I2C/SPI Triggering and Serial Decode 24Keysight InfiniiVision 2000 X-Series Oscilloscopes User's Guide 331The Set all Bits softkey will set all bits in the data string to the value of the 0 1 Xsoftkey.SPI Serial DecodeTo set up the oscilloscope to capture SPI signals, see “Setup for SPI Signals" onpage 325.To set up SPI serial decode:1 Press [Serial] to display the Serial Decode Menu.2 Press the Word Size softkey; then, turn the Entry knob to select the number ofbits in a word.3 Press the Bit Order softkey; then turn the Entry knob to select the bit order, mostsignificant bit first (MSB) or least significant bit first (LSB), used whendisplaying data in the serial decode waveform and in the Lister.4 If the decode line does not appear on the display, press the [Serial] key to turn iton.5 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and decodedata.NOTE For SPI decode information see “SPI Serial Decode" on page 331.NOTE For SPI triggering setup see “SPI Triggering" on page 329.NOTE If the setup does not produce a stable trigger, the SPI signal may be slow enough that theoscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode softkeyto set the trigger mode from Auto to Normal.
