The MCPX contains a 4KB mask ROM. This tiny sliver of code is burned into the chip at the factory. It is the first code the CPU sees after power is applied. This code is responsible for:
: A correct dump of the version 1.0 ROM should have the MD5 hash: d49c52a4102f6df7bcf8d0617ac475ed Common "Bad Dump" Issues : Many versions circulating online are "bad dumps" (MD5: 96a5f59a13382c185636e691d6c323d Mcpx Boot Rom Image