3-3
IM 701730-51E
Specification
3
3.2
SPI Bus Signal Analysis Function
Trigger Function
Item
Specifications
Trigger source
CH1:
SCK
CH2:
MOSI
CH3:
MISO
CH4:
SS
SPI bus signal trigger
Activates a trigger on the combination (AND logic) of the following four items. Assertion of SS
and Byte Count are always applicable (enabled). A Pattern and B Pattern can be enabled or
disabled.
• Assertion of SS: Activates a trigger on the assertion of SS.
• A Pattern:
Activates a trigger on true/false condition of the result of the comparison
with the MOSI data immediately after the assertion of SS. The length of
data that is compared can be set to 1 or 8 bytes.
• Byte Count:
Activates a trigger the specified bytes after the assertion of SS (after the A
pattern if A Pattern is enabled). The selectable range is 0 or 1000.
• B Pattern:
Activates a trigger on the true/false condition of the result of the
comparison with the data that is present after the byte count passes. The
data to be compared is selectable between MOSI and MISO. The data
length can be set to 1 to 8 bytes.
Select whether to compare the data immediately after the byte count
passes or continue comparing until the negation of SS.
Analysis Function
Item
Specifications
Signal input
CH1:
Clock signal (SCK)
CH2:
Data 1 (MOSI)
CH3:
Data 2 (MISO)
CH4:
CS signal (SS)
Number of data points that
Up to 80000 bytes (40000 bytes before and after the reference point)
can be analyzed
Analysis Result Display
Displays the analysis results using the following two methods.
• Waveform and the list of analysis results
Simultaneously displays the waveform and the list of analysis results (No. (analysis
number), Dt1 (hexadecimal display of the Data 1 value), Dt2 (hexadecimal display of the
Data 2 value), and CS (CS signal status or the CS signal name with high precedence).
• List of detailed analysis results
Displays No. (analysis number), Time (time from the analysis reference point), Dt1
(hexadecimal or binary display of the Data 1 value), Dt2 (hexadecimal or binary display of
the Data 2 value), CS (CS signal status or the CS signal name with high precedence).
Search Function
Item
Specifications
Data search
The following two types of search are possible. However, they cannot be used simultaneously.
• Pattern search (Frame Pattern)
Search the waveform by specifying a data pattern. If a waveform that matches the pattern is
found, the zoom box moves to that point and displays the specified waveform.
• Indefinite data search (Indefinite State)
Indefinite data can be searched.
Analysis Result Save Function
Item
Specifications
Data storage of the list of
Saves the list of detailed analysis results to a file in ASCII format (.txt extension).
detailed analysis results
