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in the process of or at least i want to backup the mcu data and transfer it over to another mcu,  i can connect and see the mcu with my pe cyclone fx but when i read and dump the data i get a empty file 768kb.  S31508000000000000000000000000000000000...
cant find the exact part number Ive purchases a few samples and none have part number , wonderful, i want to locatethe complete part number to the item in the picture    
i have this spc58 that i cannot find a datasheet for , please help, i foubd 2 others that are similar but not sure if they are compatible...No Datasheetare these the same
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