INTERFACECOMMANDS

Initialization Commands

Identify Drive

Allows the host to receive parameter information from the drive.

When the command is received, the drive:

1.Sets BSY,

2.Stores the required parameter information in the sector buffer,

3.Sets the DRQ bit and

4.Generates an interrupt.

The host may then read the information out of the sector buffer. Parameter words in the buffer follow. Note that all reserved bits or words should be zeroes.

WORD

CONTENT DESCRIPTION

0

General configuration

 

15 = device (0 = ATA, 1 = ATAPI)

 

14-8 = not used

 

7, 1 = removable media data

 

6, 1 = not removable controller and/or device

 

5-1 = reserved

 

0

1

Number of cylinders

2

Reserved

3

Number of logical heads

4-5

Not used

6

Number of logical sectors per track

7-9

Not used

10 - 19

Drive serial number (40 ASCII characters)

20

Not used

21

Buffer size in 512 byte increments (0000h = not specified)

22

Number of Maxtor specific bytes available on Read/Write Long commands

23 - 26

Firmware revision (8 ASCII characters)

27 - 46

Model number (40 ASCII characters)

47

Maximum number of sectors that can be transferred per interrupt on read and write multiple commands

48

Reserved

49

Capabilities

 

15 - 14 = reserved

 

13 = standby timer (1 = values as specified in this standard are supported, 0 = values are Maxtor specific)

 

12 = reserved (advanced PIO mode support)

 

11, 1 = IORDY supported, 0 = IORDY may be supported

 

10, 1 = IORDY can be disabled

 

9-8 = reserved

 

7-0 = not used

7 – 9

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Maxtor 91366U4, 91024U3, 90683U2, 92049U6, 91707U5, 92732U8 Initialization Commands, Identify Drive, Word Content Description

91024U3, 92049U6, 90683U2, 91707U5, 92732U8 specifications

The Maxtor series of hard drives, specifically the models 91366U4, 92732U8, 91707U5, 90683U2, and 92049U6, exemplify the evolution of storage technology during the late 1990s and early 2000s, pivotal in shaping contemporary data storage solutions. These hard drives are recognized for their reliability, performance, and impressive capacities for their time.

The Maxtor 91366U4 features a storage capacity of 13.6 GB, delivering a spindle speed of 5,400 RPM. Its UATA interface allows for a fast data transfer rate, which was notable in its category. The model incorporates Advanced Power Management, contributing to lower power consumption and reduced heat generation, making it an appealing choice for system builders looking to enhance system longevity.

Moving on to the Maxtor 92732U8, this model increased capacity to 27.3 GB, aligning with the growing demand for more storage from users and businesses alike. This drive maintained a 5,400 RPM spindle speed while improving the access times, which aided in speeding up file retrieval processes. Noteworthy is its Plug and Play capability, which simplified installation and compatibility across various systems.

The Maxtor 91707U5 brought forward advancements in data integrity with the inclusion of features such as error correction codes. With a storage size of 17.3 GB and similar operational speeds, this model catered to users seeking reliable data management. Its robust build aimed to protect against accidents and environmental factors, ensuring data was safe while providing consistent performance.

The Maxtor 90683U2, with its 68.3 GB capacity, is particularly recognized for its reliability in desktop applications. The drive integrates a combination of Unidirectional Technology, driving advancements in read/write capabilities, and extensive shock protection, making it an ideal candidate for users with intensive data processing requirements.

Lastly, the Maxtor 92049U6 is known for its balanced blend of performance and functionality. Holding a capacity of 49.1 GB and retaining the sophisticated features of its predecessors, this model enabled faster data access and storage capabilities that met the needs of both home and professional users.

Together, these Maxtor hard drives embody the technological strides in the evolution of data storage—offering capacities and performances that set a standard in the industry and laid the groundwork for future storage solutions. The combination of innovative technologies and practical features made these drives highly sought after during their respective periods, and their legacy continues to influence modern data storage products.