| ??? 07/11/08 17:03 Read: times |
#156622 - RX ad TX have pullups Responding to: ???'s previous message |
As Erik said, in the classic architecture, all P1, P2, and P3 pins are electrically identical. Therefore, both RX and TX have the triple pullup, which is the weak passive pullup, the active pullup for Vin > 2v, and the 1 (or 2) clock wide drive on the 0 to 1 transition. |
| Topic | Author | Date |
| UART | 01/01/70 00:00 | |
| I do not understand your question; however ... | 01/01/70 00:00 | |
| Actually | 01/01/70 00:00 | |
| They are not open drain | 01/01/70 00:00 | |
| RX ad TX have pullups | 01/01/70 00:00 | |
| Please have a look here | 01/01/70 00:00 | |
| this isn't really an 805x ... | 01/01/70 00:00 | |
as always, | 01/01/70 00:00 |