An address of the form followed by "0000" will work, like I tried to explain several times.
"30000", "40000", "a0000", "#0000", ....
0xC20xC20xC20xC20xC5 does not fit into that category, so it will be interpreted as
0xC20x300x300x300x30 because only the first byte makes it to the register,
the other four are taken from address register 1.