IBM DTLA-305040 Hard Drive Specifications - Page 41
PIO timings, IOCS16, Read data, DD0-15, CS0-, CS1, DA0-2, Write data, IORDY
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7.2.2 PIO timings The PIO cycle timings meet Mode 4 of the ATA/ATAPI-4 description. CS0-,CS1DA0-2 DIOR-, DIOWWrite data DD0-15 Read data DD0-15 IOCS16-(*) IORDY t1 t7(*) t10 Figure 22. PIO cycle time chart t9 t0 t2 t2i t3 t4 t5 t6 t8(*) t11 (*) Up to ATA-2 (mode-0,1,2) t0 t1 t2 t2i t3 t4 t5 t6 t7(*) t8(*) t9 t10 t11 PARAMETER DESCRIPTION Cycle time CS0- CS1-, DA00-02 valid to DIOR-, DIOW- active DIOR-, DIOW- pulse width DIOR-, DIOW- recovery DD00-15 setup to DIOW- high DIOW- high to DD00-15 hold DD0-15 setup to DIOR- high DIOR- high to DD0-15 hold CS0-, CS1-, DA0-02 valid to IOCS16- assertion CS0-, CS1-, DA0-02 invalid to IOCS16- negation DIOR-, DIOW- high to CS0-, CS1-, DA0-2 hold DIOR-, DIOW- low to IORDY low IORDY pulse width MIN (ns) 120 25 70 25 20 10 20 5 - - 10 - - MAX (ns) 40 30 35 1250 Figure 23. PIO cycle timings Deskstar 40GV & 75GXP hard disk drive specifications 29