3-30
IM 701450-51E
Explanation
Setting the Analysis Conditions: Analyze Setup
You can set the following conditions.
Clock Signal: Clock (CH1)
Apply the clock signal on the SPI Bus to CH1. The status of the I/O data is determined
by synchronizing to the clock signal. You can set the detection level, slope, and
hysteresis of the clock signal.
• Level
You can set the level for detecting the synchronization clock. The selectable range is
eight divisions within the screen. The resolution is 0.01 V/div.
• Hysteresis
You can set the hysteresis on the level for detecting the synchronization clock. The
selectable range is 0.3 divisions to 4.0 divisions. The resolution is 0.1 divisions.
• When the level of the clock signal changes from below the specified lower limit of
hysteresis to above and including the upper limit of hysteresis, it is detected as a
synchronization clock.
• When the level of the clock signal changes from above the specified upper limit of
hysteresis to below and including the lower limit of hysteresis, it is detected as a
synchronization clock.
• For all other cases, it is not detected as a synchronization clock.
• Slope: Polarity
You can select which slope edge, rising or falling, of the synchronization clock is to be
detected.
Rising slope
Falling slope
Data to Be Analyzed
The data that can be analyzed is the I/O data signal on the SPI Bus (Data1 and Data2).
The data in the following display range can be analyzed. Apply the Data1 and Data2
signals to CH2 and CH3.
• Waveform data that is displayed when waveform acquisition is stopped.
• History waveform data (waveform selected by Select Record on the History menu).
• Waveform data loaded from a storage medium.
• Level Used to Determine the Status of the Data to Be Analyzed: Thr Upper/Thr
Lower
You can set the level for determining the status of the data to be analyzed. The
selectable range is eight divisions within the screen. The resolution is 0.01 V/div. Thr
Upper must be greater than or equal to Thr Lower.
Level for determining 1 (Thr Upper)
You can set the level for determining the status 1. When the data being analyzed exceeds
the specified level, it is determined to be 1.
Level for determining 0 (Thr Lower)
You can set the level for determining the status 0. When the data being analyzed is below
the specified level, it is determined to be 0.
Between Thr Upper and Thr Lower
The status when the data being analyzed is between the levels specified by Thr Upper and
Thr Lower (including the Thr Upper and Thr Lower values) is determined to be indefinite data.
3.5 Analyzing/Searching Data