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ST10F268 датащи(PDF) 31 Page - STMicroelectronics |
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ST10F268 датащи(HTML) 31 Page - STMicroelectronics |
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31 / 74 page ![]() ST10F168 31/74 11 - PWM MODULE The pulse width modulation module can generate up to four PWM output signals using edge-aligned or centre-aligned PWM. In addition, the PWM module can generate PWM burst signals and sin- gle shot outputs. The Table 16 shows the PWM frequencies for different resolutions. The level of the output signals is selectable and the PWM module can generate interrupt requests. Table 16 : PWM unit frequencies and resolution at 25MHz CPU clock Mode 0 Resolution 8-bit 10-bit 12-bit 14-bit 16-bit CPU Clock / 1 40ns 97.66KHz 24.41KHz 6.104KHz 1.526KHz 0.381Hz CPU Clock / 64 2.56 µs 1.526KHz 381.5Hz 95.37Hz 23.84Hz 5.96Hz Mode 1 Resolution 8-bit 10-bit 12-bit 14-bit 16-bit CPU Clock / 1 40ns 48.82KHz 12.20KHz 3.05KHz 762.9Hz 190.7Hz CPU Clock / 64 2.56 µs 762.9Hz 190.7Hz 47.68Hz 11.92Hz 2.98Hz Figure 8 : PWM Module Block Diagram PPx Period Register Comparator PTx 16-Bit Up/Down Counter Shadow Register PWx Pulse Width Register Input Run Control Clock 1 Clock 2 Comparator * * * Up/Down/ Clear Control Match Output Control Match Write Control * User readable & writeable register Enable POUTx |
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