Fujitsu MHT2040BH User Manual

C141-E203-01EN 6-13 

(3)  Invalidating caching-target data 

Data that is a target of caching on the data buffer is invalidated under the 
following conditions: 

1)-1 Any command other than the following commands is issued. (All caching-

target data is invalidated.) 

READ LONG 

READ BUFFER 

WRITE LONG 

WRITE BUFFER 

RECALIBRATE 

FORMAT TRACK 

SET FEATURES 

SECURITY ERASE UNIT 

DEVICE CONFIGURATION 

DOWNLOAD MICROCODE 

UNSUPPORT COMMAND (INVALID COMMAND) 

1)-2 Commands that partially invalidate caching data 

READ DMA/READ MULTIPLE/READ SECTOR(S) 

READ DMA EXT/READ MULTIPLE EXT/READ SECTOR(S) EXT 

READ FP DMA QUEUED 

WRITE DMA/WRITE MULTIPLE/WRITE SECTOR(S) 

WRITE DMA EXT/WRITE MULTIPLE EXT/WRITE SECTOR(S) EXT 

WRITE DMA FUA EXT/WRITE MULTIPLE FUA EXT 

WRITE FP DMA QUEUED 

SMART 

2)  A COMRESET is issued or the power is turned off. 

3)  When HOST CRC ERROR has occurred.