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• Wakeup (wake up symbol): identified as "Wakeup:".
15.7 I2S Decoding (Optional)
The oscilloscope samples the I2S signal, and judges each data point to be logic "1" or
logic "0" according to the preset threshold level. I2S decoding is required to specify
the serial clock, channel signal, and the data's source channel. You need to set
Alignment, WS Low, and other parameters.
In the Decode menu, click or tap the drop-down button of Bus Type to select I2S,
then configure the parameters for I2S decoding.
Figure 15.18 I2S Decoding Menu
Bus Status
Click or tap the Bus Status on/off switch to enable or disable the bus decoding.
Quickly Apply Trigger Settings to Decoding
Copy trig indicates applying the trigger settings to the specified decoding setting.
Click or tap Copy Trig to apply the trigger settings to the specified decoding setting.
15.7.1 Source Setting
Set the SCLK source and threshold
• Click or tap the drop-down button of SCLK to select the desired channel (CH1-
CH4) as the serial clock source.
• Click or tap the input field of
SCLK Thre, and then use the pop-up numeric
keypad to set the threshold of the SCLK. You can also use the corresponding
Protocol Decoding
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
DHO4000 User Guide
217
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