Extract MCU PIC16LF747 Code from the memory, it is a process of microcontroller breaking which will need to open the top cover of Microocntroller PIC16LF747 and then find out its security fuse bit;

In Capture mode, CCPR1H:CCPR1L captures the 16-bit value of the TMR1 register when an event occurs on pin CCP1. An event is defined as one of the following and is configured by the CCP1M<3:0> bits of the CCP1CON register:

• Every falling edge
• Every rising edge
• Every 4th rising edge
  Every 16th rising edge

   

  When a capture is made, the Interrupt Request Flag bit CCP1IF of the PIR1 register is set. The interrupt flag must be cleared in software. If another capture occurs before the value in the CCPR1H, CCPR1L register pair is read, the old captured value is overwritten by the new captured value if microcontroller atmega640 software reading.

In Capture mode, the CCP1 pin should be configured as an input by setting the associated TRIS control bit. Timer1 must be running in Timer mode or Synchronized Counter mode for the CCP module to use the capture feature. In Asynchronous Counter mode, the capture operation may not work before mcu chip atmega640v flash reading.

When the Capture mode is changed, a false capture interrupt may be generated. The user should keep the CCP1IE interrupt enable bit of the PIE1 register clear to avoid false interrupts. Additionally, the user should clear the CCP1IF interrupt flag bit of the PIR1 register following any change in operating mode after ic atmega1280 eeprom content reading.

There are four prescaler settings specified by the CCP1M<3:0> bits of the CCP1CON register. Whenever the CCP module is turned off, or the CCP module is not in Capture mode, the prescaler counter is cleared. Any Reset will clear the prescaler counter. Switching from one capture prescaler to another does not clear the prescaler and may generate a false interrupt.

To avoid this unexpected operation, turn the module off by clearing the CCP1CON register before changing the prescaler. In Compare mode, the 16-bit CCPR1 register value is constantly compared against the TMR1 register pair value. When a match occurs, the CCP module may:

• Toggle the CCP1 output
  Set the CCP1 output

   

  Clear the CCP1 output

  Generate a Special Event Trigger

  Generate a Software Interrupt

The action on the pin is based on the value of the CCP1M<3:0> control bits of the CCP1CON register. All Compare modes can generate an interrupt.  The user must configure the CCP1 pin as an output by clearing the associated TRIS bit after chip atmega2560v firmware reading.

In Compare mode, Timer1 must be running in either Timer mode or Synchronized Counter mode. The compare operation may not work in Asynchronous Counter mode. When Generate Software Interrupt mode is chosen (CCP1M<3:0> = 1010), the CCP module does not assert control of the CCP1 pin (see the CCP1CON register).