1.Data bus 2.Address line 3. Refresh 4. Sthuck fault
5.Sthuck low 6. Snake on 7. snake off 8. jump
9.preudo rendom 10. perity 11. walk left 12.lnv walk left
13.walk Right 14. Inv walk rght 15. chccker brd 16. ATS MATS+
17.Marching c 18. Biock move 19. Slow Refresh 20. Burst