Chapter 8 Protocol Decoding    RIGOL 
MSO4000/DS4000 User’s Guide  8-13 
 
 
 
 
After the decoder is set to none check, the decoding shows no error. 
 
 
  End of Frame Error 
This error is generated when the end condition of the frame is not met. For 
example, when the Stop Bit is set to 1.5, an end of frame error as shown in 
the figure below occurs if the actual stop bits is less than 1.5 bits.  
 
 
 
 
 
The check bit detected is 1 
The stop bits detected is less than 1.5 bits 
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