In an AHDL BCD to binary code converter, how is multiplication by 10 accomplished?
What is the HDL key issue in the design of the MUX and DEMUX?
What type of device is shown in the given figure, and what inputs (A3,A2,A1,A0) are required to produce the output levels as shown?
What are the outputs of a 7485 four-bit magnitude comparator when the inputs are A = 1001 and B = 1010?
Why are control inputs included in an HDL magnitude comparator?
There appears to be a problem with a 7-segment display on a DMM sometimes skipping certain numbers. How would you test the display?
A 16-input multiplexer is to be used to perform parallel-to-serial data conversion. Which of the following counters would be required to provide the data select inputs?
In most modern computers, the transfer of data takes place over a common set of connecting lines called a ________.
What VHDL techniques are used to describe a priority encoder?
What is the purpose of a decoder's inputs?
A breadboard-circuit design using a BCD-to-decimal decoder has a problem wherein the operation of the system is erratic. The technician uses his scope to examine the waveforms throughout the system and doesn't really see any problems. While he's scratching his head, what helpful advice can you offer him as to what might be wrong and what to do to correct the problem?
An octal-to-binary encoder has eight data inputs and encodes an output of ________ bits.
Which is the decimal number for the BCD number, 10110110?
A 75154 1-of-16 decoder has 16 outputs and decodes an input of ________ bits.
In an AHDL BCD to binary coded converter, multiplication by 10 is performed by ________.
What is an important attribute of the conditional signal assignment statement?
Which statement best describes the given figure, and what is the function of the terminal labeled EN?
The circuit in Figure 9-8 is defective; data is not appearing on the output lines. A check with the scope shows data pulses on the serial data line and multiplex control lines, S0–S2; no parity error is indicated. A further check with a logic probe indicates that Vcc and ground appear to be present. What might be wrong with the circuit?
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