Hitachi 7K400 Specifications - Page 56
Host Terminating Write DMA
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6.8.8 Host Terminating Write DMA Table 40: Ultra DMA cycle timing chart (Host Terminating Write) DMARQ DMACKSTOP tLI tSS tLI tMLI tIORDYZ tACK DDMARDYHSTROBE DD(15:0) tLI tACK tCH tCS xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx CRC xxxxxxxxxx Host drives DD Table 41: Ultra DMA cycle timings (Host Terminating Write) tSS tLI tMLI tCS tCH tACK tIORDYZ PARAMETER DESCRIPTION (all values in ns) 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 DMACK- Maximum time before releasing IORDY MODE 0 MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX 50 - 50 - 50 - 50 - 50 - 50 - 0 150 0 150 0 150 0 100 0 100 0 75 20 - 20 - 20 - 20 - 20 - 20 - 15 - 10 - 7 - 7 - 5 - 5 - 5-5-5-5-5-5- 20 - 20 - 20 - 20 - 20 - 20 - - 20 - 20 - 20 - 20 - 20 - 20 Deskstar 7K400 Hard Disk Drive Specification 42
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