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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CDP1802BCEX датащи(PDF) 11 Page - Intersil Corporation |
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CDP1802BCEX датащи(HTML) 11 Page - Intersil Corporation |
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11 / 27 page  3-13 Machine Cycle Timing Waveforms (Propagation Delays Not Shown) FIGURE 5. GENERAL TIMING WAVEFORMS FIGURE 6. NON-MEMORY CYCLE TIMING WAVEFORMS FIGURE 7. MEMORY WRITE CYCLE TIMING WAVEFORMS CLOCK TPA TPB MACHINE MA CYCLE 01 2 3 45 6 7 01 2 3 45 6 701 2 3 45 6 7 0 CYCLE n CYCLE (n + 1) CYCLE (n + 2) LOW ADDRESS HIGH ADD LOW ADDRESS HIGH ADD LOW ADDRESS HIGH ADD MEMORY READ CYCLE NON MEMORY CYCLE MEMORY READ CYCLE INSTRUCTION MRD MWR (HIGH) MEMORY OUTPUT FETCH (S0) EXECUTE (S1) FETCH (S0) EXECUTE ALLOWABLE MEMORY ACCESS VALID OUTPUT VALID OUTPUT “DON’T CARE” OR INTERNAL DELAYS HIGH IMPEDANCE STATE MEMORY OUTPUT ALLOWABLE MEMORY ACCESS VALID OUTPUT VALID OUTPUT MEMORY READ CYCLE MEMORY WRITE CYCLE MEMORY READ CYCLE INSTRUCTION FETCH (S0) EXECUTE (S1) FETCH (S0) EXECUTE CPU OUTPUT OFF VALID DATA OFF VALID MWR MRD TO MEMORY “DON’T CARE” OR INTERNAL DELAYS HIGH IMPEDANCE STATE CDP1802A, CDP1802AC, CDP1802BC |
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