AUX_USER_MODE
it6505_set_bits(it6505, REG_AUX_CTRL, AUX_USER_MODE, 0);
AUX_USER_MODE | AUX_NO_SEGMENT_WR, AUX_USER_MODE);
it6505_set_bits(it6505, REG_AUX_CTRL, AUX_USER_MODE, 0);
it6505_set_bits(it6505, REG_AUX_CTRL, AUX_USER_MODE, AUX_USER_MODE);