Protected ATMEGA1280V MCU Memory Heximal Cloning is a process to readout the embedded firmware program out from atmega1280v microprocessor, and then recover firmware from atmega1280v microcontroller flash and eeprom memory;
Consider the clock period starting shortly after the first falling edge of the system clock. The latch is closed when the clock is low, and goes transparent when the clock is high, as indicated by the shaded region of the “SYNC LATCH” signal.
The signal value is latched when the system clock goes low. It is clocked into the PINxn Register at the succeeding positive clock edge when recover atmega64 mcu embedded heximal file. As indicated by the two arrows tpd,max and tpd,min, a single signal transition on the pin will be delayed between ½ and 1-½ system clock period depending upon the time of assertion.
When reading back a software assigned pin value, a nop instruction must be inserted as indicated in below Figure. The out instruction sets the “SYNC LATCH” signal at the positive edge of the clock to copy locked microprocessor atmega16l memory code. In this case, the delay tpd through the synchronizer is 1 system clock period.