Fujitsu MPD3XXXAT manual 6 Features register values and settable modes

Models: MPD3XXXAT

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Table 5.6 Features register values and settable modes

 

 

Features Register

Drive operation mode

 

 

X‘02’

Enables the write cache function.

 

 

X‘03’

Specifies the transfer mode. Supports PIO mode 4, single word DMA mode

 

2, and multiword DMA mode regardless of Sector Count register contents.

 

 

X‘04’

No operation.

 

 

X‘05’

Enable the advanced power management function.

 

 

X‘33’

No operation.

 

 

X‘54’

No operation.

 

 

X‘55’

Disables read cache function.

 

 

X‘66’

Disables the reverting to power-on default settings after software reset.

 

 

X‘77’

No operation.

 

 

X‘81’

No operation.

 

 

X‘82’

Disables the write cache function.

 

 

X‘84’

No operation.

 

 

X‘85’

Disable the advanced power management function.

 

 

X‘88’

No operation.

 

 

X‘89’

No operation.

 

 

X‘AA’

Enables the read cache function.

 

 

X‘AB’

No operation.

 

 

X‘BB’

Specifies the transfer of 4-byte ECC for READ LONG and WRITE LONG

 

commands.

 

 

X‘CC’

Enables the reverting to power-on default settings after software reset.

 

 

At power-on or after hardware reset, the default mode is the same as that is set with a value greater than X‘AA’ (except for write cache). If X‘66’ is specified, it allows the setting value greater than X‘AA’ which may have been modified to a new value since power-on, to remain the same even after software reset.

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Page 102
Image 102
Fujitsu MPD3XXXAT manual 6 Features register values and settable modes