Agilent Technologies 2000 X-Series, User Manual

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322 Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide
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I2C/SPI Triggering and Serial Decode
• Restart addresses appear in green along with the "S" character.
• Data values appear in white.
• "A" indicates Ack (low), "~A" indicates No Ack (high).
• Decoded text is truncated at the end of the associated frame when
there is insufficient space within frame boundaries.
• Pink vertical bars indicate you need to expand the horizontal scale (and
run again) to see decode.
• Red dots in the decode line indicate that more data can be displayed.
Scroll or expand the horizontal scale to view the data.
• Aliased bus values (undersampled or indeterminate) are drawn in pink.
• Unknown bus values (undefined or error conditions) are drawn in red.
Interpreting I2C Lister Data
In addition to the standard Time column, the I2C Lister contains these
columns:
• Restart — indicated with an "X".
• Address — colored blue for writes, yellow for reads.
• Data — data bytes.