User Manual
Table Of Contents
- SATA Product Manual
- 1.0 Introduction
- 2.0 Drive Specifications
- 2.1 Specification summary tables
- 2.2 Formatted capacity
- 2.3 Default logical geometry
- 2.4 Recording and interface technology
- 2.5 Physical characteristics
- 2.6 Start/stop times
- 2.7 Power specifications
- 2.8 Environmental specifications
- 2.9 Acoustics
- 2.10 Electromagnetic immunity
- 2.11 Warranty
- 2.12 Agency and Safety Certifications
- 2.13 Environmental protection
- 2.14 Corrosive environment
- 3.0 Configuring and Mounting the Drive
- 4.0 SATA Interface
Seagate BarraCuda Product Manual, Rev. F 24
www.seagate.com
4.3.1 Identify Device command
The Identify Device command (command code EC
H
) 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 on page 22. 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.
The following commands contain drive-specific features that may not be included in the SATA specification.
Table 9 Identify Device commands
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5A
H
1 Number of logical cylinders 16,383
2
Specific configuration:
37C8h Device requires SET FEATURES subcommand to spin-up after power-up
and IDENTIFY DEVICE data is incomplete.
738Ch Device requires SET FEATURES subcommand to spin-up after power-up
and IDENTIFY DEVICE data is complete.
8C73h Device does not require SET FEATURES subcommand to spin-up after
power-up and IDENTIFY DEVICE data is incomplete.
C837h Device does not require SET FEATURES subcommand to spin-up after
power-up and IDENTIFY DEVICE data is complete.
C837
H
3 Number of logical heads 16
4 Retired 0000
H
5 Retired 0000
H
6 Number of logical sectors per logical track: 63 003F
H
7–9 Retired 0000
H
10–19 Serial number: (20 ASCII characters, 0000
H
= none) ASCII
20 Retired 0000
H
21 Retired 0400
H
22 Obsolete 0000
H
23–26
Firmware revision
(8 ASCII character string, padded with blanks to end of string)
x.xx
27–46
Drive model number:
(40 ASCII characters, padded with blanks to end of string)
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple and Write multiple (16) 8010
H
48
Trusted Computing feature set options:
15 Shall be cleared to zero
14 Shall be set to one
13:1 Reserved for the Trusted Computing Group
0 Trusted Computing feature set is supported
4000
H
49 Standard Standby timer, IORDY supported and may be disabled 2F00
H