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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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INTEDG датащи(PDF) 235 Page - Microchip Technology |
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INTEDG датащи(HTML) 235 Page - Microchip Technology |
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235 / 478 page  2010-2012 Microchip Technology Inc. DS41414D-page 235 PIC16(L)F1946/47 23.4.6 PWM STEERING MODE In Single Output mode, PWM steering allows any of the PWM pins to be the modulated signal. Additionally, the same PWM signal can be simultaneously available on multiple pins. Once the Single Output mode is selected (CCPxM<3:2> = 11 and PxM<1:0> = 00 of the CCPxCON register), the user firmware can bring out the same PWM signal to one, two, three or four output pins by setting the appropriate STRx<D:A> bits of the PSTRxCON register, as shown in Table 23-9. While the PWM Steering mode is active, CCPxM<1:0> bits of the CCPxCON register select the PWM output polarity for the Px<D:A> pins. The PWM auto-shutdown operation also applies to PWM Steering mode as described in Section 23.4.3 “Enhanced PWM Auto-shutdown mode”. An auto-shutdown event will only affect pins that have PWM outputs enabled. FIGURE 23-18: SIMPLIFIED STEERING BLOCK DIAGRAM Note: The associated TRIS bits must be set to output (‘0’) to enable the pin output driver in order to see the PWM signal on the pin. 1 0 TRIS PxA pin PORT Data PxA Signal STRxA 1 0 TRIS PxB pin PORT Data STRxB 1 0 TRIS PxC pin PORT Data STRxC 1 0 TRIS PxD pin PORT Data STRxD Note 1: Port outputs are configured as shown when the CCPxCON register bits PxM<1:0> = 00 and CCPxM<3:2> = 11. 2: Single PWM output requires setting at least one of the STRx bits. CCPxM1 CCPxM0 CCPxM1 CCPxM0 |
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