1
1-13
IM 701730-51E
I
2
C Bus Signal Analysis Function
• I
2
C on Pattern
Activates a trigger on the SCL/SDA signal and the patterns of CH3 to CH4. A trigger
is activated only when the trigger conditions of the I
2
C Bus are met while the trigger
conditions of CH3 to CH4 are met.
8
9
1
1
8
9
Trigger condition of
the I
2
C Bus Signal is met
Condition not met
Trigger does not activate
SDA
SCL
CH3
CH4
Trigger condition of
the I
2
C Bus Signal is met
.....
.....
.....
.....
Condition met
Trigger activated here
.....
CH3 = L, CH4 = H, Condition = True
• Patterns of CH3 to CH4
H
The trigger source level is above the preset trigger level.
L
The trigger source level is below the preset trigger level.
X
Not used as a trigger source.
• Pattern Condition
True
A trigger is activated when the specified pattern of CH3 to CH4 is met.
False
A trigger is activated when the specified pattern of CH3 to CH4 is no longer met.
• I
2
C -> Pattern
Activates a trigger on the SCL/SDA signal and the preset patterns of CH3 to CH4.
The SCL/SDA trigger met condition is held until the trigger conditions of CH3 to CH4
are met.
8
9
1
1
8
9
SDA
SCL
CH3
CH4
Trigger condition of the I
2
C Bus Signal is met
.....
Condition met
Trigger activated here
Condition not met
Trigger does not activate
Holds the trigger met
condition of the I
2
C Bus signal
.....
.....
.....
.....
CH3 = L, CH4 = H, Condition = Enter
Clock Channel
You can set a clock channel from CH3 to CH4. If you do not wish to set a clock
channel, select None.
1.4 Setting the I
2
C Bus Signal Acquisition Conditions
