IBM DJSA-210 Hard Drive Specifications - Page 70
Host Terminating Write DMA, HSTROBE, DDMARDY, DMACK, DMARQ, DD15:0, Host drives DD, tIORDYZ
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7.9.3 Host Terminating Write DMA DMARQ DMACKSTOP DDMARDYHSTROBE DD(15:0) tLI tSS tLI tMLI tIORDYZ tACK tLI tACK tDH tDS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Host drives DD tSS tLI tMLI tDS tDH tACK tIORDYZ PARAMETER DESCRIPTION Time from HSTROBE edge to assertion of STOP Limited interlock time Interlock time with minimum CRC word setup time at device CRC word hold time at device Hold time for DMACKMaximum time before releasing IORDY MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) (ns) 50 - 50 - 50 - 50 - 50 - 0 150 0 150 0 150 0 100 0 100 20 - 20 - 20 - 20 - 20 - 15 - 10 - 7 - 7 - 5 - 5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 Figure 45. Ultra DMA cycle timings (Host Terminating Write) Travelstar 32GH/30GT/20GN hard disk drive specifications 56