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Serial bus analysis
R&S
®
RTB2000
226
User Manual 1333.1611.02 ─ 11
Figure 12-6: SPI trigger menu
Figure 12-7: SPI trigger settings with an example of an SPI serial pattern
9
= Hex value of the 1
st
nibble, with the binary value 1001
$ (blue) = Hex value of the 3
rd
nibble, which includes some "X" bits. The blue color indicates that the key-
pad is active for this nibble.
X (white) = The 6
th
nibble is a "don't care" nibble, as it consists of "X" bits, only
$ (white) = The 7
th
nibble is only half contained in the specified pattern length of 26 bits
X (gray) = The 8
th
nibble is not contained in the specified pattern
Source
If both MOSI and MISO lines are configured for analysis, select which line is the trigger
source.
Remote command:
SPI Trigger
Selects the trigger condition.
SPI bus (option R&S
RTB-K1)