| Mode | CPOL | CPHA | |
|---|---|---|---|
| 0 | 0 | 0 | Clock idle low, data is clocked in on rising edge, output data (change) on falling edge |
| 1 | 0 | 1 | Clock idle low, data is clocked in on falling edge, output data (change) on rising edge |
| 2 | 1 | 0 | Clock idle high, data is clocked in on falling edge, output data (change) on rising edge |
| 3 | 1 | 1 | Clock idle high, data is clocked in on rising edge, output data (change) on falling edge |
Mode CPOL CPHA
0 0 0 Clock idle low, data is clocked in on rising edge, output data (change) on falling edge
1 0 1 Clock idle low, data is clocked in on falling edge, output data (change) on rising edge
2 1 0 Clock idle high, data is clocked in on falling edge, output data (change) on rising edge
3 1 1 Clock idle high, data is clocked in on rising, edge output data (change) on falling edge
USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.