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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M16C/29 датащи(PDF) 160 Page - Renesas Technology Corp |
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M16C/29 датащи(HTML) 160 Page - Renesas Technology Corp |
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160 / 499 page  12. Timer (Three-phase Motor Control Timer Function) p u o r G 9 2 / C 6 1 M page 136 8 5 4 f o 7 0 0 2 , 0 3 .r a M 2 1 . 1 . v e R 2 1 1 0 - 1 0 1 0 B 9 0 J E R 12.3.1 Position-Data-Retain Function This function is used to retain the position data synchronously with the three-phase waveform output.There are three position-data input pins for U, V, and W phases. A trigger to retain the position data (hereafter, this trigger is referred to as "retain trigger") can be selected by the PDRT bit in the PDRF register. This bit selects the retain trigger to be the falling edge of each positive phase, or the rising edge of each positive phase. 12.3.1.1 Operation of the Position-data-retain Function Figure 12.35 shows a usage example of the position-data-retain function (U phase) when the retain trigger is selected as the falling edge of the positive signal. (1) At the falling edge of the U-phase waveform ouput, the state at pin IDU is transferred to the PDRU bit in the PDRF register. (2) Until the next falling edge of the Uphase waveform output,the above value is retained. Transferred Carrier wave U-phase waveform output U-phase waveform output 1 2 Transferred Transferred Transferred Pin IDU Note: Note: The retain trigger is the falling edge of the positive signal. PDRU bit Figure 12.35 Usage Example of Position-data-retain Function (U phase ) |
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