PCL818_CTRL_TRIG
#define PCL818_CTRL_DISABLE_TRIG PCL818_CTRL_TRIG(0)
#define PCL818_CTRL_SOFT_TRIG PCL818_CTRL_TRIG(1)
#define PCL818_CTRL_EXT_TRIG PCL818_CTRL_TRIG(2)
#define PCL818_CTRL_PACER_TRIG PCL818_CTRL_TRIG(3)