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HD64F2145 Datasheet(PDF) 299 Page - Renesas Technology Corp |
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HD64F2145 Datasheet(HTML) 299 Page - Renesas Technology Corp |
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299 / 829 page  Rev. 2.0, 08/02, page 259 of 788 11.5.9 Automatic Addition Timing When the OCRAMS bit in TOCR is set to 1, the contents of OCRAR and OCRAF are automatically added to OCRA alternately, and when an OCRA compare-match occurs a write to OCRA is performed. Figure 11.14 shows the OCRA write timing. Compare-match signal OCRAR, OCRAF A OCRA N N + A FRC N N +1 ø Figure 11.14 OCRA Automatic Addition Timing 11.5.10 Mask Signal Generation Timing When the ICRDMS bit in TOCR is set to 1 and the contents of OCRDM are other than H'0000, a signal that masks the ICRD input capture signal is generated. The mask signal is set by the input capture signal. The mask signal is cleared by the sum of the ICRD contents and twice the OCRDM contents, and an FRC compare-match. Figure 11.15 shows the timing of setting the mask signal. Figure 11.16 shows the timing of clearing the mask signal. Input capture signal Input capture mask signal ø Figure 11.15 Timing of Input Capture Mask Signal Setting |
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