[signal]

[I/O]

[Description]

IORDY

O

This signal is negated to extend the host transfer cycle of any host

 

 

register access (Read or Write) when the device is not ready to

 

 

respond to a data transfer request.

DDMARDY–

O

DDMARDY– is a flow control signal for Ultra DMA data out bursts.

 

 

This signal is asserted by the device to indicate to the host that the

 

 

device is ready to receive Ultra DMA data out bursts. The device may

 

 

negate DDMARDY– to pause an Ultra DMA data out burst.

DSTROBE

O

DSTROBE is the data in strobe signal from the device for an Ultra

 

 

DMA data in burst. Both the rising and falling edge of

 

 

DSTROBE latch the data from DATA 0-15 into the host. The

 

 

device may stop generating DSTROBE edges to pause an Ultra

 

 

DMA data in burst.

CSEL

I

This signal to configure the device as a master or a slave device.

 

 

When CSEL signal is grounded, the IDD is a master device.

 

 

When CSEL signal is open, the IDD is a slave device.

 

 

This signal is pulled up with 10 kΩ resistor.

DMACK–

I

The host system asserts this signal as a response that the host

 

 

system receive data or to indicate that data is valid.

DMARQ

O

This signal is used for DMA transfer between the host system and

 

 

the device. The device asserts this signal when the device

 

 

completes the preparation of DMA data transfer to the host system

 

 

(at reading) or from the host system (at writing).

 

 

The direction of data transfer is controlled by the IOR- and IOW-

 

 

signals. In other word, the device negates the DMARQ signal

 

 

after the host system asserts the DMACK– signal. When there is

 

 

another data to be transferred, the device asserts the DMARQ

 

 

signal again.

 

 

When the DMA data transfer is performed, IOCW16–, CS0– and

 

 

CS1- signals are not asserted. The DMA data transfer is a 16-bit

 

 

data transfer. The device has a 10 kΩ pull-down resistor on this

 

 

signal.

GND

Grounded

Note:

"I" indicates input signal from the host to the device. "O" indicates output signal from the device to the host.

"I/O" indicates common output or bi-directional signal between the host and the device.

C141-E077-01EN

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Fujitsu MPE3XXXAT manual Iordy, Ddmardy

MPE3XXXAT specifications

The Fujitsu MPE3XXXAT series is a robust line of hard disk drives (HDDs) known for their reliability, performance, and advanced technology. Designed primarily for enterprise storage solutions, these drives cater to high-demand environments such as data centers, servers, and workstations. With capacities ranging from hundreds of gigabytes to several terabytes, the MPE3XXXAT series offers scalable storage options to accommodate a variety of applications.

One of the standout features of the MPE3XXXAT series is its high rotational speed. With most models operating at 7200 RPM, these drives ensure faster data access and improved read/write performance. This speed makes them ideal for applications requiring quick data retrieval, such as database management and data-intensive workloads. Furthermore, the series utilizes a Serial ATA (SATA) interface, which facilitates seamless connectivity and compatibility with a wide range of systems.

The Fujitsu MPE3XXXAT series is built with advanced technologies that enhance durability and longevity. Notably, the drives incorporate advanced error correction algorithms and vibration resistance features, which are crucial for maintaining data integrity over time. This is particularly important in multi-drive environments where vibrations from one drive can affect the performance of others. The drives are also designed with low power consumption in mind, contributing to energy savings without compromising performance.

In terms of data security, the MPE3XXXAT series supports various security features that protect against unauthorized access. These include ATA security features that enable password protection and robust encryption to safeguard sensitive information from potential breaches. This aspect is particularly significant for enterprises that handle confidential data and require stringent security measures.

The operational temperature range of the MPE3XXXAT drives is optimized for demanding environments, allowing them to function effectively in a variety of conditions. Their reliability is backed by an impressive Mean Time Between Failures (MTBF), which signifies their resilience and the manufacturer's commitment to quality.

Overall, the Fujitsu MPE3XXXAT series stands out as a reliable choice for enterprise storage needs. With its blend of high speed, capacity, durability, and security features, it addresses the challenges faced by modern data centers and businesses that require efficient data management solutions. Whether for backup, archival, or active data storage, the MPE3XXXAT series is designed to deliver consistent performance and peace of mind for users.