IDR0_HTTU_S
#define IDR0_HTTU_M (0x3 << IDR0_HTTU_S)
#define IDR0_HTTU_A (0x1 << IDR0_HTTU_S) /* Access flag (A-flag) */
#define IDR0_HTTU_AD (0x2 << IDR0_HTTU_S) /* A-flag and Dirty State*/