XM_IMR
SK_XM_CLRBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET);
SK_XM_SETBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET);
SK_XM_WRITE_2(sc_if, XM_IMR, XM_INTRS);
SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF);
SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF);