Interface

g)Ultra DMA data in burst

The device should not invert the state of this signal in the period from the moment of STOP signal negation or HDMARDY-signal assertion to the moment of inversion of the first STROBE signal.

5.5.2.2Data transfer phase

a)The Data transfer phase is defined as the period from The Ultra DMA burst initiation phase to Ultra DMA burst termination phase.

b)The receiving side stops the Ultra DMA burst temporarily by negating DMARDY-signal, and then restarts the Ultra DMA burst by asserting again.

c)The transmitting side stops the Ultra DMA burst temporarily by not- performing inversion of STROBE signal, and then restarts the Ultra DMA burst by restarting the inversion.

d)When the transmitting side has stopped the inversion of STROBE signal, the receiving side should not output termination request signal immediately.

The receiving side should negate DMARDY signal when no termination request signal has been received from the transmission side, and then should output the termination request signal when a certain wait time has elapsed.

e)The transmitting side is allowed to send STROBE signal at a transfer speed that is lower than the one in the transferable fastest Ultra DMA mode, but is not allowed to send the STROBE signal at a higher speed than this.

The receiving side should be able to receive the data in the transferable fastest Ultra DMA mode.

5.5.2.3Ultra DMA burst termination phase

a)The transmitting side or receiving side is allowed to end the Ultra DMA burst.

b)The Ultra DMA burst termination is not the end of the command execution. When the Ultra DMA burst termination has occurred before the ending of the command, the command should be ended by starting a new Ultra DMA burst, or the host should issue command abort by outputting hard reset or soft reset to the device.

c)The Ultra DMA burst should be stopped temporarily before the receiving side outputs the ending request.

d)The host outputs the ending request by asserting STOP signal, and then the device negates DMARQ signal to confirm it.

e)The device outputs the ending request by negating DMARQ signal, and then the host asserts STOP signal to confirm it.

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C141-E104-02EN

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Fujitsu MHL2300AT, MHM200AT, MHM2100AT, MHM215OAT manual Data transfer phase, Ultra DMA burst termination phase

MHM215OAT, MHM200AT, MHL2300AT, MHM2100AT specifications

Fujitsu, a leader in storage technology, has developed a range of hard disk drives designed for reliability and performance, catering to both enterprise and consumer needs. The Fujitsu MHM2100AT, MHL2300AT, MHM200AT, and MHM215OAT models are part of this impressive lineup, showcasing various features and technologies that set them apart.

The MHM2100AT model is known for its 2.5-inch form factor, offering a storage capacity of 100GB. It operates at a speed of 5400 RPM, which balances performance and power efficiency. The drive utilizes ATA-6 interface (Parallel ATA) ensuring compatibility with a wide range of systems. One of its primary features is the advanced cache memory architecture, which allows for quicker access to frequently used data. This enhances overall system performance while preserving energy consumption.

The MHL2300AT provides a step up, with its 300GB of capacity. It also maintains a 5400 RPM speed and is designed for optimal heat dissipation and durability. This model is particularly suited for mobile computing applications due to its lightweight design and low power requirements. The MHL2300AT also integrates a sophisticated error correction code (ECC) technology, enhancing data integrity during storage and retrieval processes.

Moving on to the MHM200AT, this unit provides substantial storage of 200GB, maintaining a similar 5400 RPM speed. What sets the MHM200AT apart is its focus on data security with Built-in Security Features such as disk encryption capabilities. This model is suitable for professionals dealing with sensitive information, ensuring both performance and protection against data breaches.

Lastly, the MHM215OAT, another key model, balances user-friendly design with performance metrics. It offers a generous 150GB capacity and features an enhanced seek time for quick file access. With its emphasis on reliability, the MHM215OAT is often utilized in environments where uptime is critical, such as in commercial servers or high-performance workstations.

In conclusion, Fujitsu's MHM2100AT, MHL2300AT, MHM200AT, and MHM215OAT each possess unique features and technologies that cater to diverse user needs. Their combination of efficient power consumption, enhanced data integrity, and reliability make them compelling choices for businesses and individuals alike. Whether for mobile devices, personal computing, or enterprise applications, these models continue to exemplify Fujitsu's commitment to quality and performance in storage solutions.