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 6 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 for SATA models or Draft ATA-7 Standard for PATA models.

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 blanks to

x.xx

 

end of string)

 

 

 

 

27–46

Drive model number

ST3xxxxxSCE - SATA models

 

(40 ASCII characters, padded with blanks to end of string)

ST3xxxxxACE - PATA models

 

 

 

 

 

47

(Bits 7–0) Maximum sectors per interrupt on Read multiple and

8010H

 

Write multiple (16)

 

 

 

 

48

Reserved

0000H

49

Standard Standby timer, IORDY supported and may be disabled

2F00H

50

ATA-reserved

0000H

51

PIO data-transfer cycle timing mode

0200H

52

Retired

0200H

53

Words 54–58, 64–70 and 88 are valid

0007H

54

Number of current logical cylinders

xxxxH

55

Number of current logical heads

xxxxH

56

Number of current logical sectors per logical track

xxxxH

57–58

Current capacity in sectors

xxxxH

59

Number of sectors transferred during a Read Multiple or Write Multi-

xxxxH

 

ple command

 

 

 

 

DB35.3 Series SATA/PATA Product Manual, Rev. F

29

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Seagate ST380215SCE, ST3160215SCE, ST3160215ACE, ST380215ACE manual Identify Device command, Word Description Value
Page 34 Page 36

ST3160215SCE, ST380215ACE, ST380215SCE, ST3160215ACE specifications

Seagate has long been a prominent name in the world of hard drives, known for their innovative technology and reliable performance. Among their extensive product lineup, the Seagate ST3160215ACE, ST380215SCE, ST380215ACE, and ST3160215SCE hard drives stand out for their robust features and capabilities, catering to both personal and enterprise-level needs.

The Seagate ST3160215ACE offers a capacity of 160 GB, while the ST380215SCE and ST380215ACE provide 80 GB of storage. These drives are renowned for their performance, equipped with a SATA interface that ensures fast data transfer rates and efficient connectivity. With spindle speeds of 7200 RPM, these models benefit from lower latency and higher data throughput, making them suitable for a variety of applications, including gaming, media storage, and data backup.

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In terms of physical design, the drives feature a compact 3.5-inch form factor, making them ideal for both desktop computers and external enclosures. The drives are built with Seagate's durable engineering, offering resilience against shock and vibration, which is essential for maintaining performance in various environmental conditions.

These models also employ a low power consumption strategy, which not only reduces energy costs but also extends the lifespan of the drive. By utilizing advanced power management technologies, the drives efficiently handle thermal conditions, ensuring stable operation even during prolonged usage.

Additionally, their compatibility with various operating systems and RAID configurations enhances their versatility in new and existing systems. Whether for a home PC or within an enterprise server setup, these Seagate models deliver performance and reliability, solidifying their place in the storage market. In summary, the Seagate ST3160215ACE, ST380215SCE, ST380215ACE, and ST3160215SCE drives offer a combination of capacity, speed, reliability, and energy efficiency, making them a compelling choice for users seeking dependable storage solutions.
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