Interface

Table 5.25 Features field values and settable modes (2/2)

Features

Field

Drive operation mode

X ' AA ' Enables the read cache function.

X ' BB '

Specifies the transfer of 4-byte ECC for READ LONG and WRITE LONG commands. (Note)

X ' C2 ' Disables the Acoustic management function.

X ' CC ' Enables the reverting to power-on default settings after software reset. (Note)

Note: Although there is a response to the command, nothing is done.

At power-on or after COMRESET, the default mode is set as follows.

Write cashe function

: Enabled

Transfer mode

: PIO Mode-4, Multiworld DMA Mode-2

Advanced power

 

management function

: Enabled (Mode-1)

Acoustic

 

management function

: State keeping

Read cashe function

: Enabled

Serial ATA function

: Prohibited

Error reporting conditions

(1)An undefined code is specified in the FR or SC field (ST = 51h, ER = 04h).

(2)A SATA communication error occurred (ST = 51h, ER = 14h).

At command issuance (Shadow Block O registers setting contents)

CM

1

1

1

0

1

 

1

 

1

1

 

 

 

 

 

 

 

 

 

 

 

DH

x

x

x

x

 

 

 

xx

 

 

 

 

 

 

 

 

 

 

 

CH

 

 

 

 

xx

 

 

 

 

CL

 

 

 

 

xx

 

 

 

 

SN

 

 

 

 

xx

 

 

 

 

SC

 

 

 

xx or *1~3

 

 

 

 

FR

 

 

 

[See Table 5.6]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-98

C141-E203-01EN

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Fujitsu MHT2040BH, MHT2060BH, MHT2080BH manual Features field values and settable modes 2/2, Error reporting conditions