546 7-bit arbiter
546 : 7-bit arbiter
- Author: Kira Tran
- Description: Simple combinational logic to arbit input (prioritize lowest of inputs 0 - 6)
- GitHub repository
- View in Wokwi
- Clock: 0 Hz
How it works
OUT7 stays high as long as reset_n XOR clk is active (effectively, on when clk low). Other outputs (OUT0-6) have at most one high, based on inputs IN0-6, arbiting between multiple inputs. Arbiter prioritizes lowest active input.
How to test
Connect outputs to 7-segment LED display, or any other form of testable output (ex. LEDs). Change inputs and verify correct arbitration. OUT7, with a freerunning clock and stable reset, should oscillate periodically.
External hardware
Input switches, output 7-segment LED, possibly a button to step clk.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | IN0 | OUT0 | |
| 1 | IN1 | OUT1 | |
| 2 | IN2 | OUT2 | |
| 3 | IN3 | OUT3 | |
| 4 | IN4 | OUT4 | |
| 5 | IN5 | OUT5 | |
| 6 | IN6 | OUT6 | |
| 7 | OUT7 |