171 SPI Flash State Machine
171 : 0b 010 101 011 : SPI Flash State Machine
- Author: Greg Steiert
- Description: Implements a state machine stored in an external SPI flash
- GitHub repository
- Wokwi project
- Extra docs
- Clock: 0 Hz
- External hardware: SPI Flash with 0x03 read command and 24bit address
How it works
Inputs and current state are shifted into a SPI flash to look up the next state and outputs
How to test
Connect a SPI flash device loaded with state machine values
IO
| # | Input | Output |
|---|---|---|
| 0 | clock | cs |
| 1 | reset | dout |
| 2 | din | out0 |
| 3 | in0 | out1 |
| 4 | in1 | out2 |
| 5 | in2 | out3 |
| 6 | in3 | out4 |
| 7 | in4 | out5 |