A device for emulation of designs for integrated circuits, comprising: at least one receiving device (1, 2, 3, 4, 5, 6) configured for receiving multiple programmable logic circuits (11, 12, 13; 21, 22, 23) having terminal contacts; and an electrical connection structure (14; 24), which has BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232), each of which includes multiple channels (1...k), wherein each programmable logic circuit (11, 12, 13; 21, 22, 23) of the multiple programmable logic circuits when connected with the receiving device is connected to at least one BUS line of the BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232), wherein the BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232) are connectable to one another by BUS connection lines (141, 142, 143) wherefore a BUS switching device (141', 142', 143') is provided in each BUS connection line (141, 142, 143), wherein the electrical connection structure (14; 24) is configured so that the multiple programmable logic circuits are independently interconnectable with one another, wherein at least a part of the terminal contacts of any programmable logic circuit (11, 12, 13; 21, 22, 23) is independently assignable, wherein at least a part of the BUS lines (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) connected to the programmable logic circuits (11, 12, 13; 21, 22, 23) are alternately electrically connectable to one another using BUS switching devices (111', 112'; 121',122'; 131', 132'; 141', 142', 143'), wherein each BUS switching device comprises multiple switches (S 1...S k), characterized in that each channel (1...k) of a first BUS line (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) is electrically connectable only to one assigned channel (1...k) of another BUS line (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) by a repective one of the multiple switches (S 1...S k) of at least one of the BUS switching devices (111', 112'; 121',122'; 131', 132'; 141', 142', 143'). at least one receiving device (1, 2, 3, 4, 5, 6) configured for receiving multiple programmable logic circuits (11, 12, 13; 21, 22, 23) having terminal contacts; and an electrical connection structure (14; 24), which has BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232), each of which includes multiple channels (1...k), wherein each programmable logic circuit (11, 12, 13; 21, 22, 23) of the multiple programmable logic circuits when connected with the receiving device is connected to at least one BUS line of the BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232), wherein the BUS lines (111, 112, 121, 122, 131, 132; 211, 212, 221, 222, 231, 232) are connectable to one another by BUS connection lines (141, 142, 143) wherefore a BUS switching device (141', 142', 143') is provided in each BUS connection line (141, 142, 143), wherein the electrical connection structure (14; 24) is configured so that the multiple programmable logic circuits are independently interconnectable with one another, wherein at least a part of the terminal contacts of any programmable logic circuit (11, 12, 13; 21, 22, 23) is independently assignable, wherein at least a part of the BUS lines (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) connected to the programmable logic circuits (11, 12, 13; 21, 22, 23) are alternately electrically connectable to one another using BUS switching devices (111', 112'; 121',122'; 131', 132'; 141', 142', 143'), wherein each BUS switching device comprises multiple switches (S 1...S k), characterized in that each channel (1...k) of a first BUS line (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) is electrically connectable only to one assigned channel (1...k) of another BUS line (111, 112, 121, 122, 131, 132; 141, 142, 143; 211, 212, 221, 222, 231, 232) by a repective one of the multiple switches (S 1...S k) of at least one of the BUS switching devices (111', 112'; 121',122'; 131', 132'; 141', 142', 143').