User Manual

Protocol Analysis
R&S
®
Scope Rider RTH
179User Manual 1326.1578.02 ─ 08
"Data"
Sets the trigger to a specified bit pattern that is expected on one of
the lines.
Remote command:
TRIGger:SPI:MODE on page 388
Datasource
Selects the line, on which the trigger pattern is expected.
Remote command:
TRIGger:SPI:DSRC on page 389
Pattern
Specifies the data pattern to be found on the specified line, in binary or hex format.
Enter the words in MSB first bit order.
See also Chapter 2.5.12.1, "Pattern Definition", on page 66.
Remote command:
TRIGger:SPI:DATA on page 389
Relation
Defines how the defined serial data pattern is compared with the acquired signal. The
instrument triggers if the acquired data word is equal or unequal the defined pattern.
Remote command:
TRIGger:SPI:DCONdition on page 389
Bit Offset
Sets the number of bits before the first bit of the pattern. These bits are ignored. The
first bit after CS or timeout is bit 0. For example, with bit offset = 2, bit 0 and bit 1 after
CS are ignored, and the pattern starts with bit 2.
Remote command:
TRIGger:SPI:DPOSition on page 389
Chip Select
Defines if the SPI bus uses a chip select line or not.
Remote command:
BUS:SPI:SSEL:STATe on page 388
8.3.4 SPI Decode Results
This chapter describes the comb display and the decode results table of decoded SPI
buses. Basic information on decoding and display of decode results is given in Chap-
ter 8.1.2, "Decode Results", on page 163.
SPI (Option R&S RTH-K1)