Fujitsu MHN2100AT, MHN2150AT manual Features register values and settable modes, ’Aa’, ’Bb’, ’Cc’

5.3 Host Commands

	Table 5.5 Features register values and settable modes
Features		Drive operation mode
Register
X’02’		Enables the write cache function.
X’03’		Set the data transfer mode. *1
X’05’		Enables the advanced power management function. *2
X’42’		Enables the Acoustic management function. *3
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’85’		Disables the advanced power management 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’C2’		Disables the Acoustic management function.
X’CC’		Enables the reverting to power-on default settings after software reset.

At power-on or after hardware reset, 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	: Disabled (Standard Seek)
Read cashe function	: Enabled
Default setting
after software reset	: Disabled

C141-E120-02EN 5-41