Serial bus analysis
R&S
®
RTM3000
311User Manual 1335.9090.02 ─ 09
Figure 13-37: Decoded LIN signal with frame table and applied label list
gray = synchronization break, synchronization byte, correct checksum
yellow = identifier
green = parity bits
blue = data words (UART words)
13.7 Audio signals (option R&S RTM-K5)
The R&S RTM3000 can analyze several standard and de-facto industry standard sig-
nals: I²S Inter-IC Sound standard audio format, left justified and right justified data for-
mats and Time Division Multiplexed (TDM) audio format.
13.7.1 Audio protocols
All audio protocols use 3 lines:
●
The clock line generates the bit clock.
●
The word select line (WS, also known as word clock) defines the frame start and
the maximum length of the data word.
For pulse code modulated signals (I²S standard, left and right justified data for-
mats), the level of the WS signal assigns the data words to the left and right chan-
nels.
Audio signals (option R&S
RTM-K5)
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