Interface

[Signal]

[I/O]

 

[Description]

ENCSEL

I

This signal is used to set master/slave using the CSEL signal (pin 28).

 

 

Pins B and D Open: Sets master/slave using the CSEL signal is

 

 

 

disabled.

 

 

 

Short: Sets master/slave using the CSEL signal is

 

 

 

enabled.

MSTR-

I

MSTR, I, Master/slave setting

 

 

Pin A, B, C, D open: Master setting

 

 

Pin A, B Short:

Slave setting

PUS-

I

When pin C is grounded, the drive does not spin up at power on.

RESET-

I

Reset signal from the host. This signal is low active and is asserted

 

 

for a minimum of 25 ∝s during power on.

DATA 0-15

I/O

Sixteen-bit bi-directional data bus between the host and the device.

 

 

These signals are used for data transfer

DIOW-

I

Signal asserted by the host to write to the device register or data port.

STOP

I

DIOW- must be negated by the host before starting the Ultra DMA

 

 

transfer. The STOP signal must be negated by the host before data is

 

 

transferred during the Ultra DMA transfer. During data transfer in

 

 

Ultra DMA mode, the assertion of the STOP signal asserted by the

 

 

host later indicates that the transfer has been suspended.

DIOR-

I

Read strobe signal from the host to read the device register or data

 

 

port

 

HDMARDY-

I

Flow control signal for Ultra DMA data In transfer (READ DMA

 

 

command). This signal is asserted by the host to inform the device

 

 

that the host is ready to receive the Ultra DMA data In transfer. The

 

 

host can negate the HDMARDY- signal to suspend the Ultra DMA

 

 

data In transfer.

 

HSTROBE

I

Data Out Strobe signal from the host during Ultra DMA data Out

 

 

transfer (WRITE DMA command). Both the rising and falling edges

 

 

of the HSTROBE signal latch data from Data 15-0 into the device.

 

 

The host can suspend the inversion of the HSTROBE signal to

 

 

suspend the Ultra DMA data Out transfer.

INTRQ

O

Interrupt signal to the host.

 

 

This signal is negated in the following cases:

−

−

−

−

−

Assertion of RESET- signal

Reset by SRST of the Device Control register

Write to the command register by the host

Read of the status register by the host

Completion of sector data transfer

(without reading the Status register)

The signal output line has a high impedance when no devices are selected or interruption is disabled.

5-4

C141-E221

Page 79 Page 81
Page 80
Image 80
Fujitsu MHV2040AS, MHV2080AS, MHV2060AS manual Mstr, Diow, Stop, Dior, Hdmardy
Page 79 Page 81

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.
Top Page Image Contents