Protocol analysis
R&S
®
RTE
768User Manual 1326.1032.02 ─ 20
Bit Rate
Typically, a single bit rate is clearly specified in Manchester protocols; however, some
implementations use a variable bit rate. By default, R&S RTE-K50 automatically deter-
mines the bit rate with no user input required. However, there are fundamental ambigu-
ities possible in Manchester, if the bitrate is unknown. In particular, sequences like
"0000", "1111", "0101", "1010", and many situations involving "H" and "L" violations,
cannot be decoded without a known bit rate. The situation becomes even less defined
with eventual Manchester coding violations. In these situations, a fixed "Bit Rate" set-
ting has to be provided by the user to bypass the software's estimation algorithm.
13.14.2 Custom: Manchester / NRZ configuration
If you need information on how to get started with configuring the custom serial bus
setup, see Chapter 13.14.2.5, "Configuring custom Manchester / NRZ signals",
on page 787. Otherwise proceed with the configuration settings.
13.14.2.1 Custom: Manchester / NRZ configuration settings
Access: [PROTOCOL] > "Decode" tab > "Protocol" = Custom
Make sure that the tab of the correct serial bus is selected.
Figure 13-71: Coding standard selection in the serial bus protocol configuration dialog
Custom: Manchester / NRZ (option R&S RTE-K50)M
To Next Page
Loading...
