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Asynchronous Data Format e-Tutorial

The following exercise will help you to understand the concept of Asynchronous Data Transmission.
You only need to generate 3 parameters and get the asynchronous waveform right.
Light bulb is the step where checking is required.


ASCII Hex Number:
Parity:
Number of Stop bit:

1st: Convert Hex Number to Binary Bits!

Hex to Binary Table
D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1


2nd: Get The Parity Bit!

How?
                     
Number of "0" & "1" from D0 to D6: "0" = "1" =    Parity
"0" = "1" =


Last step: Generate the Asynchronous waveform!

use the data from step 1 & 2

Start Bit D0 D1 D2 D3 D4 D5 D6 Parity Bit Stop Bit1 Stop Bit2
0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1


The Asynchronous Waveform:

Idle Start Bit D0 D1 D2 D3 D4 D5 D6 Parity Stop Bit 1 Stop Bit 2 Idle


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