Seagate ST960210AS, ST980210AS, ST940210A manual Identify Device command, Word Description Value

Command name	Command code (in hex)
Security Set Password	F1h
Security Unlock	F2h
Security Erase Prepare	F3h
Security Erase Unit	F4h
Security Freeze Lock	F5h
Security Disable Password	F6h

4.4Identify Device command

The Identify Device command (command code ECH) transfers information about the drive to the host following power up. The data is organized as a single 512-byte block of data, whose contents are shown in the table on page 27. All reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state of the drive. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Serial ATA specifica- tion.

Word	Description	Value
	Configuration information:	0C5AH
	• Bit 15: 0 = ATA; 1 = ATAPI
0	• Bit 7: removable media
	• Bit 6: removable controller
	• Bit 0: reserved
1	Number of logical cylinders	16,383
2	ATA-reserved	0000H
3	Number of logical heads	16
4	Retired	0000H
5	Retired	0000H
6	Number of logical sectors per logical track: 63	003FH
7–9	Retired	0000H
10–19	Serial number: (20 ASCII characters, 0000H = none)	ASCII
20	Retired	0000H
21	Retired	0400H
22	Obsolete	0000H
23–26	Firmware revision (8 ASCII character string, padded with	x.xx
	blanks to end of string)
27–46	Drive model number: (40 ASCII characters, padded with	ST980210A
	blanks to end of string)	ST980210AS
		ST960210A
		ST960210AS
		ST940210A
		ST940210AS
		ST920210AS
47	(Bits 7–0) Maximum sectors per interrupt on Read multiple	8010H
	and Write multiple (16)

LD25 Series 5400.2 Product Manual, Rev. C 31