15-31
IM DLM3054-01EN
Analyzing and Searching I
2
C Bus Signals (Option)
For the I
2
C data format, see “I
2
C Bus Trigger” in chapter 4, “Triggering.”
Bus Setup (Setup)
Serial Clock (SCL), Serial Data (SDA)
Set the SCL and SDA sources to one of the settings below.
CH1 to CH4/LOGIC,* Math1 to Math4
* CH4 or LOGIC, whichever the corresponding key is illuminated, can be selected. If you select LOGIC, select
the source bit (bit 0 to bit 7).
Level (Level) and Hysteresis (Hys)
These items are the same as those of the edge search.
Auto Setup (Auto Setup)
Executes auto setup based on the specified SCL and SDA sources.
The instrument sets the level and hysteresis and triggers on the start condition of the I
2
C bus signal.
You cannot execute auto setup when:
• SCL or SDA source is set to Math1 to Math4.
• State display is applied to a LOGIC bit set as the SCL or SDA source.
R/W Bit Inclusion (Include R/W)
When you set the address pattern input format to hexadecimal, you can choose to include or omit the R/W bit
when you set the address pattern.
• ON: Include the R/W bit (address + R/W bit: hexadecimal)
• OFF: Omit the R/W bit (address: hexadecimal, R/W bit: binary)
Decoded Display (Decode)
The colors that are used for the fields in the decoded display are as follows:
Start/Restart Condition Light gray (Light Gray)
Adr Light green (Light Green)
Data Cyan (Cyan)
R/W Pink (Pink)
Ack Yellow (Yellow)
General Call Green (Green)
Start Byte Orange (Orange)
HS Mode Orange (Orange)
Stop Condition Light gray (Light Gray)
You can select whether to show or hide Start/Restart Condition and Stop Condition.
15 Analyzing and Searching Serial Bus Signals
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