GI_CNT_MODE
bits |= GI_CNT_MODE(mode >> NI_GPCT_COUNTING_MODE_SHIFT);
#define GI_CNT_MODE_NORMAL GI_CNT_MODE(0)
#define GI_CNT_MODE_QUADX1 GI_CNT_MODE(1)
#define GI_CNT_MODE_QUADX2 GI_CNT_MODE(2)
#define GI_CNT_MODE_QUADX4 GI_CNT_MODE(3)
#define GI_CNT_MODE_TWO_PULSE GI_CNT_MODE(4)
#define GI_CNT_MODE_SYNC_SRC GI_CNT_MODE(6)
#define GI_CNT_MODE_MASK GI_CNT_MODE(7)