Fujitsu MHV2200BT Product Manual page 191

Table 5.35 Features field values and settable modes (2/2)
Features
Field
X ' 85 ' Set the advanced power management mode to Mode-0.
X ' 86 ' Disables the Power-Up In Standby function. (Note)
X ' 88 ' Undefined (Note)
X ' 8B ' Disable Write Read Verify (T13 Proposal)
X ' 90' Disables the Serial ATA function.
X ' AA ' Enables the read cache function.
Specifies the transfer of 4-byte ECC for READ LONG and WRITE LONG
X ' BB '
commands. (Note)
X ' C2 ' Disables the Acoustic management function.
X ' CC ' Enables the reverting to power-on default settings after software reset. (Note)
Disable DRQ bit shall be zero when ERR bit is one. (T13 Proposal)
There is a dummy transferring when the error occurs by Read system command
X ' DF '
of PIO.
Note: It does not actually function only by displaying Identify Device.
Note: Although there is a response to the command, nothing is done.
At power-on, the default mode is set as follows:
Write cache function
Transfer mode
Advanced power
management function
Acoustic
management function
Read cache function
At power-on or COMRESET, the default mode of Serial ATA function is set as
follows:
DMA Setup FIS Auto-Activate optimization
Device-initiated interface power state Transitions
Software Settings Preservation
C141-E244
Drive operation mode
: Enabled
: PIO Mode-4, Multiworld DMA Mode-2
: Enabled (Mode-1)
: State keeping
: Enabled
: Disabled
: Disabled
: Enabled
5.3 Host Commands
5-119