USB Audio 2.0 Reference Design, XS1-L1 Edition Hardware Manual (1.0)
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8
Push-Button Switches [H]
The board provides two push-button switches whose states can be sampled at any
time by software. The layout of these switches is shown below:
A
B
The switches are connected to two 1-bit ports, the mapping of which can be seen in
the port map.
The port will go logic low when the button is pressed.
9
User LEDs [I]
The board provides two user LEDs that can be driven by software. The layout of
these LEDs is shown below:
B
A
The LEDs are connected to two bits of port 32A as shown in the port map. Setting
the relevant bit high will turn the LED on.
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