Protocol analysis
R&S
®
RTO6
532
User Manual 1801.6687.02 ─ 05
Audio Variant
Selects the protocol variant of the audio signal. The configuration possibilities exceed
the definitions of the standards.
"I2S Standard" Inter-IC sound standard audio format.
It uses the SCLK, WS and SDATA lines. The first byte of the audio
word is delayed one clock period from the leading edge of the word
select pulse.
"Left justified"
The left-justified data format uses the same lines as I²S standard. The
first byte of the audio word is aligned with the leading edge of the
word select pulse, or left justified within the frame. The format is
word-length independent.
"Right justified" The right-justified data format is similar to the left-justified, but the last
byte of the last word in the frame is aligned with the trailing edge of
the word select pulse, or right-aligned within the frame. This format is
not word-length independent.
"TDM"
The Time Division Multiplexed audio format is not standardized and
provides high flexibility for transfer of up to 8 audio data channels on
one line. Instead of words select, it uses frame synchronization pul-
ses to identify the beginning of a frame. On the data line, channel
blocks of a defined length are transmitted. Each block contains an
audio word followed by several zero bits to complete the block.
Remote command:
Audio signals (option R&S
RTO6-K510)
