Fujitsu MHU2100AT Product Manual page 252

Operations
1)-1 Any command other than the following commands is issued. (All caching-
target data is invalidated.)
RECALIBRATE
READ LONG
WRITE LONG
IDLE IMMEDIATE
DOWNLOAD MICROCODE
DEVICE CONFIGURATION
READ BUFFER
WRITE BUFFER
SET FEATURES
SECURITY ERASE UNIT
READ LOG EXT
WRITE LOG EXT
UNSUPPORT COMMAND (INVALID COMMAND)
1)-2 Commands that partially invalidate caching data
(When data in the buffer or on media is overwritten, the overwritten data is
invalidated.)
READ DMA / READ MULTIPLE / READ SECTOR (s)
READ DMA EXT / READ MULTIPLE EXT / READ SECTOR (s) EXT
WRITE DMA / WRITE MULTIPLE / WRITE SECTOR(s)
WRITE DMA EXT / WRITE MULTIPLE EXT / WRITE SECTOR (s) EXT
SMART
2) A hard reset is issued or the power is turned off.
3) When ICRC (Interface CRC) Error has occurred.
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