Initialize Device Parameters X’91’ | Fujitsu MHW2060AC, MHW2040AC

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(8) INITIALIZE DEVICE PARAMETERS (X’91’)

The host system can set the number of sectors per track and the maximum head number (maximum head number is “number of heads minus 1”) per cylinder with this command. Upon receipt of this command, the device sets the BSY bit of Status register and saves the parameters. Then the device clears the BSY bit and generates an interrupt.

When the SC register is specified to X’00’, an ABORTED COMMAND error is posted. Other than X’00’ is specified, this command terminates normally.

The parameters set by this command are retained even after reset or power save operation regardless of the setting of disabling the reverting to default setting.

The device ignores the L bit specification and operates with only CHS mode specification.

At command issuance (I/O registers setting contents)

1F7H(CM)	1	0	0	1	0	0	0	1
1F6H(DH)	x	x	x	DV	Max. head No.
1F5H(CH)	xx
1F4H(CL)	xx
1F3H(SN)	xx
1F2H(SC)	Number of sectors/track
1F1H(FR)	xx

At command completion (I/O registers contents to be read)

1F7H(ST)	Status information
1F6H(DH)	x	x	x	DV	Max. head No.
1F5H(CH)	xx
1F4H(CL)	xx
1F3H(SN)	xx
1F2H(SC)	Number of sectors/track
1F1H(ER)	Error information

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C141-E258

MHW2060AC, MHW2040AC specifications

The Fujitsu MHW2040AC and MHW2060AC are notable hard disk drives (HDDs) that have been widely used in various computing applications, especially in laptops and compact devices. These models are part of Fujitsu's commitment to providing reliable storage solutions that meet the demands of modern computing.

The MHW2040AC offers a storage capacity of 40 GB, while the MHW2060AC provides a slightly larger capacity at 60 GB. This range of storage makes both models suitable for users looking for dependable space for documents, multimedia files, and software applications. Both drives utilize a 2.5-inch form factor, ideal for mobile computing, as they are lightweight and designed to fit into space-constrained environments.

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The MHW2040AC and MHW2060AC also incorporate several advanced technologies to bolster their performance and reliability. One such feature is the use of a fluid dynamic bearing (FDB) for the spindle motor, which minimizes noise and vibration, thus improving the overall user experience. Additionally, both drives come with error correction technology that helps maintain data integrity by detecting and correcting errors during read and write operations.

Moreover, these HDDs feature a shock sensor that can detect sudden movements, allowing the drive to park its heads to prevent data loss and hardware damage. This is particularly beneficial in mobile environments where the risks of impact are higher.

Both the MHW2040AC and MHW2060AC are designed with energy-saving features, making them an environmentally responsible choice for energy-conscious consumers. Their low power consumption not only contributes to a reduced carbon footprint but also extends battery life for portable devices.

In summary, the Fujitsu MHW2040AC and MHW2060AC are reliable, efficient, and user-friendly hard disk drives that combine moderate capacities with advanced features designed to enhance performance, ensure data integrity, and extend device longevity. These drives are well-suited for a range of applications, making them a solid choice for users seeking dependable storage solutions.

Fujitsu MHW2060AC, MHW2040AC manual Initialize Device Parameters X’91’

Models: MHW2060AC MHW2040AC

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(8) INITIALIZE DEVICE PARAMETERS (X’91’)

MHW2060AC, MHW2040AC specifications