Commands without data transfer | Fujitsu MHM215OAT, MHM200AT

5.4 Command Protocol

IMPORTANT

For transfer of a sector of data, the host needs to read Status register (X’1F7’) in order to clear INTRQ (interrupt) signal. The Status register should be read within a period from the DRQ setting by the device to 50 ∝ s after the completion of the sector data transfer. Note that the host does not need to read the Status register for the first and the last sector to be transferred. If the timing to read the Status register does not meet above condition, normal data transfer operation is not assured guaranteed.

When the host issues the command even if the drive requests the data transfer (DRQ bit is set), or when the host executes resetting, the device correct operation is not guaranteed.

5.4.3 Commands without data transfer

Execution of the following commands does not involve data transfer between the host and the device.

•

RECABLIBRATE

SEEK

READY VERIFY SECTOR(S)

EXECUTE DEVICE DIAGNOSTIC

INITIALIZE DEVICE PARAMETERS

SET FEATURES

SET MULTIPLE MODE

SET MAX ADDRESS

READ NATIVE MAX ADDRESS

IDLE

IDLE IMMEDIATE

STANDBY

STANDBY IMMEDIATE

CHECK POWER MODE

SECURITY ERASE PREPARE

SECURITY FREEZE LOCK

FLUSH CACHE

Figure 5.6 shows the protocol for the command execution without data transfer.

C141-E104-02EN

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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.

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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.

Fujitsu MHM215OAT, MHM200AT, MHM2100AT, MHL2300AT manual Commands without data transfer

Models: MHM215OAT MHM200AT MHL2300AT MHM2100AT