FSR_RD_SHIFT
#define FSR_RD_MASK (((1UL << FSR_RD_BITS) - 1) << FSR_RD_SHIFT)
#define FSR_RD(x) ((unsigned long)(x) << FSR_RD_SHIFT)
#define FSR_GET_RD(x) (((x) & FSR_RD_MASK) >> FSR_RD_SHIFT)