IBM DBCA-204860 Hard Drive Specifications - Page 52
Host Terminating Read DMA
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6.5.3.3 Host Terminating Read DMA < Tli > DMARQ < Tmli > DMACK < Trp > < Tack > STOP < Tack > HDMARDY < Trfs > < Tli > < > Trdyz DSTROBE Taz < > Tds < > < > Tdh DD(15:00) XXX RD Data XXXXXXXXXXXXXXXXXX XXX CRC XXXXXXXXXX Device drives DD >< Host drives DD PARAMETER DESCRIPTION Trfs Trp Tli Taz Tzah Tmli Tds Tdh Tack Trdyz Ready to final strobe time Ready to pause time Limited interlock time Output release time Output enable time Interlock time Data setup time (at device side) Data Hold time (at device side) Hold time after DMACK negation Pull up time before DSTROBE release [nsec] MODE0 MODE1 MODE2 MIN MAX MIN MAX MIN MAX 75 60 50 160 125 100 0 150 0 150 0 150 10 10 10 20 20 20 20 20 20 15 10 7 5 5 5 20 20 20 20 20 20 Figure 30. Ultra D M A cycle timings (Host terminating Read) 44 OEM Specifications of DBCA-2xxxxx 2.5 inch H D D