it depends on the version of 68701 P3 has no protection P5 does
a P3 can be read with a Data I/O Unisite http://matthieu.benoit.free.fr/pdf/MC68705P5_Bootstrap_ROM_Listing.pdf The P5 is more involved. You put it into factory test mode, feed it a NOP instruction and it will output the rom data on the I/O pins. A variation of that will work on other parts in the series. On 2/17/19 7:57 AM, Kyle Owen via cctalk wrote: > Has anyone been successful in dumping the EPROM contents from an MC68701? > As I understand it, this MCU requires executing a particular program from > external memory to access the internal EPROM, both for programming and > reading.
