Analog Devices SHARC ADSP-21368 Hardware Reference Manual page 306

SPORT Operation Modes
SPORTX_CLK
SPORTX_FS/WS
LEFT-JUSTIFI ED SAMPLE
PAIR MODE DATA OR
SPORTX_DA OR SPORTX_DB
Figure 5-4. Word Select Timing in I
serial bit stream occupies a separate channel. Each word belongs to the
next consecutive channel. For example, a 24-word block of data contains
one word for each of the 24 channels.
In previous SHARC processors, μ-law and A-law compres-
sion/decompression hardware companding was available on
transmitted and received words when the SPORT operated in
TDM mode. In the ADSP-21367/8/9 and ADSP-2137x processors
companding logic is available only in SPORT0, 2, 4, and 6 A chan-
nels and expansion logic is available only in SPORT1, 3, 5, and 7
A channels.
The SPORT can automatically select some words for particular channels
while ignoring others. Up to 128 channels are available for transmitting or
receiving or both. Each SPORT can receive or transmit data selectively
from any of the 128 channels.
Data companding and DMA transfers can also be used in multichannel
mode on channel A. Channel B can also be used in multichannel mode,
but companding is not available on this channel.
5-26
LSB n-1 MSB n
WORD n-1
RIGHT CHANNEL
ADSP-21368 SHARC Processor Hardware Reference
LSB n
WORD N
LEFT CHANNEL
2
S Mode
MSB n+1
WORD N+1
RIG HT CHANNEL