920814AM, ST940813AM, ST940814AM, ST930814AM, ST930813AM, ST920813AM ATA interface signals and connector pins

Contents

Product Manual ST940813AM ST940814AM ST930813AM ST930814AM ST920813AM ST920814AMEE25 Series August 1.0 Introduction 2.0 Drive specifications Contents3.0 Configuring and mounting the drive 5.0 Seagate Technology support servicesEE25 Series Product Manual, Rev. E List of Figures EE25 Series Product Manual, Rev. E 1.0 Introduction EE25 Series Product Manual, Rev. E 2.1 Specification summary 2.0 Drive specificationsEE25 Series Product Manual, Rev. E Specifications for 40 and 30 Gbyte models1.0 G 200 - 500 Hz EE25 Series Product Manual, Rev. E5.0 Gs 0 to peak, 5-500 Hz X, Y, Z axis 0, 22, 45 angles following web page5% to 90% operating Specifications for 20 Gbyte modelsEE25 Series Product Manual, Rev. E Drive specificationST920813AM ST920814AM2.2 Formatted capacity 2.3 Default logical geometry2.4 Physical organization LBA mode2.5 Recording and interface technology 2.6 Physical characteristics2.7 Seek time SpecificationEE25 Series Product Manual, Rev. E Start/stop times2.9.1 Power consumption 2.9 Power specificationsSpinup power Read/write power and current2.9.2 Conducted noise 2.9.1.1 Typical current profile2.9.3 Voltage tolerance Figure 1. Typical 5V startup and operation current profileIdle and Standby timers 2.9.4 Power-management modesActive mode Idle mode2.10.1 Ambient temperature 2.10 Environmental specifications2.10.2 Temperature gradient 2.10.3.2 Wet bulb temperature2.11.1.1 Operating shock 2.11.1 Shock2.11.1.2 Nonoperating shock Figure 2. Temperature vs. altitude capability2.11.2 Vibration 2.12 Acoustics2.11.2.1 Operating vibration 2.11.2.2 Nonoperating vibrationReliability 2.13 Electromagnetic immunity2.14 2.15 Agency certification 2.15.1 Safety certification2.15.2 Electromagnetic compatibility Korean RRL2.16.1 European Union Restriction of Hazardous Substances RoHS 2.16 Environmental protection2.17 Corrosive environment EE25 Series Product Manual, Rev. E 3.1 Handling and static discharge precautions 3.0 Configuring and mounting the drive3.2 Jumper settings 3.2.1 Master/slave configuration3.2.2 Cable-select option 3.3 Drive mounting4.0 ATA interface 4.1 ATA interface signals and connector pinsCommand name 4.1.1 Supported ATA commandsCommand code in hex ATA-standard commands9AH, FAH, FBH EE25 Series Product Manual, Rev. E4.1.2 Identify Device command xxxxH xxxxHxx07H xx3FHxxxxH EE25 Series Product Manual, Rev. EDisable write cache 4.1.3 Set Features commandEE25 Series Product Manual, Rev. E Seagate Service Centers 5.0 Seagate Technology support servicesWarranty Support InternetUSA/Canada/Latin America support services Customer Service OperationsEurope, the Middle East and Africa Support Services Asia/Pacific Support ServicesIndex NumericsPage Page EE25 Series Product Manual, Rev. E Page 920 Disc Drive, Scotts Valley, California 95066-4544, USA Seagate Technology LLC