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CDP1802A Datasheet(PDF) 10 Page - Intersil Corporation |
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CDP1802A Datasheet(HTML) 10 Page - Intersil Corporation |
10 / 28 page 3-12 NOTES: 1. This timing diagram is used to show signal relationships only and does not represent any specific machine cycle. 2. All measurements are referenced to 50% point of the waveforms. 3. Shaded areas indicate “Don’t Care” or undefined state. Multiple transitions may occur during this period. FIGURE 4. TIMING WAVEFORM Timing Waveforms (Continued) CLOCK TPA TPB MEMORY MRD MWR (I/O EXECUTION Q DATA FROM DMA INTERRUPT EF 1-4 WAIT CLEAR REQUEST REQUEST BUS TO CPU N0, N1, N2 STATE DATA FROM CPU TO BUS (MEMORY WRITE CYCLE) (MEMORY ADDRESS READ CYCLE) CODES CYCLE) tW 00 10 20 30 40 50 60 70 00 01 11 21 31 41 51 61 71 01 0 1 2 3 4 5 6 7 0 tPLH tPHL tPLH tPHL tPLH, tPHL tSU DMA SAMPLED (S1, S2, S3) tH ADDRESS BYTE HIGH ORDER tPHL tPLH tSU tPLH, tPHL tPLH, tPHL tPLH tH tPLH tH tPLH, tPHL tPLH, tPHL tPLH, tPHL ADDRESS BYTE LOW ORDER tPHL tPLH tPHL tPLH tPHL tPLH tPLH DATA LATCHED IN CPU tSU tH tSU tH tSU tH INTERRUPT SAMPLED (S1, S2) FLAG LINES SAMPLED (IN S1) ANY NEGATIVE TRANSITION tSU tW tSU tH CDP1802A, CDP1802AC, CDP1802BC |
Similar Part No. - CDP1802A_1 |
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Similar Description - CDP1802A_1 |
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