Attack Microchip MCU PIC18F26K22 Flash Memory and make pic18f26k22 microcontroller cloning unit after copy embedded heximal from flash memory to new MCU unit.
The IDLEN bit of the OSCCON register determines whether the device goes into Sleep mode or one of the Idle modes when the SLEEP instruction is executed.
Clock Source modes can be classified as external or internal.
- External Clock modes rely on external circuitry for the clock source. Examples are: Clock modules (EC mode), quartz crystal resonators or ceramic resonators (LP, XT and HS modes) and Resistor- Capacitor (RC mode) circuits.
- Internal clock sources are contained internally within the Oscillator block. The Oscillator block has three internal oscillators: the 16 MHz High- Frequency Internal Oscillator (HFINTOSC), 500 kHz Medium-Frequency Internal Oscillator
(MFINTOSC) and the 31.25 kHz Low-Frequency Internal Oscillator (LFINTOSC). The system clock can be selected between external or internal clock sources via the System Clock Select (SCS<1:0>) bits of the OSCCON register. See Section 2.9 “Clock Switching”for additional information by reversing pic18f25k20 mcu locked heximal.
When the oscillator module is configured for LP, XT or HS modes, the Oscillator Start-up Timer (OST) counts 1024 oscillations from OSC1. This occurs following a Power-on Reset (POR) and when the Power-up Timer (PWRT) has expired (if configured), or a wake-up from Sleep.
During this time, the program counter does not increment and program execution is suspended. The OST ensures that the oscillator circuit, using a quartz crystal resonator or ceramic resonator, has started and is providing a stable system clock to the oscillator module by duplicating microchip pic18f26k20 source code. When switching between clock sources, a delay is required to allow the new clock to stabilize.
These oscillator delays are shown in Table 2-2. In order to minimize latency between external oscillator start-up and code execution, the Two-Speed Clock Start-up mode can be selected (see Section 2.10 “Two-Speed Clock Start-up Mode”).