Agilent Technologies 4000 X-Series User Manual page 429

2 In the Trigger Menu, press the Trigger softkey; then, turn the Entry knob
3 Press the Trigger Setup softkey to open the SPI Trigger Setup Menu.
4 Press the Trigger softkey; then, turn the Entry knob to select the trigger
5 Press the #Bits softkey, and turn the Entry knob to set the number of
6 For each bit in the MOSI/MISO Data string:
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
to select the serial slot (Serial 1 or Serial 2) on which the SPI signals
are being decoded.
condition:
Master-Out, Slave-In (MOSI) Data - for triggering on the MOSI data
•
signal.
Master-In, Slave-Out (MISO) Data - for triggering on the MISO data
•
signal.
bits (#Bits) in the serial data string.
The number of bits in the string can be set anywhere from 4 bits to 64
bits. The data values for the serial string are displayed in the
MOSI/MISO Data string in the waveform area.
a Press the Bit softkey; then, turn the Entry knob to select the bit
location.
As you rotate the Entry knob, the bit is highlighted in the Data
string shown in the waveform area.
b Press the 0 1 X softkey to set the bit selected in the Bit softkey to 0
(low), 1 (high), or X (don't care).
I2C/SPI Triggering and Serial Decode
25
429