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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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MPC852T Fiches technique(PDF) 45 Page - Freescale Semiconductor, Inc |
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MPC852T Fiches technique(HTML) 45 Page - Freescale Semiconductor, Inc |
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45 / 80 page  MPC852T PowerQUICC™ Hardware Specifications, Rev. 4 Freescale Semiconductor 45 CPM Electrical Characteristics 14.2 IDMA Controller AC Electrical Specifications Table 17 provides the IDMA controller timings as shown in Figure 41 through Figure 44. Figure 41. IDMA External Requests Timing Diagram Table 17. IDMA Controller Timing Num Characteristic All Frequencies Unit Min Max 40 DREQ setup time to clock high 7 — ns 41 DREQ hold time from clock high 1 1 Applies to high-to-low mode (EDM = 1). 3— ns 42 SDACK assertion delay from clock high — 12 ns 43 SDACK negation delay from clock low — 12 ns 44 SDACK negation delay from TA low — 20 ns 45 SDACK negation delay from clock high — 15 ns 46 TA assertion to rising edge of the clock setup time (applies to external TA)7 — ns 41 40 DREQ (Input) CLKO (Output) |
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