| ??? 06/08/03 17:13 Read: times |
#47819 - RE: Power Down mode (key wakeup) Responding to: ???'s previous message |
Yes, just to summarize what the P89C66X low power requirements (for power down...NOT idle mode):
To properly terminate power down mode, the external interrupt must be held long enough for the oscillator to restart and stabilize (normally less than 10ms). I too do not think the keypad could be pressed and released faster than this minimum requirement. However many other sources of power wake up do not meet this requirement. I believe Kais one shot would be perfect for this. thank you |
| Topic | Author | Date |
| Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
| RE: Power Down mode (key wakeup) | 01/01/70 00:00 | |
RE: Power Down mode (key wakeup) | 01/01/70 00:00 |



