CDB5460A Datasheet, PDF (10/28 Pages) Cirrus Logic – Evaluation Board and Software

CDB5460A
Figure 1. Start-Up Window
2.4 Register Access in the Setup Window
The Evaluation software provides access to the
CS5460A’s internal registers in the Setup Window
(Figure 2). The user can enter the Setup Window
by pulling down Menu and selecting Setup Win-
dow, or by pressing F2 on the keyboard.
In the Setup Window, all of the CS5460A’s regis-
ters are displayed in hexadecimal notation, and also
decoded to provide easier readability. Refer to the
CS5460A data sheet for information on register
functionality and meanings.
2.4.1 Refresh Screen Button
The Refresh Screen button will update the contents
of the screen by reading all the register values from
the part. This usually takes a couple of seconds, but
it is a good idea to press the Refresh Screen button
when entering the Setup Window, or after modify-
ing any registers to reflect the current status of the
part.
2.4.2 CS5460A Crystal Frequency
The CS5460A accepts a wide range of crystal input
frequencies, and can therefore run at many differ-
ent sample rates. The crystal frequency being used
on the CS5460A should be entered in this box to
provide accurate frequency calculations in the FFT
window. This will also help the software decide
which functions can be performed reliably with the
evaluation system.
2.4.3 Configuration Register
In the Configuration Register box, the contents of
the Configuration Register can be modified by typ-
ing a hexadecimal value in the HEX: box, or by
changing any of the values below the HEX: box to
the desired settings. Note that when changing the
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