Identify Device Command - Seagate Constellation ES.3 ST4000NM0033 Product Manual

Command name
Write Multiple Extended
Write Multiple FUA Extended
Write Sectors
Write Sectors Without Retries
Write Sectors Extended
Write Uncorrectable
6.3.1

Identify Device command

The Identify Device command (command code EC
organized as a single 512-byte block of data, whose contents are shown in Table 9 on page 33. 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 6 for default
parameter settings.
The following commands contain drive-specific features that may not be included in the Serial ATA specification.
Word Description
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
0 • Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders
2 ATA-reserved
3 Number of logical heads
4 Retired
5 Retired
6 Number of logical sectors per logical track: 63
7–9 Retired
10–19 Serial number: (20 ASCII characters, 0000
20 Retired
21 Retired
22 Obsolete
Firmware revision
23–26
(8 ASCII character string, padded with blanks to end of string)
Drive model number:
27–46
(40 ASCII characters, padded with blanks to end of string)
(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write
47
multiple (16)
48 Reserved
49 Standard Standby timer, IORDY supported and may be disabled
50 ATA-reserved
51 PIO data-transfer cycle timing mode
52 Retired
53 Words 54–58, 64–70 and 88 are valid
54 Number of current logical cylinders
55 Number of current logical heads
Constellation ES.3 Serial ATA Product Manual, Rev. F
Command code (in hex)
39
H
CE
H
30
H
31
H
34
H
45
H
) transfers information about the drive to the host following power up. The data is
H
= none)
H
Value
0C5A
H
16,383
0000
H
16
0000
H
0000
H
003F
H
0000
H
ASCII
0000
H
0400
H
0000
H
x.xx
8010
H
0000
H
2F00
H
0000
H
0200
H
0200
H
0007
H
xxxx
H
xxxx
H
35