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MPC5200 датащи(PDF) 36 Page - Freescale Semiconductor, Inc |
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MPC5200 датащи(HTML) 36 Page - Freescale Semiconductor, Inc |
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36 / 80 page ![]() MPC5200 Data Sheet, Rev. 4 Electrical and Thermal Characteristics Freescale Semiconductor 36 Figure 16. Multiword DMA Timing Table 29. Ultra DMA Timing Specification Name MODE 0 (ns) MODE 1 (ns) MODE 2 (ns) Comment SpecID Min Max Min Max Min Max (t)2CYC 240 — 160 — 120 — Typical sustained average two cycle time. For information only, do not test. A8.26 (t)CYC 114 — 75 — 55 — Cycle time allowing for asymmetry and clock variations from STROBE edge to STROBE edge A8.27 (t)2CYC 235 — 156 — 117 — Two-cycle time allowing for clock variations, from rising edge to next rising edge or from falling edge to next falling edge of STROBE. A8.28 (t)DS 15 — 10 — 7 — Data setup time at recipient. A8.29 (t)DH 5—5—5— Data hold time at recipient. A8.30 (t)DVS 70 — 48 — 34 — Data valid setup time at sender, to STROBE edge. A8.31 (t)DVH 6 — 6 — 6 — Data valid hold time at sender, from STROBE edge. A8.32 (t)FS 0 230 0 200 0 170 First STROBE time for drive to first negate DSTROBE from STOP during a data-in burst. A8.33 t0 tC tE tI tD tF tS tH tG tJ DMARQ RDATA WDATA (Drive) (Host) (Host) (Drive) (Host) tL tK NOTE: The directionof signalassertionis towardsthe top of the page, and the direction of negation is towards the bottom of the page, irrespective of the electrical properties of the signal. DMACK DIOR DIOW |
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