Clone IC ATmega861V Code and copy the code to other blank Microcontroller ATmega861V, reverse engineering microprocessor structure to locate the security fuse bit and use focus ion beam to disable it;
A 50% duty cycle clock can be programmed to come out on P1.0, as shown in Figure 5. This pin, besides being a regular I/0 pin, has two alternate functions. It can be programmed to input the external clock for Timer/Counter 2 or to output a 50% duty cycle clock ranging from 61 Hz to 4 MHz at a 16 MHz operating frequency when PIC MCU PIC12F510 unlocking.
To configure the Timer/Counter 2 as a clock generator, bit C/T2 (T2CON.1) must be cleared and bit T2OE (T2MOD.1) must be set. Bit TR2 (T2CON.2) starts and stops the timer.
The clock-out frequency depends on the oscillator frequency and the reload value of Timer 2 capture registers (RCAP2H, RCAP2L), as shown in the following equation.
In the clock-out mode, Timer 2 rollovers will not generate an interrupt. This behavior is similar to when Timer 2 is used as a baud-rate generator. It is possible to use Timer 2 as a baud-rate generator and a clock generator simultaneously after microchip mcu pic16f72a copying.
Note, however, that the baud-rate and clock-out frequencies cannot be determined independently from one another since they both use RCAP2H and RCAP2L.
The UART in the AT89S53 operates the same way as the UART in the ATMEGA861V. For fur- ther information, see the October 1995 Microcontroller Data Book, page 2-49, section titled, “Serial Interface.”
The serial peripheral interface (SPI) allows high-speed synchronous data transfer between the ATMEGA861V and peripheral devices or between several ATMEGA861V devices before reverse engineering microchip mcu pic16f77 eeprom.
The AT89S53 SPI features include the following: