Rohde & Schwarz RTP Series - Basics of Protocol Analysis; 13 Protocol Analysis

Protocol analysis
R&S
®
RTP
511User Manual 1337.9952.02 ─ 12
13 Protocol analysis
Using the serial protocol options for the R&S RTP, you can analyze various serial pro-
tocols.
● Basics of protocol analysis....................................................................................511
● I²C (option R&S RTP-K1)......................................................................................521
● SPI bus (option R&S RTP-K1).............................................................................. 535
● UART/RS-232/RS-422/RS-485 (option R&S RTP-K2)......................................... 546
● CAN and CAN FD (option R&S RTP-K3/K9)........................................................ 555
● LIN (option R&S RTP-K3)..................................................................................... 582
● MIL-1553 (option R&S RTP-K6)............................................................................597
● ARINC 429 (option R&S RTP-K7).........................................................................614
● Ethernet 10BASE-T and 100BASE-TX (option R&S RTP-K8)..............................627
● Ethernet 100BASE-T1 (option R&S RTP-57)........................................................642
● Ethernet 1000BASE-T1 (option R&S RTP-K58)................................................... 660
● RFFE (option R&S RTP-K40)............................................................................... 678
● D-PHY (ption R&S RTP-K42)................................................................................699
● M-PHY and USB SSIC (option R&S RTP-K44 and K64)......................................715
● Custom: Manchester / NRZ (option R&S RTP-K50)M.......................................... 744
● 8b/10b (option R&S RTP-K52)..............................................................................774
● MDIO (option R&S RTP-K55)............................................................................... 787
● USB (option R&S RTP-K60)................................................................................. 800
● USB 3.1 (option R&S RTP-K61/K62)....................................................................827
● USBPD (option R&S RTP-K63)............................................................................ 848
● SpaceWire (option R&S RTP-K65)....................................................................... 861
● PCIe (option R&S RTP-K72/K73)......................................................................... 873
● DDR (option R&S RTP-K91/K93 ).........................................................................907
13.1 Basics of protocol analysis
Before you can analyze a serial signal, the bus has to be configured according to the
protocol and specifics of the signal. The configuration contains:
●
Assignment of the data and clock lines to the input channels
●
Logical thresholds
●
Protocol-specific settings
Serial data can be analyzed in several ways:
●
Triggering: You can trigger on various events that are typical for the selected proto-
col type, for example, on start and stop of messages, or on specified data patterns
in the message.
Triggering on a trigger event sequence is not supported, and holdoff settings are
not available.
●
Protocol decoding: The digitized signal data is displayed on the screen together
with the decoded content of the messages in readable form, and the decode
results are listed in a table.
Basics of protocol analysis