5.3 Host Commands

*5 Word 50: Device capability

 

Bit 15:

0

 

 

Bit 14:

1

 

 

Bit 13 to 1 Reserved

 

Bit 0

Standby timer value '1' = Standby timer value of the device is the

 

smallest value.

 

*6 Word 51: PIO data transfer mode

 

Bit 15-8:

PIO data transfer mode

X’02’=PIO mode 2

Bit 7-0:

Undefined

 

*7 Word 53: Enable/disable setting of word 54-58 and 64-70

Bit 15-3:

Reserved

 

Bit 2:

1

= Enable the word 88

 

Bit 1:

1

= Enable the word 64-70

 

Bit 0:

1

= Enable the word 54-58

 

*8 Word 59:

Transfer sector count currently set by READ/WRITE

 

MULTIPLE command

 

Bit 15-9:

Reserved

 

Bit 8:

1

= Enable the multiple sector transfer

Bit 7-0:

Transfer sector count currently set by READ/WRITE MULTIPLE

 

command without interrupt supports 2, 4, 8 and 16 sectors.

*9 Word 63: Multiword DMA transfer mode

 

Bit 15-11: Reserved

 

Bit 10:

'1' = multiword DMA mode 2 is selected.

Bit 9:

'1' = multiword DMA mode 1 is selected.

Bit 8:

'1' = multiword DMA mode 0 is selected.

Bit 7-3:

Reserved

 

Bit 2:

1

= Multiword DMA mode 2, 1, and 0 supported (Bit 1,0 = '1,1')

Bit 1:

1

= Multiword DMA mode 1, and 0 supported (Bit 0 = '1')

Bit 0:

1

= Mode 0

 

C141-E221

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Fujitsu MHV2060AS, MHV2080AS, MHV2040AS manual Command without interrupt supports 2, 4, 8 and 16 sectors
Page 156 Page 158

MHV2060AS, MHV2080AS, MHV2040AS specifications

Fujitsu's MHV series of hard disk drives, specifically the MHV2040AS, MHV2080AS, and MHV2060AS models, are designed to deliver efficient performance and reliability for a range of applications, particularly in desktop computing and entry-level servers. Each of these drives adheres to the Serial ATA (SATA) interface, which ensures compatibility across a wide range of systems and is known for its cost-effectiveness and simplicity.

The MHV2040AS features a storage capacity of 40GB, making it suitable for basic computing tasks including document editing, web browsing, and media playback. The MHV2060AS steps it up with a 60GB capacity, allowing for increased data storage needs while still maintaining a high level of performance. The largest of the trio, the MHV2080AS, offers an impressive 80GB of space, positioning it well for users who require additional room for applications, games, and multimedia files.

All drives in this series are equipped with a rotational speed of 5400 RPM, which strikes a balance between speed and power consumption. This speed is adequate for everyday tasks and allows for quick boot times and file access, making them ideal for home and small office environments. Additionally, the drives feature an average latency of 5.5 milliseconds, contributing to their overall performance in retrieving data.

In terms of technology, the MHV series employs a fluid dynamic bearing (FDB) motor, which not only enhances reliability but also reduces noise levels during operation. The FDB technology helps improve the longevity of the drives by minimizing wear on mechanical components. This characteristic is particularly important for users seeking quieter drives, especially in work environments that require minimal disruption.

The drives also incorporate advanced power management features that significantly reduce power consumption, making them an environmentally friendly choice for users mindful of their carbon footprint. These drives are equipped with energy-saving modes that optimize their performance when not in full use, ensuring lower operational costs and longer lifespan.

Overall, the Fujitsu MHV2040AS, MHV2080AS, and MHV2060AS hard drives provide a solid solution for users looking for dependable storage with a range of capacities to fit their needs. Their performance, combined with noise reduction technologies and energy efficiency, makes them a notable choice for various computing environments, from single-user desktops to small business applications.
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