dsPIC33F/PIC24H Flash Programming Specification). Note that the
ICSP key is in bit-reversed order, since it is the only thing that
is sent MSb first (hence, we flip the bit order and use our usual
dsPIC33F/PIC24H Flash Programming Specification). Note that the
ICSP key is in bit-reversed order, since it is the only thing that
is sent MSb first (hence, we flip the bit order and use our usual