1-14
IM 701450-51E
• Patterns of CH3 to CH8 (CH3 and CH4 on the DL7440)
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.
For the channel set as the clock channel, set the slope to (rising edge) or (falling edge), not
the pattern.
• Pattern Condition
You can set the pattern condition only when a clock channel is not specified. Select
from the following:
Enter
A trigger is activated when the specified pattern of CH3 to CH8 (CH3 and CH4 on
the DL7440) is met.
Exit
A trigger is activated when the specified pattern of CH3 to CH8 (CH3 and CH4 on
the DL7440) is no longer met.
If you set the clock channel to any of the channels from CH3 to CH8 (CH3 and CH4 on the
DL7440), the pattern condition is set to true.
Setting the Trigger Level, Trigger Coupling, Etc.: Level/Coupling
Set the trigger level, hysteresis, trigger coupling, and HF rejection of each channel.
For details on the trigger level, hysteresis, trigger coupling, and HF rejection, see page 6-
17 in section 6.8, “Setting the A->B(N) Trigger (ENHANCED)” in the
DL7440/DL7480
User’s Manual (IM701450-01E).
Setting the Trigger Mode
Set the conditions for updating the displayed waveforms as a trigger mode. There are
five trigger modes: auto mode, auto level mode, normal mode, single mode, and single
(N) mode.
For details on the trigger modes, see section 6.1, “Selecting the Trigger Mode” in the
DL7440/DL7480 User’s Manual (IM701450-01E).
Setting the Record Length
The record length sets the amount of data to be written into the acquisition memory. The
selectable maximum record length varies depending on the model.
16 MW memory model (701460 and 701480)
1 k, 10 k, 50 k, 100 k, 250 k, 500 k, 1 M, 2 M, 4 M, 8 M (, 16 M)
4 MW memory model (701450 and 701470)
1 k, 10 k, 50 k, 100 k, 250 k, 500 k, 1 M, 2 M (, 4 M)
*
The value inside the parentheses is selectable only when interleave mode is ON.
For details on the record length, see section 7.2, “Setting the Record Length” in the
DL7440/DL7480 User’s Manual (IM701450-01E). For details on interleave mode, see
section 7.3, “Using Interleave Mode.”
Starting/Stopping the Acquisition of the I
2
C Bus Signal
When you start the acquisition of the I
2
C Bus signal, triggers are activated on the
specified trigger conditions.
To proceed to the analysis, you stop the acquisition of the I
2
C Bus signal.
1.4 Setting the I
2
C Bus Signal Acquisition Conditions
