What is the art protocol, this lecture?
We answer this question.
Universal asynchronous receiver transmitter, you art is a surreal communication between two digital
systems, each digital system contains two signals implementing the new art communication text transmitter
port and asks receiver port.
There is no shared clock between two parts to synchronize the Sario communication.
Therefore, it is called asynchronous.
Different types of devices can use this interface and the related protocols to communicate in this section,
we are going to establish such communication between the bases three board and a computer.
The sender and receiver communicating via you art should follow the same characteristics to exchange
data successfully.
From the digital point of view, these characteristics can be categorized into three groups, one transmission
type that can be simplex, half duplex and full duplex, two data format.
The data and their companion bits should have a specific format agreed by both transmitter and receiver.
Three timing bits should be transferred at a predefined rate.
In the simplest type, only one device is the sender and the other one is the receiver.
In half duplex, both can send data, but there is one sender and receiver at each time.
In full duplex, both devices can send and receive data at the same time.
The data transmitted over your art is in the form of packets or frames, each packet of data has at
most four parts, one to start with, whose value is zero seven or eight data.
It's optional parity bit, which can be art or even parity.
One or two subjects whose values are one.
A data packet can have one to start with a database and want to stop it in a simple case.
Let's assume we are going to send the zero one zero zero zero zero zero one or yacked the transmission
data line that starts with a low level start and then a database and finally a high level.
Stop it.
If you want to consider an even parody, it that it should be sent after eight data and before they
stop it.
Although you art is an asynchronous protocol, the transmitter and receiver should have a predefined
be timing to receive the data correctly, the timing is determined by the Boatwright's, which is defined
as the number of bits sent per second.
This table shows a list of you are Boatwright's.
How can we describe your transmitter and receiver modules in Etchells?
The next lecture will cope with this question.
These are our takeaway messages.
You are provides asynchronous data transmission between two digital system.
There you are, data packet format consists of a start with followed by data, it's then an optional
parity bit and finally one or two stop.
It's.
Now the question, what is your data packet for sending the value of zero one zero zero one one one
zero?
Please consider that even parity bit and to stop its.