Arithmatic Logic Unit


Posted on Feb 6, 2014

Creating a 2-bit alu. It has 8 defined functions (the functions are defined by a 3bit code), AND XOR etc, and these functions act on two, 2-bit binary numbers and produce a 2-bit answer. From what I have done so far, I have a decoder that decodes what the function is, and the output of that powers/activates the corresponding purpose of that function. The problem I`m having is, the outputs of the two functions XOR and AND have to


Arithmatic Logic Unit
Click here to download the full size of the above Circuit.

go into LSB, MSB and carryOut to indicate the answer, however since the outputs are tied together it causes an error. And I can`t have 3 separate LED`s defined for each function. I must only use that 3 (LSB, MSB and carryOut). *note on the image* a - LSB of binary number 1 {these are controlled by switches} b - MSB of binary number 1 c - LSB of binary number 2 d - MSB of binary number 2 cin - carry in.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Metallic pipe detector
    Ultrasonic-transceiver
    MAKING YOUR OWN REGULATED POWER SUPPLY
    Microphone Condenser Pre Amplifier Circuit
    Magic Lights
    Whites Classic I metal detector schematic diagram
    Digital Circuits
    Infrared IR Receiver Circuit
    MA1576Y charge pump LED driver circuit diagram
    Voice bandpass circuit diagram
    Multiple waveform generator circuit diagram



    Top