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C141-E099-01EN5 - 36
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.