Hitachi HTS541616J9SA00, HTS541640J9SA00, HTS541680J9SA00, HTS541660J9SA00 manual Identify Device ECh

Travelstar 5K160 (SATA) Hard Disk Drive Specification

14.8 Identify Device (ECh)

Command Block Output Registers																			Command Block Input Registers
Register					7		6			5	4			3	2		1	0	Register					7	6				5	4		3	2	1	0
Data				-		-			-		-		-		-	-		-	Data					-	-				-		-	-	-	-	-
Feature					-		-			-	-			-	-		-	-	Error							...See Below...
Sector Count					-		-			-	-			-	-		-	-	Sector Count					-	-				-		-	-	-	-	-
LBA Low				-		-			-		-		-		-	-		-	LBA Low					-	-			-			-	-	-	-	-
LBA Mid					-		-			-	-			-	-		-	-	LBA Mid					-	-				-		-	-	-	-	-
LBA High				-		-			-		-		-		-	-		-	LBA High					-	-			-		-		-	-	-	-
Device				-		-			-		-		-		-	-		-	Device					-	-			-			-	-	-	-	-
Command				1		1			1		0		1		1	0		0	Status							...See Below...
			Error Register																			Status Register
7	6	5	4	3				2				1				0			7	6	5	4	3			2						1		0
CRC	UNC	0	IDN	0				ABT				T0N					AM		BSY	RDY	DF	DSC	DRQ				COR					IDX		ERR
																	N
0	0	0	0	0						V		0				0			0	V	0	-	-			0						0		V

Figure 33 Identify Device Command (ECh)

The Identify Device command requests the device to transfer configuration information to the host. The device will transfer a sector to the host containing the information in “Identify device information” on Page 5-5.

Word	Content		Description
00	045xH		Drive classification, bit assignments:
			15	(=0):	1=ATAPI device, 0=ATA device
		*	14	(=0):	1=format speed tolerance gap required
		*	13	(=0):	1=track offset option available
		*	12	(=0):	1=data strobe offset option available
		*	11	(=0):	1=rotational speed tolerance > 0.5%
		*	10	(=1):	1=disk transfer rate > 10 Mbps
		*	9	(=0):	1=disk transfer rate > 5 Mbps but <= 10 Mbps
		*	8	(=0):	1=disk transfer rate <= 5 Mbps
			7	(=0):	1=removable cartridge device
			6	(=1):	1=fixed device
		*	5	(=0):	1=spindle motor control option implemented
		*	4	(=1):	1=head switch time > 15 us
		*	3	(=1):	1=not MFM encoded
			2	(=x):	1=Identify data incomplete
		*	1	(=1):	1=hard sectored
			0	(=0):	Reserved
01	Note.2		Number of cylinders in default translate mode
02	xxxxh		Specific configuration
			C837h		SET FEATURES subcommand is not required to spin-up
					and IDENTIFY DEVICE response is complete
			37C8h		SET FEATURES subcommand is required to spin-up and
					IDENTIFY DEVICE response is incomplete
03	Note.2		Number of heads in default translate mode
04-05	0	*	Reserved
06	003FH		Number of sectors per track in default translate mode
07-09	0		Reserved
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