| ??? 04/14/05 08:25 Read: times |
#91540 - Pull down Responding to: ???'s previous message |
Joseph Hebert said:
Yes, the top of a pullup resistor normally ties to a positive supply, unless it's biasing a pnp transistor. In which case it is a pulldown resistor. Ian |
| 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 |