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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F628-20/SS датащи(PDF) 63 Page - Microchip Technology |
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PIC16F628-20/SS датащи(HTML) 63 Page - Microchip Technology |
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63 / 160 page  PIC16F62X © 1999 Microchip Technology Inc. Preliminary DS40300B-page 63 10.0 CAPTURE/COMPARE/PWM (CCP) MODULE The CCP (Capture/Compare/PWM) module contains a 16-bit register which can operate as a 16-bit capture register, as a 16-bit compare register or as a PWM master/slave Duty Cycle register. Table 10-1 shows the timer resources of the CCP module modes. CCP1 Module Capture/Compare/PWM Register1 (CCPR1) is com- prised of two 8-bit registers: CCPR1L (low byte) and CCPR1H (high byte). The CCP1CON register controls the operation of CCP1. All are readable and writable. Additional information on the CCP module is available in the PICmicro™ Mid-Range Reference Manual, (DS33023). TABLE 10-1 CCP MODE - TIMER RESOURCE REGISTER 10-1: CCP1CON REGISTER (ADDRESS 17h) CCP Mode Timer Resource Capture Compare PWM Timer1 Timer1 Timer2 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — — CCP1X CCP1Y CCP1M3 CCP1M2 CCP1M1 CCP1M0 R = Readable bit W = Writable bit U = Unimplemented bit, read as ’0’ -n = Value at POR reset bit7 bit0 bit 7-6: Unimplemented: Read as '0' bit 5-4: CCP1X:CCP1Y: PWM Least Significant bits Capture Mode: Unused Compare Mode: Unused PWM Mode: These bits are the two LSbs of the PWM duty cycle. The eight MSbs are found in CCPRxL. bit 3-0: CCP1M3:CCP1M0: CCPx Mode Select bits 0000 = Capture/Compare/PWM off (resets CCP1 module) 0100 = Capture mode, every falling edge 0101 = Capture mode, every rising edge 0110 = Capture mode, every 4th rising edge 0111 = Capture mode, every 16th rising edge 1000 = Compare mode, set output on match (CCP1IF bit is set) 1001 = Compare mode, clear output on match (CCP1IF bit is set) 1010 = Compare mode, generate software interrupt on match (CCP1IF bit is set, CCP1 pin is unaffected) 1011 = Compare mode, trigger special event (CCP1IF bit is set; CCP1 resets TMR1 11xx = PWM mode |
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