Fujitsu MPB3043AT, MPB3054AT, MPB3032AT, MPB3052AT 5 Features register values and settable modes

Models: MPB3043AT MPB3021AT MPB3052AT MPB3032AT MPB3054AT

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Table 5.5 Features register values and settable modes

 

Table 5.5 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‘55’

Disables read cache function.

 

 

X‘66’

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

 

 

X‘82’

Disables the write cache function.

 

 

X‘AA’

Enables the read cache function.

 

 

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.

At command issuance (I/O registers setting contents)

1F7H(CM)

1

1

1

0

1

1

1

1

 

 

 

 

 

 

 

 

 

 

 

1F6H(DH)

×

×

×

 

DV

 

 

 

xx

 

 

 

 

 

 

 

 

 

 

 

 

1F5H(CH)

 

 

 

 

 

xx

 

 

 

1F4H(CL)

 

 

 

 

 

xx

 

 

 

1F3H(SN)

 

 

 

 

 

xx

 

 

 

1F2H(SC)

 

 

 

xx or transfer mode

 

 

 

1F1H(FR)

 

 

 

[See Table 5.6]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

1F7H(ST)

 

 

 

Status information

 

 

 

 

 

 

 

 

 

1F6H(DH)

×

×

×

 

DV

 

xx

 

 

 

 

 

 

 

 

1F5H(CH)

 

 

 

 

xx

 

1F4H(CL)

 

 

 

 

xx

 

1F3H(SN)

 

 

 

 

xx

 

1F2H(SC)

 

 

 

 

xx

 

1F1H(ER)

 

 

 

Error information

 

 

 

 

 

 

 

 

 

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C141-E045-02EN

Page 99
Image 99
Fujitsu MPB3043AT, MPB3054AT, MPB3032AT, MPB3052AT, MPB3021AT manual 5 Features register values and settable modes