| ??? 03/02/06 17:10 Read: times |
#111083 - I do not fully agree Responding to: ???'s previous message |
Janne said:
The setb -command drives the internal weak pull-up for only 2 oscillator periods to start the stronger pull-up. The stronger pull-up is wired so that it will turn off if externally pulled low. I do not fully agree with that. There is a strong internal active pull-up, a weak one and a very weak one. The strong one is only turned-on for two oscillator periods (with a 12-clocker). The weak one is turned-off, when the port is externally pulled-down (with 1s written into according SFR). Only the very weak one is still active then. Kai |
| Topic | Author | Date |
| Port3 Behavior | 01/01/70 00:00 | |
| Try this: | 01/01/70 00:00 | |
| Re: Try this: | 01/01/70 00:00 | |
| Questions | 01/01/70 00:00 | |
| Re: Re: Try this: | 01/01/70 00:00 | |
| I do not fully agree | 01/01/70 00:00 | |
Yes, you are correct... | 01/01/70 00:00 | |
| amazing | 01/01/70 00:00 | |
| At first decide ! | 01/01/70 00:00 | |
| How true! | 01/01/70 00:00 |