IBM DTCA-24090 Hard Drive Specifications - Page 56
Initiating Write DMA
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6.5.3.5 Initiating Write DMA DMARQ DMACK STOP DDMARDY HSTROBE DB(15:00) < Tui > Tzrdy > < < Tli > < Tui < > < T2cyc > Tcyc > < Tcyc > Tds < > < > Tdh XXXXXXXXXXXXXXXXXXXXXXXXXX WT Data XXX WT Data XXX WT Data < Host drives DB > PARAMETER DESCRIPTION Tui Unlimited interlock time Tack Setup time before DMACK assertion Tenv Envelope time | Tzrdy Wait time before driving DDMARDY Tli Limited interlock time Tcyc Cycle Time T2cyc 2 Cycle time Tds Data setup time (at device side) Tdh Data Hold time (at device side) Figure 31. Ultra D M A cycle timings (Initiating Write) [nsec] MODE0 MODE1 MODE2 MIN MAX MIN MAX MIN MAX 0 0 0 20 20 20 20 70 20 70 20 70 0 0 0 0 150 0 150 0 150 114 75 55 235 156 117 15 10 7 5 5 5 48 OEM Specifications of DTCA-2xxxx 2.5 inch H D D