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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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H8SX/1663R Datenblatt(PDF) 833 Page - Renesas Technology Corp |
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H8SX/1663R Datenblatt(HTML) 833 Page - Renesas Technology Corp |
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833 / 1504 page  Section 15 Programmable Pulse Generator (PPG) Rev. 2.00 Sep. 24, 2008 Page 801 of 1468 REJ09B0412-0200 15.4.4 Non-Overlapping Pulse Output During non-overlapping operation, transfer from NDR to PODR is performed as follows: • At compare match A, the NDR bits are always transferred to PODR. • At compare match B, the NDR bits are transferred only if their value is 0. The NDR bits are not transferred if their value is 1. Figure 15.8 illustrates the non-overlapping pulse output operation. Compare match A Compare match B Pulse output pin Internal data bus Normal output/inverted output C PODR QD NDER Q NDR QD Figure 15.8 Non-Overlapping Pulse Output Therefore, 0 data can be transferred ahead of 1 data by making compare match B occur before compare match A. The NDR contents should not be altered during the interval from compare match B to compare match A (the non-overlapping margin). This can be accomplished by having the TGIA interrupt handling routine write the next data in NDR, or by having the TGIA interrupt activate the DTC or DMAC. Note, however, that the next data must be written before the next compare match B occurs. |
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