| ??? 12/03/04 18:30 Read: times |
#82483 - I/O read doubt.. |
Hi all
I have a doubt about reading a simple IO pin. I know i must write a '1' to the pin before i read a value, but that´s will not kill the IO drivers of the pin ?? I came from the PICs family, and with these MCUs you specify, writing in a SFR register if you want some pin to be Input or Output, but in the 8051 seems that this is not necesary. What you say about it ?? Regards Robert |
| Topic | Author | Date |
| I/O read doubt.. | 01/01/70 00:00 | |
| I/O read | 01/01/70 00:00 | |
| got the idea. | 01/01/70 00:00 | |
port pin can sink and source | 01/01/70 00:00 | |
| look at the sachmatic in "the bible" | 01/01/70 00:00 |