
USB Audio Design Guide 32/61
· S/PDIF Transmitter or MIDI
The diagrams Figure 24 and Figure 25 show the software layout of the code running
on the XS1-L chip. Each unit runs in a single core concurrently with the others units.
The lines show the communication between each functional unit. Due to the MIPS
requirement of the USB driver (see §3.17), only six cores can be run on the single
tile L-Series device so only one of S/PDIF transmit or MIDI can be supported.
Figure 24:
Single Tile
L-Series
Software
Core Diagram
(with S/PDIF
TX)
Figure 25:
Single Tile
L-Series
Software
Core Diagram
(with MIDI
I/O)
REV 6.1
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