PKG_PWR_LIM_1_TIME_Y
y = REG_FIELD_GET(PKG_PWR_LIM_1_TIME_Y, r);
rxy = REG_FIELD_PREP(PKG_PWR_LIM_1_TIME_X, x) | REG_FIELD_PREP(PKG_PWR_LIM_1_TIME_Y, y);