Travelstar 5K160 (SATA) Hard Disk Drive Specification

14.11Initialize Device Parameters (91h)

Command Block Output Registers

 

 

 

 

 

 

 

 

 

 

 

Command Block Input Registers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register

 

 

 

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Register

 

 

 

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Data

 

 

 

 

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Data

 

 

 

 

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Feature

 

 

 

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Error

 

 

 

 

 

 

 

...See Below...

 

 

 

Sector Count

 

 

 

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Sector Count

 

 

 

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LBA Low

 

 

 

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LBA Low

 

 

 

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LBA Mid

 

 

 

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LBA Mid

 

 

 

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LBA High

 

 

 

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LBA High

 

 

 

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Device

 

 

 

 

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H

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Device

 

 

 

 

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Command

 

 

 

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Status

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

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CRC

 

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IDN

 

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DSC

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IDX

 

ERR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Figure 44 Initialize Device Parameters Command (91h)

The Initialize Device Parameters command enables the host to set the number of sectors per track and the number of heads minus 1, per cylinder. Words 54-58 in Identify Device Information reflects these parameters.

The parameters remain in effect until the following events:

Another Initialize Device Parameters command is received.

The device is powered off.

Soft reset occurs and the Set Feature option of CCh is set

Output Parameters To The Device

Sector Count The number of sectors per track. 0 does not mean there are 256 sectors per track, but there is no sector per track.

HThe number of heads minus 1 per cylinder. The minimum is 0 and the maximum is 15.

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Hitachi HTS541660J9SA00, HTS541640J9SA00 manual Initialize Device Parameters 91h, Initialize Device Parameters Command 91h

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