2-10
IM 701730-51E
• When the Type of SPI Bus Signal Trigger Condition Is Set to A Pattern
Data Byte
Select the data length of A Pattern in the range of 1 to 8 bytes.
Bit Pattern
You can set the bit pattern. When Pattern Format is set to Hex (hexadecimal), you
can enter X, 0 to 9, or A to F in units of 4 bits. When Pattern Format is set to Bin
(binary), you can enter X, 0, or 1.
If there is at least one “X” bit in a group of four bits in the binary display, the
corresponding hixadecimal display will show an “$”.
Condition
You can select from the following:
True
A trigger is activated when A Pattern is met.
False
A trigger is activated when A Pattern is not met.
• When the Type of SPI Bus Signal Trigger Condition Is Set to B Pattern
Selecting the data
Select the data to be used for B Pattern from the following:
MOSI (CH2)
Data written by the master to the slave
MISO (CH3)
Data read by the master from the slave
Data Byte
Select the data length of B Pattern in the range of 1 to 8 bytes.
Bit Pattern
You can set the bit pattern. When Pattern Format is set to Hex (hexadecimal), you
can enter X, 0 to 9, or A to F in units of 4 bits. When Pattern Format is set to Bin
(binary), you can enter X, 0, or 1.
If there is at least one “X” bit in a group of four bits in the binary display, the
corresponding hixadecimal display will show an “$”.
Condition
You can select from the following:
True
A trigger is activated when B Pattern is met.
False
A trigger is activated when B Pattern is not met.
After Byte Count
You can select from the following:
First Byte
Compares Pattern B to the bit pattern the byte count after the assertion of SS.
Anywhere
Continues to compare Pattern B until SS (CH4) is negated.
Setting the Assignment Conditions of the SPI Bus Signal
• Slope of CH1 (SCK) Edge
Select the slope from the following:
Rising edge
Falling edge
• Enable State of CH4 (SS)
Select the state from the following:
H Status when the SS signal is above the trigger level. A trigger is activated when the SS
signal is high.
L Status when the SS signal is below the trigger level. A trigger is activated when the SS signal
is low.
2.4 Setting SPI Bus Signal Acquisition Conditions
