Fujitsu MPD3XXXAT manual Address translation example in LBA mode Power Save, Power save mode

(2)LBA mode

Logical address assignment in the LBA mode starts from physical cylinder 0, physical head 0, and physical sector 1. The logical address is advanced at the subsequent sector from the last sector of the current track. The first physical sector of the subsequent physical track is the consecutive logical sector from the last sector of the current physical track.

Figure 6.6 shows an example of (assuming there is no track skew).

Physical sector
	1	2	3
Physical cylinder 0
	LBA	LBA	LBA
Physical head 0	0	1	2
	1	2	3
Physical cylinder 0
	LBA	LBA	LBA
Physical head 1	406	407	408

ex: Zone 0

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. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . .

405 406 407 408

LBA LBA SP SP

404405

405406 407 408

LBA LBA SP SP
810	811

Physical parameter

- Physical sector: 1 to 406 (For the rest, 2 spare sectors)

Figure 6.6 Address translation (example in LBA mode)

6.3Power Save

The host can change the power consumption state of the device by issuing a power command to the device.

6.3.1Power save mode

There are four types of power consumption state of the device including active mode where all circuits are active.

In the power save mode, power supplying to the part of the circuit is turned off. There are three types of power save modes:

∙Idle mode

∙Standby mode

∙Sleep mode

The drive moves from the Active mode to the idle mode by itself.

Regardless of whether the power down is enabled, the device enters the idle mode. The device also enters the idle mode in the same way after power-on sequence is completed.

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