UART communication doubt

From: "Nandinikrishna" <n.nandini08@xxxxxxxxx>
Date: Wed, 30 Jan 2008 06:28:51 -0600

Hi I am Nandinikrishna I am working on C8051CF023 processor. How exactly
does synchronous and asynchronous communication take place. To transmit 0
bit the TXD line will be held low ie.,0V, to transmit 1 bit the TXD line
will be held at 5v. In asynchronous communication the processing speed of
the two terminal varies then how long should the TXD line be supplied with
the voltage?

.

Follow-Ups:
- Re: UART communication doubt
  - From: Paul Burke

Prev by Date: C programming on ARM
Next by Date: Re: C programming on ARM
Previous by thread: C programming on ARM
Next by thread: Re: UART communication doubt
Index(es):
- Date
- Thread

Relevant Pages

Re: UART communication doubt
... exactly does synchronous and asynchronous communication take ... To transmit 0 bit the TXD line will be held low ie.,0V, to ... communication the processing speed of the two terminal varies ...
(comp.arch.embedded)
Re: UART communication doubt
... does synchronous and asynchronous communication take place. ... bit the TXD line will be held low ie.,0V, to transmit 1 bit the TXD line ... So as long as the clocks aren't too far out relative to each other, and as long as the data word isn't too long, by the time the stop bit arrives the bit level is still valid at the sampling point. ...
(comp.arch.embedded)
Re: UART communication doubt
... does synchronous and asynchronous communication take place. ... bit the TXD line will be held low ie.,0V, to transmit 1 bit the TXD line ... So as long as the clocks aren't too far out relative to each other, and as long as the data word isn't too long, by the time the stop bit arrives the bit level is still valid at the sampling point. ...
(comp.arch.embedded)