Seagate ST500VT000 Handbuch PDF herunterladen (Seite 24)

SEAGATE VIDEO 2.5 HDD PRODUCT MANUAL, REV. F 20

SERIAL ATA (SATA) INTERFACE

4.3.1 Identify Device command

The Identify Device command (command code EC

) 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 Table 10. 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. Refer to Drive Specifications on page 3 for default

parameter settings.

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

Table 10 Identify Device command

Word Description Value

Configuration information:

• Bit 15: 0 = ATA; 1 = ATAPI

• Bit 7: removable media

• Bit 6: removable controller

• Bit 0: reserved

0C5A

1 Number of logical cylinders 16,383

2 Specific configuration C837

3 Number of logical heads 16

4 Retired 0000

5 Retired 0000

6 Number of logical sectors per logical track: 63 003F

7–9 Retired 0000

10–19 Serial number: (20 ASCII characters, 0000

= none) ASCII

20 Retired 0000

21 Retired 8000

22 Obsolete 0004

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)

ST500VT000

ST320VT000

ST250VT000

(Bits 7–0)

Maximum sectors per interrupt on Read multiple and Write multiple (16)

8010

48 Trusted Computing Feature set options 0000

49 Standard Standby timer, IORDY supported and may be disabled 2F00

50 Capabilities 4000

51 PIO data-transfer cycle timing mode 0200

52 Retired 0200

53 Words 54–58, 64–70 and 88 are valid 0007

54 Number of current logical cylinders xxxx

55 Number of current logical heads xxxx

56 Number of current logical sectors per logical track xxxx

57–58 Current capacity in sectors xxxx

Number of sectors transferred during a

Read Multiple or Write Multiple command

xxxx

60–61

Total number of user-addressable sectors

This field contains a value that is one greater than the total number of

user-addressable sectors. The maximum value that shall be placed in this

field is 0FFFFFFFh. The 0FFFFFFFh value applies to all capacities over

137GB (see Section 2.1 for related information).

ST500VT000 = 0FFFFFFFh

ST320VT000 = 0FFFFFFFh

ST250VT000 = 0FFFFFFFh

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Kommentare zu diesen Handbüchern

Keine Kommentare

Seagate ST500VT000 Handbuch Seite 24

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Interne Festplatten Seagate ST500VT000