Hitachi HTS541040G9AT00 Specifications - Page 61
Ultra DMA timings - 0 driver
UPC - 000059826569
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7.9 Ultra DMA timings The Ultra DMA timings meet Mode 0, 1, 2, 3, 4 and 5 of the Ultra DMA Protocol. 7.9.1 Initiating Read DMA DMARQ DMACKSTOP HDMARDY- tUI tACK tENV tACK tENV tZIORDY DSTROBE tAZ DD(15:0) xxxxxxxxxxxxxxxxxxxxxxxxxxx Host drives DD t2CYC tFS tCYC tCYC tZAD tDS tDH xxx RD Data xxxx RD Data xxx RD Data Device drives DD Table 29: Ultra DMA cycle timings (Initiating Read) PARAMETER DESCRIPTION MODE 0 MIN MAX (ns) (ns) tUI Unlimited interlock time 0 - tACK Setup time for DMACK- 20 - tENV Envelope time 20 70 tZIORDY Minimum time before driv- 0 - ing IORDY tFS First DSTROBE time 0 230 tCYC Cycle time 112 - t2CYC Two cycle time 230 - tAZ Maximum time allowed for - 10 output drivers to release tZAD Drivers to assert 0 - tDS Data setup time at host 15 - tDH Data hold time at host 5 - MODE 1 MIN MAX (ns) (ns) 0 - 20 - 20 70 0 - 0 200 73 - 154 - - 10 0 - 10 - 5 - MODE 2 MIN MAX (ns) (ns) 0 - 20 - 20 70 0 - 0 170 54 - 115 - - 10 0 - 7 - 5 - MODE 3 MIN MAX (ns) (ns) 0 - 20 - 20 55 0 - 0 130 39 - 86 - - 10 0 - 7 - 5 - MODE 4 MIN MAX (ns) (ns) 0 - 20 - 20 55 0 - 0 120 25 - 57 - - 10 0 - 5 - 5 - MODE 5 MIN MAX (ns) (ns) 0 - 20 - 20 50 0 - 0 90 16.8 - 38 - - 10 0 - 4 - 4.6 - Travelstar 5K100 Hard Disk Drive Specification 47