register addr=0x0000 readback value=0x0080
register addr=0x0000 readback value=0x0095
register addr=0x0001 readback value=0x0040
register write addr=0x0001 value=0x0041
register addr=0x0001 readback value=0x0031
register addr=0x0000 readback value=0x0088
register addr=0x0001 readback value=0xffff
register addr=0x0001 readback value=0x0031
register addr=0x0000 readback value=0x0088
