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Circuits/Building Larger Circuits

Building Larger Circuits

Composing small blocks into complete datapaths.

  1. 1

    4-bit ALU

    A 4-bit ALU that performs add, subtract, and, or, and xor selected by a 3-bit opcode, with carry-out and zero flags.

    medium
  2. 2

    Traffic Light Controller

    A 3-state, timer-driven Moore FSM that cycles a traffic light through red, green, and yellow with different hold times.

    medium
  3. 3

    Simple Datapath: Register File + ALU + Writeback

    Combine a register-file read, a combinational ALU, and a synchronous writeback into a one-instruction-slot datapath.

    hard
  4. 4

    UART-Lite Transmitter

    Shift a byte out serially as a UART frame (start bit, 8 data bits LSB-first, stop bit) driven by an external baud tick pulse.

    hard
  5. 5

    Parameterized Fixed-Priority Arbiter

    A combinational, parameterized fixed-priority arbiter that grants exactly one requester: the lowest-indexed one asking.

    medium