User Manual

Acquire the Sign
al
Use the side menu buttons to define
parameters for the inputs, such as speci fic
signalstoana
nalog or digital channel.
Define
Inputs
If you select Parallel, push the side menu
button to ena
ble or disable Clocked Data .
Clocked
Data
Yes
No
Push the side
menu button to select the
Clock Edge on which to clock data: rising
edge, falling edge, or both edges.
Clock
Edge
Turn Multip
urpose a to selec t the Number
of Data Bits in the parallel bus.
Number of
Data Bits
(a) 16
Turn Multipurpose a to select the desired
bit to defin
e.
Turn M u ltipurpose b to select the desired
analog or digital channel as the source for
the bit.
Define Bits
(a) Bit 15
(b) D15
4. Push Th resholds.
Bus B1
Parallel
Define
Inputs
Thresholds B1 Label
Parallel
Bus
Display
Event
Table
You can set the threshold for all channels in
the parallel or serial bus from a l ist of preset
values
. The preset values vary, depending
on the bus type.
Alternatively, you c an set the threshold to a
specifi
c value for the signals that make up the
parallel or serial bus. To do so, push Select
on the side menu and turn Multipurpose a
to sel
ect a Bit or a Channel number (Signal
name).
Then, turn Multipurpose b to define the
voltage level above which the oscilloscope
treats the signal as a logic high and below
which as a logic low.
NOTE. Some buses use two thresholds per
channel.
MDO3000 Series Oscilloscopes User Manual 69