Reverse MB90F345CAPMC-GS Infineon Microcontroller Memory
Reverse MB90F345CAPMC-GS Infineon Microcontroller Memory and then clone locked microprocessor MB90F345CAP embedded firmware out from its flash memory, after attacking MCU MB90F345CAPMC protective system;
Make sure to turn on the A/D converter power supply (AVCC, AVRH, AVRL) and analog inputs (AN0 to AN23) after turning-on the digital power supply (VCC).
Turn-off the digital power after turning off the A/D converter supply and analog inputs. In this case, make sure that the voltage does not exceed AVRH or AVCC (turning on/off the analog and digital power supplies simulta- neously is acceptable).
The X0, X1 pins and X0A, X1A pins may be possible causes of abnormal operation. Make sure to provide bypass capacitors via the shortest distance from X0, X1 pins and X0A, X1A pins, crystal oscillator (or ceramic oscillator) and ground lines, and make sure, to the utmost effort, that the oscillation circuit lines do not cross the lines of other circuits. It is highly recommended to provide a printed circuit board art work surrounding X0, X1 pins and X0A, X1A pins with a ground area for stabilizing the operation.
For each of the mass-production products, request an oscillator evaluation from the manufacturer of the oscillator you are using. The MB90340E Series does not support internal pull-up/down resistors (except for the pull-up resistors built into ports 0 to 3). Use external components where needed. If you do not connect pins X0A and X1A to an oscillator, use pull-down handling on the X0A pin, and leave the X1A pin open.
If PLL clock mode is selected, the microcontroller attempt to be working with the self-oscillating circuit even when there is no external oscillator or the external clock input is stopped. Performance of this operation, however, cannot be guaranteed. To prevent the internal regulator circuit from malfunctioning, set the voltage rise time during power-on to 50 ms or more (0.2 V to 2.7 V)