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-E217

Page 79 Page 81
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Fujitsu MHV2100AH, MHV2060AH, MHV2080AH, MHV2040AH manual Mstr, Diow, Stop, Dior, Hdmardy
Page 79 Page 81

MHV2040AH, MHV2080AH, MHV2060AH, MHV2100AH specifications

The Fujitsu MHV series of hard disk drives, specifically the MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH, are renowned for their reliability and performance in the mobile HDD segment. Designed primarily for use in laptops and other portable devices, these drives integrate cutting-edge technologies to meet the demands of today's data-intensive applications.

One of the hallmark features of the MHV series is its high data density, allowing for substantial storage capabilities in compact sizes. The MHV2060AH offers a storage capacity of 60 GB, while the MHV2080AH and MHV2100AH offer 80 GB and 100 GB respectively. The MHV2040AH provides a slightly more modest but still robust 40 GB of storage. This range of capacities ensures that users can select the model that best fits their storage needs.

The drives utilize the latest perpendicular magnetic recording (PMR) technology, which enhances recording efficiency and increases data storage densities. This technology significantly optimizes the use of disk surface area, providing better performance and more reliable data access. Additionally, the MHV series incorporates an advanced actuator system that ensures precision head positioning, enhancing data integrity and reducing error rates during read and write operations.

In terms of performance, the MHV series maintains a revolutions per minute (RPM) rating of 5400, which strikes a balance between speed and energy efficiency, making these drives suitable for low-power applications. The drives are also designed with a low acoustic level, generating minimal noise during operation—a crucial factor for mobile users who prefer quieter devices.

Furthermore, the Fujitsu MHV series features a robust shock resistance design, allowing them to withstand the rigors of mobile computing. This makes them suitable for use in portable environments subject to vibration and physical movement, thus ensuring data security and drive longevity.

Overall, the Fujitsu MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH represent a formidable selection of mobile hard disk drives filled with advanced technologies and features, making them well-suited for a wide range of applications in today's fast-paced digital world. With their combination of storage capacity, performance, and durability, these drives continue to serve as reliable solutions for users seeking efficient data storage in portable formats.
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