INT_ChgMsk(INT_MSK_NULL, INT_MSK_ABUS);

  INT_SetScuFunc(0x50, ModemInt50);

  INT_SetScuFunc(0x51, ModemInt51);

  INT_SetScuFunc(0x52, ModemInt52);

  INT_SetScuFunc(0x53, ModemInt53);

  INT_SetScuFunc(0x54, ModemInt54);

  INT_SetScuFunc(0x55, ModemInt55);

  INT_SetScuFunc(0x56, ModemInt56);

  INT_SetScuFunc(0x57, ModemInt57);

  INT_SetScuFunc(0x58, ModemInt58);

  INT_SetScuFunc(0x59, ModemInt59);

  INT_SetScuFunc(0x5A, ModemInt5A);

  INT_SetScuFunc(0x5B, ModemInt5B);

  INT_SetScuFunc(INT_SCU_MODEM, ModemInt);

  INT_SetScuFunc(0x5D, ModemInt5D);

  INT_SetScuFunc(0x5E, ModemInt5E);

  INT_SetScuFunc(0x5F, ModemInt5F);

  INT_ChgMsk(INT_MSK_ABUS, INT_MSK_NULL);

  INT_SetAck(1);