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Protocol analysis
R&S
®
MXO 5 Series
321User Manual 1802.3369.02 ─ 02
Figure 13-8: Decoded I2C signal, and decode results
Purple = Address byte
Blue = R/W bit
Cyan = ACK bit
Red = NACK bit
Gold = Data byte
Turquoise = Write frame
Green = Read frame
Crimson red = Incomplete frame
The results are shown in two tables:
●
"Decode results": contains information about all decoded frames
●
"Details frame": contains more detailed information about the selected frame in the
"Decode results" table.
Decode results table
The "Decode results" table contains information about all decoded frames.
Table 13-2: Content of the Decode results table
Column Description
Index Index of the decoded frame
State Overall state of the frame.
"Insuffcient waveform length" indicates that the
frame is not completely contained in the acquisition.
Change the horizontal scale, or move the reference
point to the left to get a longer acquisition.
Start Time of frame start
Address type Address length, 7 bit or 10 bit
Address value (hex) Hexadecimal value of the address
R/W bit Value of the R/W bit
Data rate Value of the data rate
I²C (option R&S MXO5-K510)
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