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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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H8SX/1663M датащи(PDF) 799 Page - Renesas Technology Corp |
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H8SX/1663M датащи(HTML) 799 Page - Renesas Technology Corp |
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799 / 1504 page  Section 14 16-Bit Timer Pulse Unit (TPU) Rev. 2.00 Sep. 24, 2008 Page 767 of 1468 REJ09B0412-0200 14.10 Usage Notes 14.10.1 Module Stop Function Setting Operation of the TPU can be disabled or enabled using the module stop control register. The initial setting is for operation of the TPU to be halted. Register access is enabled by clearing module stop state. For details, see section 28, Power-Down Modes. 14.10.2 Input Clock Restrictions The input clock pulse width must be at least 1.5 states in the case of single-edge detection, and at least 2.5 states in the case of both-edge detection. The TPU will not operate properly with a narrower pulse width. In phase counting mode, the phase difference and overlap between the two input clocks must be at least 1.5 states, and the pulse width must be at least 2.5 states. Figure 14.46 shows the input clock conditions in phase counting mode. TCLKA (TCLKC) TCLKB (TCLKD) Overlap Phase difference Pulse width Note: Phase difference, Overlap ≥ 1.5 states Pulse width ≥ 2.5 states Pulse width Phase difference Overlap Pulse width Pulse width Figure 14.46 Phase Difference, Overlap, and Pulse Width in Phase Counting Mode |
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