Seagate Barracuda Green Product Manual - Page 29

Identify Device command - firmware

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www.seagate.com Serial ATA Interface Table 6 Supported ATA commands (Continued) Command name Command code (in hex) Write Multiple FUA Extended CEH Write Sectors 30H Write Sectors Without Retries 31H Write Sectors Extended 34H Write Uncorrectable 45H 4.3.1 Identify 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 on page 26. 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 Serial ATA specification. Table 7 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 0C5AH 1 Number of logical cylinders 16,383 2 ATA-reserved 3 Number of logical heads 0000H 16 4 5 6 7-9 10-19 20 21 22 23-26 Retired Retired Number of logical sectors per logical track: 63 Retired Serial number: (20 ASCII characters, 0000H = none) Retired Retired Obsolete Firmware revision (8 ASCII character string, padded with blanks to end of string) 0000H 0000H 003FH 0000H ASCII 0000H 0400H 0000H x.xx 27-46 47 48 49 Drive model number: (40 ASCII characters, padded with blanks to end of string) ST2000DL003 ST1500DL003 (Bits 7-0) Maximum sectors per interrupt on Read multiple and Write multiple (16) 8010H Reserved 0000H Standard Standby timer, IORDY supported and may be disabled 2F00H Barracuda Green SATA Product Manual, Rev. A 29

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Barracuda Green SATA Product Manual, Rev. A
29
www.seagate.com
Serial ATA Interface
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
26. 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 Serial ATA specification.
Write Multiple FUA Extended
CE
H
Write Sectors
30
H
Write Sectors Without Retries
31
H
Write Sectors Extended
34
H
Write Uncorrectable
45
H
Table 7
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
ATA-reserved
0000
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)
ST2000DL003
ST1500DL003
47
(Bits 7–0) Maximum sectors per interrupt on Read multiple and
Write multiple (16)
8010
H
48
Reserved
0000
H
49
Standard Standby timer, IORDY supported and may be disabled
2F00
H
Table 6
Supported ATA commands
(Continued)
Command name
Command code (in hex)