IBM IC35L040AVVN07-0 Hard Drive Specifications - Page 43
Multiword DMA timings
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6.2.3 Multiword DMA timings The Multiword DMA timing meets Mode 2 of the ATA/ATAPI-6 description. CS0-/CS1- tM DMARQ DMACKDIOR-/DIOWREAD DATA WRITE DATA t0 tI tD tE tG tF tG tH Figure 25. Multiword DMA cycle timing chart tN tLR/tLW tJ tKR/tKW tZ t0 tD tE tF tG tH tI tJ tKR/tKW tLR/tLW tM tN tZ PARAMETER DESCRIPTION Cycle time DIOR-/DIOW- asserted pulse width DIOR- data access DIOR- data hold DIOR-/DIOW- data setup DIOW- data hold DMACK- to -DIOR-/DIOW- setup DIOR-/DIOW- to DMACK- hold DIOR-/DIOW- negated pulse width DIOR-/DIOW- to DMARQ- delay CS (1:0) valid to DIOR-/DIOW- CS (1:0) hold DMACK- to read data released Figure 26. Multiword DMA cycle timings MIN (ns) 120 70 - 5 20 10 0 5 25 - 25 10 - MAX (ns) - - 50 35 - - 25 Deskstar 120GXP hard disk drive specifications 29