Hitachi 7K100 Hard Drive Specifications - Page 63
Device Terminating Write DMA
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7.9.7 Device Terminating Write DMA DMARQ DMACKSTOP DDMARDYHSTROBE DD(15:0) tRP tLI tMLI tACK tIORDYZ tRFS tLI tACK tDH tDS xxx WT Data xxxxxxxxxxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Host drives DD Table 35: Ultra DMA cycle timings (Device TerminatingWrite) tRFS tRP tLI tMLI tDS tDH tACK tIORDYZ PARAMETER DESCRIPTION DDMARDY- to final HSTROBE time Ready to pause time Limited interlock time Interlocking time with minimum CRC word setup time at device CRC word hold time at device Hold time for DMACKnegation Maximum time before releasing IORDY MODE 0 MIN MAX (ns) (ns) - 75 160 - 0 150 20 - 15 - 5 - 20 - - 20 MODE 1 MIN MAX (ns) (ns) - 70 125 - 0 150 20 - 10 - 5 - 20 - - 20 MODE 2 MIN MAX (ns) (ns) - 60 100 - 0 150 20 - 7 - 5 - 20 - - 20 MODE 3 MIN MAX (ns) (ns) - 60 100 - 0 100 20 - 7 - 5 - 20 - - 20 MODE 4 MIN MAX (ns) (ns) - 60 100 - 0 100 20 - 5 - 5 - 20 - - 20 MODE 5 MIN MAX (ns) (ns) - 50 85 - 0 75 20 - 4 - 4.6 - 20 - - 20 Travelstar 7K100 Hard Disk Drive Specification 49