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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8SX/1663R 数据表(PDF) 783 Page - Renesas Technology Corp |
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H8SX/1663R 数据表(HTML) 783 Page - Renesas Technology Corp |
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783 / 1504 page  Section 14 16-Bit Timer Pulse Unit (TPU) Rev. 2.00 Sep. 24, 2008 Page 751 of 1468 REJ09B0412-0200 (2) Examples of Phase Counting Mode Operation In phase counting mode, TCNT counts up or down according to the phase difference between two external clocks. There are four modes, according to the count conditions. (a) Phase counting mode 1 Figure 14.26 shows an example of phase counting mode 1 operation, and table 14.34 summarizes the TCNT up/down-count conditions. TCNT value Time Down-count Up-count TCLKA (channels 1 and 5) TCLKC (channels 2 and 4) TCLKB (channels 1 and 5) TCLKD (channels 2 and 4) Figure 14.26 Example of Phase Counting Mode 1 Operation Table 14.34 Up/Down-Count Conditions in Phase Counting Mode 1 TCLKA (Channels 1 and 5) TCLKC (Channels 2 and 4) TCLKB (Channels 1 and 5) TCLKD (Channels 2 and 4) Operation High level Low level Low level High level Up-count High level Low level High level Low level Down-count [Legend] : Rising edge : Falling edge |
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