| ??? 04/13/05 16:30 Read: times |
#91513 - Top of pullup?? Responding to: ???'s previous message |
Joseph Hebert said:
if you write a zero to a pin (to the top of the pullup resistor) Surely the top of a pullup is connected to the positive supply - that's why it's called a pull-up?! |
| Topic | Author | Date |
| ports input to ouput | 01/01/70 00:00 | |
| Fundamental questions | 01/01/70 00:00 | |
| Not relevant | 01/01/70 00:00 | |
| Input/Output | 01/01/70 00:00 | |
| Top of pullup?? | 01/01/70 00:00 | |
| Yes, the top. | 01/01/70 00:00 | |
| now you even confused me | 01/01/70 00:00 | |
| A good representation of 8051 I/Os here | 01/01/70 00:00 | |
| What do you think, Karthik? | 01/01/70 00:00 | |
| Always an input, no matter how you treat | 01/01/70 00:00 | |
| I concede | 01/01/70 00:00 | |
| Pull down | 01/01/70 00:00 | |
I am clear now thanks to everybody | 01/01/70 00:00 |