5.3 Host Commands

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

1F7H(ST)

Status information

 

 

 

 

 

 

 

 

1F6H(DH)

x

x

x

DV

xx

 

 

 

 

 

 

1F5H(CH)

xx

 

 

 

 

1F4H(CL)

xx

 

 

 

 

1F3H(SN)

xx

 

 

 

 

1F2H(SC)

xx

 

 

 

 

1F1H(ER)

Error information

 

 

 

 

 

 

 

 

(23) IDLE (X’97’ or X’E3’)

Upon receipt of this command, the device sets the BSY bit of the Status register, and enters the idle mode. Then, the device clears the BSY bit, and generates an interrupt. The device generates an interrupt even if the device has not fully entered the idle mode. If the spindle of the device is already rotating, the spin-up sequence shall not be implemented.

By using this command, the automatic power-down function is enabled and the timer immediately starts the countdown. When the timer reaches the specified value, the device enters standby mode.

Enabling the automatic power-down function means that the device automatically enters the standby mode after a certain period of time. When the device enters the idle mode, the timer starts countdown. If any command is not issued while the timer is counting down, the device automatically enters the standby mode. If any command is issued while the timer is counting down, the timer is initialized and the command is executed. The timer restarts countdown after completion of the command execution.

The period of timer count is set depending on the value of the Sector Count register as shown below.

Sector Count register value

Point of timer

 

 

 

0

[X’00’]

30 minutes

 

 

 

1 to 3

[X’01’ to X’03’]

15 seconds

 

 

 

4 to 240

[X’04’ to X’F0’]

(Value ⋅ 5) seconds

 

 

 

241 to 251

[X’F1’ to X’FB’]

30 minutes

 

 

 

252

[X’FC’]

21 minutes

 

 

 

253

[X’FD’]

30 minutes

 

 

 

254 to 255

[X’FE’ to X’FF’]

21 minutes 15 seconds

 

 

 

C141-E104-02EN

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Fujitsu MHM215OAT, MHM200AT, MHM2100AT, MHL2300AT manual Host Commands
Page 133 Page 135

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.

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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.
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