Serial bus analysis
R&S
®
RTA4000
274
User Manual 1335.7898.02 ─ 08
Symbolic ID
If a label list with symbolic names was loaded and applied in the bus configuration, you
can select a symbolic name from the list instead of specifying the address. When you
select a name, the address fields are update with its address value.
Data condition
The data condition consists of the following settings:
●
Byte offset (position of the data pattern)
●
Length of the data pattern
●
Data pattern, see
If you want to trigger only on an address, and the data is not relevant, set all data bits
to "X".
Byte Offset ← Data condition
Sets the number of offset bytes to be ignored after the end of the address bytes. The
first byte of interest is the first byte after the offset bytes.
The minimum offset is 0
Bytes, the maximum offset is 4,095
Bytes.
Remote command:
Number of Bytes ← Data condition
Sets the number of full bytes you want to trigger on. Maximum 3 bytes are possible.
Note:
Entering data bits beyond the specified length of the pattern automatically
adjusts the "Number of Bytes" to include defined bytes.
Remote command:
Data: Bin / Hex pattern ← Data condition
Defines the data pattern in binary and hexadecimal format. To set an individual binary
bit or hex nibble (half byte), tap it and enter the value on the on-screen keypad. The
maximum pattern length is 3 bytes.
Remote command:
13.3.4
I²C decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1. In the "Bus" menu, enable "Decode".
2. In the "Display" menu, select the result display settings.
Chapter 13.1.2, "Displaying decode results"
3. In the "Bus Table" menu, enable the "Bus Table". Adjust the table settings.
Chapter 13.1.3, "Bus table: decode results"
I²C (option R&S
RTA-K1)
