3-25
IM 701450-51E
SPI Bus Signal Analysis Function
3
Setting the Chip Select Signal (CS)
• When Using CH4 to CH8 (CH4 on the DL7440) for the CS Signal
13.
Use jog shuttle & SELECT to select the CS signal from CH4 to CH8 (CH4) (CH
Level box).
The only channel that can be used on the DL7440 is CH4. You can select from CH4 to
CH8 on the DL7480.
14.
Use jog shuttle & SELECT to set the level for determining the status of the CS
signal (CH level box on the right).
15.
On the DL7480, repeat steps 13 and 14 as necessary to set the level for
determining the status of CH5 to CH8 as necessary.
16.
Use jog shuttle & SELECT to select whether to make the channel a CS signal
(ON/OFF) (each CH box).
The channel is enabled as a CS signal when the mark to the left of the channel is
highlighted.
Set the level for determining the status
of the CS signal. (On the DL7480, set
the level for determining the status of
CH5 to CH8 as necessary.)
Select whether the channel is to be a CS signal (ON/OFF).
Select a channel from CH4 to CH8 (4).
• When Using the Logic Input (Optional) Signal for the CS Signal
17.
Use jog shuttle & SELECT to select whether to make the logic input a CS
signal (ON/OFF) (A0 to A7 box).
Select whether the logic input signal
is to be a CS signal (ON/OFF).
• Selecting the Enable Status of the CS Signal
18.
Use jog shuttle & SELECT to select the enable status of the CS signal from H,
L, or X (Enable State box). I/O data is analyzed when the CS signal matches
the selected status.
•
If multiple CS signals are ON, select the enable status of the CS signal from H and L.
X cannot be selected.
•
The setting in the Enable State box applies to all CS signals.
•
If none of the CS signal is ON, the Enable State box displays “–”.
Select the enable status of the
CS signal from H, L, and X.
3.5 Analyzing/Searching Data
