Fujitsu MJA2500BH Maintenance Manual - Page 277
Write Dma Ext/write Multiple Ext/write Sectors Ext
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6.4 Read-ahead Cache (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 cachingtarget data is invalidated.) READ BUFFER WRITE BUFFER RECALIBRATE FORMAT TRACK SET FEATURES SECURITY ERASE UNIT DEVICE CONFIGURATION DOWNLOAD MICROCODE WRITE UNCORRECTABLE EXT READ LOG (DMA) EXT WRITE LOG (DMA) EXT 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. C141-E293 6-15