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lib_xua/doc/rst/sw_resource.rst Executable file
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.. _usb_audio_sec_resource_usage:
Resource Usage
--------------
The following table details the resource usage of each
component of the reference design software.
.. table:: Resource Usage
+---------------+---------------+---------------------+-------------------------------------+
| Component | Cores | Memory (KB) | Ports |
+===============+===============+=====================+=====================================+
| XUD library | 1 | 9 (6 code) | ULPI ports |
| | | | |
+---------------+---------------+---------------------+-------------------------------------+
| Endpoint 0 | 1 | 17.5 (10.5 code) | none |
+---------------+---------------+---------------------+-------------------------------------+
| USB Buffering | 1 | 22.5 (1 code) | none |
+---------------+---------------+---------------------+-------------------------------------+
| Audio driver | 1 | 8.5 (6 code) | See :ref:`usb_audio_sec_audio` |
+---------------+---------------+---------------------+-------------------------------------+
| S/PDIF Tx | 1 | 3.5 (2 code) | 1 x 1 bit port |
+---------------+---------------+---------------------+-------------------------------------+
| S/PDIF Rx | 1 | 3.7 (3.7 code) | 1 x 1 bit port |
+---------------+---------------+---------------------+-------------------------------------+
| ADAT Rx | 1 | 3.2 (3.2 code) | 1 x 1 bit port |
+---------------+---------------+---------------------+-------------------------------------+
| Midi | 1 | 6.5 (1.5 code) | 2 x 1 bit ports |
+---------------+---------------+---------------------+-------------------------------------+
| Mixer | 2 | 8.7 (6.5 code) | |
+---------------+---------------+---------------------+-------------------------------------+
| ClockGen | 1 | 2.5 (2.4 code) | |
+---------------+---------------+---------------------+-------------------------------------+
.. note::
These resource estimates are based on the multichannel reference design with
all options of that design enabled. For fewer channels, the resource
usage is likely to decrease.
.. note::
The XUD library requires an 80MIPS core to function correctly
(i.e. on a 500MHz part only six cores can run).
.. note::
The ULPI ports are a fixed set of ports on the L-Series
device. When using these ports, other ports are
unavailable when ULPI is active. See the `XS1-L Hardware Design Checklist <http://www.xmos.com/published/xs1lcheck>`_ for further details.