Asynchronous sequential circuits in .NET Access QR-Code in .NET Asynchronous sequential circuits

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Asynchronous sequential circuits using barcode implement for vs .net control to generate, create denso qr bar code image in vs .net applications. Microsoft .NET (a) Write visual .net QR Code JIS X 0510 a primitive ow table and reduce it. You may assume that the length of a train is smaller than 3000 feet.

(b) Show a circuit realization of the light-control network. (c) Repeat the design if it is known that the trains may be longer than 3000 feet. Problem 11.

16. Figure P11.16 illustrates an of ce for two students.

Instead of light switches the room has two photocells, one at each door. If either or both students are in the of ce, the light is to be on. The students can enter or exit only as shown; entrances and exits never occur simultaneously.

The photocells indicate a 1 when their beam is interrupted by a student entering or exiting and a 0 at all other times. (a) Find a primitive and a minimum-row reduced ow table that describe the lightcontrol operation. (b) Show a valid assignment and nd the excitation and output equations.

(c) Repeat (a) if entering and exiting the room simultaneously is allowed.. Fig. P11.16 Light Entrance only x1 Photocells x2 Exit only Problem 11 .17. A factory produces steel bars of length L + and L .

It is required that the bars are to be sorted by placing them on a conveyor belt passing under two photocells, as shown in Fig. P11.17.

The spacing between the bars on the belt is greater than . To the right of P2 is a trap door through which short bars can drop. The trap door should not be open when the beam of P2 is interrupted and should be open immediately after a short bar, of length L , has completely passed P2 .

Let the value of output xi of Pi be 1 when the beam of Pi is interrupted. Let the value of the trap-door control z be 1 when the door is open. (a) Find a minimum-row reduced ow table, with eight stable states, that describes the trap-door control operation.

(b) Show a valid assignment and nd the logic equations for the memory elements and the trap-door control.. Fig. P11.17 Direction of motion P2 Short bar Trap door Problem 11 QR Code ISO/IEC18004 for .NET .18.

A completely automatic and independent traf c-light system for the intersection of roads x and y consists of two sensors, some processing circuitry, and the lights. The sensors and circuitry generate two outputs, z and w. Output z attains the value 1 if and only if m(x) m(y) 6, where m(x) indicates the number of cars waiting to cross a road y.

Output w attains the value 1 if and only if m(y) m(x) 6. We wish to design an SIC fundamental-mode sequential circuit with inputs (z, w, z , w ) and outputs (Gx , Rx , Gy , Ry ), where G and R refer to green and red lights, respectively, and the subscripts indicate the street from which the light is visible. The objective is to minimize intersection load by unloading whichever street is overloaded, i.

e., has at. Problems least six qr bidimensional barcode for .NET cars more than the other. The lights of the street being unloaded should remain green until the other street becomes overloaded.

(a) Show a primitive ow table. (b) Give a reduced ow table. (c) Show a circuit realization.

The outputs are to be fast and icker-free. Problem 11.19.

In the circuit of Fig. P11.19, the values of input variables x1 and x2 never change simultaneously.

(a) Describe in words the terminal behavior of the circuit. (b) Derive the ow table for the circuit. (c) Show how one of the gates can be eliminated without changing the ow table.

What physical problems might this cause, and how can they be prevented Hint: To derive the ow table, open the feedback loop.. Fig. P11.19 x2 x1 x2 Problem 11 .20. The reduced ow table of Table P11.

20a is to be assigned three secondary variables, as shown in Table P11.20b. Note that several combinations of y1 y2 y3 values have been assigned to the rst two rows of the reduced table.

Consequently the circuit will be stable when x1 x2 = 00 in any of the y1 y2 y3 combinations 000, 001, 011, for example, and each of these stable con gurations must be equivalent to 1. Complete an excitation table for the situation when each transition takes as short a time as possible. Is the excitation table unique Table P11.

20 State PS a b c d x1 x2 00 1 1 2 3 01 5 4 5 4 11 6 7 7 6 10 9 8 9 9 a a a b b b c d y1 y2 y3 000 001 011 010 100 101 111 110 x1 x2 00 Y1 Y2 Y3 01 11 10.
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