| ??? 10/23/09 07:33 Read: times |
#169994 - Clock usually used to detect edges Responding to: ???'s previous message |
Sorry, I don't know anything about your specific processor but for edge-trigged interrupts, many processors are using the system clock to detect the edge, i.e. one cycle with one logic state and the next clock cycle with a new logic state. That is why it is common to require the wakeup signal to feed a level-trigged input and not an edge-trigged input.
Are you sure that your clock is stopped? And you have verified that the edge/level setting for the input really is correct? |
| Topic | Author | Date |
| controller in total power down mode... | 01/01/70 00:00 | |
| Clock usually used to detect edges | 01/01/70 00:00 | |
| How do you mean? | 01/01/70 00:00 | |
| The datasheet tells you what is *guaranteed* to work | 01/01/70 00:00 | |
| What DataSheet says is... | 01/01/70 00:00 | |
| About Total powerdown mede: | 01/01/70 00:00 | |
| How did you measure current ? | 01/01/70 00:00 | |
| How did you measure current ? | 01/01/70 00:00 | |
current in total power down mode | 01/01/70 00:00 | |
| Pullup? | 01/01/70 00:00 |