OLIMEX© 2013
A10S-OLinuXino-MICRO user's manual
6.7 USB_HOST
The USB_HOST also features Low Loss Power Distribution Switch SY6280 which protects the
board in case the devices you have plugged to the USB_HOST try to draw more current than
523mA combined. The maximum current available on the 5V USB_HOST is exactly 523mA.
The SY6280 controlling the USB_HOST is enabled by USB1-DRV (processor pin D3). Via the
jumper named “+5V/USB1-DRV” (SMT one) this USB1-DRV signal might be freed connecting the
SY6280 directly to 5V (high position).
USB_HOST connector
Pin #
Signal names
Processor pin
1
5V
Connected to SY628
2
UDM1
N18
3
UDP1
N17
4
GND
-
5
GND
-
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