Rigol DS1000Z-E Series - Page 160

RIGOL Chapter 7 Protocol Decoding
7-10 DS1000Z-E User Guide
Wherein, there are even number of 1 in the 8-bit data 01111101 and the check
bit should be 1; but the check bit detected on the TX is 0, thus check error
occurs.
Note: Two error marks will be displayed when end frame error and check error
are detected at the same time.
(01111101, LSB)
Frame End Error
The check bit detected is 0
Frame Check Error