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PIC18LF4520E/SPQTP 数据表(PDF) 153 Page - Microchip Technology |
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PIC18LF4520E/SPQTP 数据表(HTML) 153 Page - Microchip Technology |
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153 / 390 page  2004 Microchip Technology Inc. Preliminary DS39631A-page 151 PIC18F2420/2520/4420/4520 FIGURE 16-2: PWM OUTPUT RELATIONSHIPS (ACTIVE-HIGH STATE) FIGURE 16-3: PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE) 0 Period 00 10 01 11 SIGNAL PR2 + 1 CCP1CON <7:6> P1A Modulated P1A Modulated P1B Modulated P1A Active P1B Inactive P1C Inactive P1D Modulated P1A Inactive P1B Modulated P1C Active P1D Inactive Duty Cycle (Single Output) (Half-Bridge) (Full-Bridge, Forward) (Full-Bridge, Reverse) Delay(1) Delay(1) 0 Period 00 10 01 11 SIGNAL PR2 + 1 CCP1CON <7:6> P1A Modulated P1A Modulated P1B Modulated P1A Active P1B Inactive P1C Inactive P1D Modulated P1A Inactive P1B Modulated P1C Active P1D Inactive Duty Cycle (Single Output) (Half-Bridge) (Full-Bridge, Forward) (Full-Bridge, Reverse) Delay(1) Delay(1) Relationships: • Period = 4 * TOSC * (PR2 + 1) * (TMR2 Prescale Value) • Duty Cycle = TOSC * (CCPR1L<7:0>:CCP1CON<5:4>) * (TMR2 Prescale Value) • Delay = 4 * TOSC * (PWM1CON<6:0>) Note 1: Dead-band delay is programmed using the PWM1CON register (see Section 16.4.6 “Programmable Dead-Band Delay”). |
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