IBM DTLA-305040 Hard Drive Specifications - Page 51
Host Terminating Write DMA, HSTROBE, DDMARDY, DMACK, DMARQ, DD15:00, Host drives DD
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Page 51 highlights
7.2.4.8 Host Terminating Write DMA DMARQ DMACKSTOP DDMARDYHSTROBE DD(15:00) tLI tMLI tSS tACK tLI tIORDYZ tLI tACK tDS tDH xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Host drives DD Figure 40. Ultra DMA cycle timing chart (Host Terminating Write) tSS tLI tMLI tDS tDH tACK tIORDYZ PARAMETER DESCRIPTION MODE0 MODE1 MODE2 MODE3 MODE4 MODE5 (all values in ns) MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX Time from strobe to stop assertion 50 - 50 - 50 - 50 - 50 - 50 - Limited interlock time 0 150 0 150 0 150 0 100 0 100 0 75 Interlock time 20 - 20 - 20 - 20 - 20 - 20 - Data setup time (at device side) 15 - 10 - 7 - 7 - 5 - 4.0 - Data hold time (at device side) 5 - 5 - 5 - 5 - 5 - 4.6 - Hold time after -DMACK negation 20 - 20 - 20 - 20 - 20 - 20 - Pull-up time before DSTROBE release - 20 - 20 - 20 - 20 - 20 - 20 Figure 41. Ultra DMA cycle timings (Host Terminating Write) Deskstar 40GV & 75GXP hard disk drive specifications 39
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