Moore and Mealy Type Synchronous State Machines Synchronous state machine is the one, where its internal state changes along with synchronous input C (clock) or CLK. Typically C has rectangle waveform. State usually changes on arising or falling edge of clock signal (Edge-Triggered Devices). Syn...
Number representations So far only positive numbers were presented. As in decimal, also in other systems we have to present both positive (represented with “+” sign) and negative (represented with “-“ sign) values. This notation is called sign magnitude. Computers are generally not designed to in...
Obttaiin priimary SST ffrom tthe descriipttiion off operattiion off tthe ciircuiitt SST consists of several rows, each representing one input, output or additional elements (primary SST consists only of rows describing input and output signals) plus row header showing
Options and menu items Allows user to change working behavior and result presentation of software: - Diagram options, MENU: [Options/Diagram] - Working (partially / only end solution) , MENU: [Options/Working], when partially is selected, system prompts user after each step during solution (in c...
Other circuits Circuits presented above are most commonly used. There are, however, other circuits. One of them is binary subtractor. Presented in fig. 4. 1-bit subtractor realises operation Ai-Bi-Ci where Ci signal is called borrow-out bit (borrow from current position to previous). There are a...
Preparing model When preparing description of working system, there are 3 possible ways describing working and non-working conditions: - gather all data from file (file format included in help system), MENU: [File/Open table] - input formula of connection, MENU: [File/Formula of connection]: - ...
Swiittchiing deviices and ciircuiitts The switching devices posses the property of having associated with them two distinct physical states. The actual signal values of these states differ from one device to another upon their design, but still these devices are controlled by two-valued signals a...
Basics Basic idea when using Table of Switching Sequence method is to follow four main steps: - preparing description of working system, means to formulate conditions of working, - preparing and description presentation of working system by the method Table of Successive Connection, - hacking s...
Binary comparators Another type of logic circuit used with binary numbers is a comparator. Fig. 3 presents the logic symbol and the truth table of 1-bit comparator. This circuit sets exactly one of outputs “AB” into state 1 according to compared digits Ai and Bi and input signals “”. Like adder...
Number systems and representations There are many different numbers systems all over the world. Most of them are weight-positional systems, where value of number's each digit depends on both value of digit and it's position in a sequence of symbols. Therefore, during labs there will be implemente...
