IBM IC35L020 Hard Drive Specifications - Page 53
Host Terminating Write DMA, HSTROBE, DDMARDY, DMACK, DMARQ, DD00-DD15, Host drives DD
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9.1.7.8 Host Terminating Write DMA DMARQ DMACKSTOP DDMARDYHSTROBE DD00-DD15 tLI tMLI tSS tACK tLI tIORDYZ tLI tACK tCS tCH xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Host drives DD Signal names tSS tLI tMLI tCS tCH tACK tIORDYZ MODE0 MODE1 MODE2 MODE3 MODE4 MODE5 Parameter descriptions 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 - CRC word setup time (at device side) 15 - 10 - 7 - 7 - 5 - 4 - CRC word hold time (at device side) 5 - 5 - 5 - 5 - 5 - 5 - Hold time after -DMACK negation 20 - 20 - 20 - 20 - 20 - 20 - Pull-up time before HSTOROBE release - 20 - 20 - 20 - 20 - 20 - 20 (all values are in ns) Figure 34. Ultra DMA cycle timings-Host terminating Write Deskstar 60 GXP Hard disk drive specification 39