BrightSign LS322 Hardware - Manual (Page 14)

LS322, LS422 User Manual and Operations Guide
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All information provided in this reference manual applies to products under development. The characteristics and specifications of these products are subject to
change without notice. BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. © BrightSign LLC, 2015
The audio output is fed through an amplifier and sent directly to the audio output jack. It can drive a 32Ω load with a 2V
RMS signal.
On-Board Switch
The on-board switch is connected to the GPIO02. The GPIO02 is pulled low when the service (SVC) button is pressed.
Conversely, a pull-up on the button normally sets the GPIO02 to be pulled high.
Reset Switch/GPIO Button
The on-board switch is connected to the reset button. Pressing down the reset button will send a reset signal to the
system software.
NAND Flash
BrightSign players have a built-in NAND flash. All the code for the player is stored on the NAND flash. It may also be
possible to store some content on the NAND flash, which is connected directly to the BCM7208.
Ethernet
The 10/100 Base-T Ethernet is implemented on the LS322 and LS422 by directly interfacing with the BCM7208. The
player has on-board Ethernet magnetics and termination for the RJ-45 cable.
USB 2.0
The USB 2.0 high-speed host controller is implemented internally in the BCM7208 SOC chip. The board utilizes over-
current protected switches that can be used to turn the power to USB devices on or off (or to detect over-current
situations).