Extract IC ATMEGA461P Binary from its memory include flash and eeprom, break MCU protective system and dump the firmware out from its memory for a matched Microcontroller cloning;

The SPI Data Register is a read/write register used for data transfer between the Register File and the SPI Shift Register. Writing to the register initiates data transmission.

Reading the register causes the Shift Register Receive buffer to be read. There are four combinations of SCK phase and polarity with respect to serial data, which are determined by control bits CPHA and CPOL.

Data bits are shifted out and latched in on opposite edges of the SCK signal, ensuring sufficient time for data signals to stabilize. This is clearly seen by summarizing Table 94 and Table 95, as done below before Extract chip atmega8a bin:

The Universal Synchronous and Asynchronous serial Receiver and Transmitter (USART) is a highly flexible serial communication device. The main features are:

• Full Duplex Operation (Independent Serial Receive and Transmit Registers)
• Asynchronous or Synchronous Operation
• Master or Slave Clocked Synchronous Operation
• High Resolution Baud Rate Generator
• Supports Serial Frames with 5, 6, 7, 8, or 9 Data Bits and 1 or 2 Stop Bits
• Odd or Even Parity Generation and Parity Check Supported by Hardware
• Data OverRun Detection
• Framing Error Detection
• Noise Filtering Includes False Start Bit Detection and Digital Low Pass Filter
• Three Separate Interrupts on TX Complete, TX Data Register Empty and RX Complete
• Multi-processor Communication Mode
• Double Speed Asynchronous Communication ModeThe ATmega461p has four USART’s, USART0, USART1, USART2, and USART3. The functionality for all four USART’s is described below Extract IC.

  USART0, USART1, USART2, and USART3 have different I/O registers as shown in “Register Summary” on page 385.A simplified block diagram of the USART Transmitter is shown in Figure 83 on page after read microcontroller atmega16pa flash

  6. CPU accessible I/O Registers and I/O pins are shown in bold.

     The Power Reducion USART0 bit, PRUSART0, in “Power Reduction Register 0  PRR0” on page 54 must be disabled by writing a logical zero to it.

     The Power Reducion USART1 bit, PRUSART1, in “Power Reduction Register 1 – PRR1” on page 55 must be disabled by writing a logical zero to it.

     The Power Reducion USART2 bit, PRUSART2, in “Power Reduction Register 1 – PRR1” on page 55 must be disabled by writing a logical zero to it.

     The Power Reducion USART3 bit, PRUSART3, in “Power Reduction Register 1 – PRR1” on page 55 must be disabled by writing a logical zero to it.