BCK_INVERSE_MASK_SFT
#define BCK_INVERSE_MASK_SFT (0x1 << 3)
#define BCK_INVERSE_MASK_SFT (0x1 << 1)
#define BCK_INVERSE_MASK_SFT (0x1 << 3)
#define BCK_INVERSE_MASK_SFT (0x1 << 1)