Instructions

Protocol Analysis
R&S
®
Scope Rider RTH
187User Manual 1326.1578.02 ─ 15
R/W Bit
Toggles the trigger condition between read and write access of the master. Select
"Either" if the transfer direction is not relevant for the trigger condition.
Remote command:
TRIGger:I2C:ACCess on page 433
Data 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 3.6.12.1, "Pattern Definition", on page 71.
Remote command:
TRIGger:I2C:DATA on page 433
Data Relation
Sets how the defined serial data pattern is compared with the acquired signal. The
instrument triggers if the acquired data pattern is equal or unequal the defined pattern.
Remote command:
TRIGger:I2C:DCONdition on page 434
Byte Offset
Sets the number of bytes before the first byte of the data pattern. These bytes are
ignored.
Remote command:
TRIGger:I2C:DPOSition on page 434
9.2.4 I²C Label List
Label lists are protocol-specific. Label lists for I
2
C are available in CSV and PTT for-
mat.
An I
2
C label file contains three values for each address:
●
Address type, 7-bit or 10-bit long
●
Address value
●
Symbolic label: name of the address, specifying its function in the bus network.
Example: I
2
C PTT file
# ----------------------------------------------------------------------------
@FILE_VERSION = 1.00
@PROTOCOL_NAME = i2c
# ---------------------------------------------------------------------------
# Labels for I2C protocol
# Column order: Identifier type, Identifier value, Label
# ---------------------------------------------------------------------------
7,0x1E,Voltage
7,38h,Pressure
7,2Ah,Temperature
7,16h,Speed
I2C (Option R&S
RTH-K1)