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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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PFS154 데이터시트(PDF) 53 Page - PADAUK Technology. |
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PFS154 데이터시트(HTML) 53 Page - PADAUK Technology. |
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53 / 91 page  PFS154 8bit MTP Type IO Controller ©Copyright 2020, PADAUK Technology Co. Ltd Page 53 of 91 PDK-DS-PFS154_CN_V105 –Jun. 9, 2020 5.14. 11-bit PWM generation Three 11-bit hardware PWM generators (PWMG0, PWMG1 & PWMG2) are implemented in the PFS154. PWMG0 is used as the example to describe its functions due to all of them are almost the same. Their individual outputs are listed as below: PWMG0 – PA0, PB4, PB5 PWMG1 – PA4, PB6, PB7 PWMG2 – PA3, PB2, PB3, PA5 (Note: PA5 open drain output only, users need to enable the internal pull-high resistor or add an external pull-high resistor when using, and ICE does not support PA5 PWM function.) 5.14.1 PWM Waveform A PWM output waveform (Fig. 16) has a time-base (TPeriod = Time of Period) and a time with output high level (Duty Cycle). The frequency of the PWM output is the inverse of the period (fPWM = 1/TPeriod), the resolution of the PWM is the clock count numbers for one period (N bits resolution, 2 N × T clock = TPeriod). Fig. 16: PWM Output Waveform Period Duty Cycle ‧‧‧‧‧‧‧ clock N bit resolution |
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