Dynamics of switching circuits While thinking about real switching devices one has to take into consideration that unlike ideal circuits they posses the property of having two states: stable and unstable. What's more, all logical elements such as gates, flip-flops, require some time (called propa...
Entering function definition Function may be entered in two forms: • Canonical numerical decimal representation, • Literal representation. In canonical numerical representation function definition can be entered by proceeding menu steps File ⇒ New function ⇒ Canonical representation or by click...
Essential hazards in sequential circuits Essential hazards are a result of unequal signal delay paths that exist in a circuit and they cause the transition to the stable state unpredicted by the circuit programme. They may occur when a signal and its complementation drive a
Hazards in combinational circuits Hazards in combinational circuits occur as momentary errors on the output and are the result of delay time introduced by the use of some gates in implementation of a function, as shown in the picture below. There are two main types of hazards: static and dynamic...
Races in sequential circuits Races in sequential switching circuits occur when the circuit programme requires the transition between two states, the codes of which are not logically adjacent - i.e. they differ in more than one bit. It means that a race may happen only when for describing internal...
Registers Registers are such sequential circuits that their purpose is storing information. The main parameters that characterise a register are its length (equal to the number of flip-flops used in the construction) and the way of first loading data into it, then reading it. If for loading data...
Resolve unsolvable SST Resolving unsolvable SST is done by splitting SST into parts, that don't contain contradictory states. In the places of division, one or several additional elements have to be switched-on and off, to differ parts containing contradictory states. If partitioning is done well...
Structure realization Program generates following structures: • Multiplexer, • Multiplexer with gates: o NAND gates only, o NOR gates only, o AND and OR and NOT gates, • Demultiplexer, • Tree of Multiplexers, • Multiplexer - demultiplexer. The structure is chosen by a user. The menu item w...
Syntthesiis off a combiinattiionall swiittchiing ciircuiitt The aim of a synthesis of a combinational circuit is to obtain the output functions and then a logical diagram of the circuit when given its algorithm of work. The output functions of the circuit may be i n different forms but they should ...
ATOMOWA BUDOWA MATERII WPROWADZENIE Atomowa budowa (struktura) materia - przełomowa idea w zrozumieniu ś wiata oparta na: wynikach bada ń eksperymentalnych • Intuicyjnych koncepcjach i modelach teoretycznych Zło Ŝ ona (pełna zwrotów w czasie) droga rozwoju idei (koncepcji) Staro Ŝ ytno ść : • Tal...
