Extract Chip PIC16F747 Code out from its memory after locate the security fuse bit inside the Microcontroller PIC16F747 and break it off, the process needs to disable the tamper resistance system;

The clock input to the Timer2 module is the system instruction clock (FOSC/4). The clock is fed into the Timer2 prescaler, which has prescale options of 1:1, 1:4 or 1:16. The output of the prescaler is then used to increment the TMR2 register when chip PIC16F676 eeprom content reading.

The values of TMR2 and PR2 are constantly compared to determine when they match. TMR2 will increment from 00h until it matches the value in PR2. When a match occurs, two things happen:

• TMR2 is reset to 00h on the next increment cycle.
• The Timer2 postscaler is incremented

The match output of the Timer2/PR2 comparator is fed into the Timer2 postscaler. The postscaler has postscale options of 1:1 to 1:16 inclusive. The output of the Timer2 postscaler is used to set the TMR2IF interrupt flag bit in the PIR1 register before ic pic16lf631 heximal copying.

The TMR2 and PR2 registers are both fully readable and writable. On any Reset, the TMR2 register is set to 00h and the PR2 register is set to FFh.

Timer2 is turned on by setting the TMR2ON bit in the T2CON register to a ‘1’. Timer2 is turned off by clearing the TMR2ON bit to a ‘0’. The Timer2 prescaler is controlled by the T2CKPS bits in the T2CON register. The Timer2 postscaler is controlled by the TOUTPS bits in the T2CON register when microprocessor pic16f639 program extraction.

The prescaler and postscaler counters are cleared when:

Comparators are used to interface analog circuits to a digital circuit by comparing two analog voltages and providing a digital indication of their relative magnitudes.

The comparators are very useful mixed signal building blocks because they provide analog functionality independent of program execution. The Analog Comparator module includes the following features before mcu pic16f737 firmware reading:

Independent comparator control

Programmable input selection

Comparator output is available internally/externally

Programmable output polarity

Interrupt-on-change

Wake-up from Sleep

PWM shutdown

Timer1 gate (count enable)

Output synchronization to Timer1 clock input

SR Latch

Programmable and fixed voltage reference