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Exynos 850 is set to low, '0', an external interrupt for Exynos 850 SoC as device mode. When 'HOST_SEL' is logic level high,
'1', the USB data lines are routed to U16 (a 4-port USB HUB) and the Exynos 850 is set to host mode.
USB Host ports
The WinLink E850 Development Board supports three USB host port via a USB2.0 hub (U16 LAN9514). Its upstream signal is
connected to USB_P0 interface of Exynos 850.
Port 1 of the USB HUB is routed to P2, a Type 'A' USB Host connector
Port 2 of the USB HUB is routed to P3, a Type 'A' USB Host connector
Port 3 of the USB HUB is routed to the High Speed Expansion connector.
USB Device ports
The WinLink E850 Development Board implements a device port. The port is located at J1, a Micro USB type B. It is routed to
USB_P0 interface of Exynos 850.
Note: the board can work in one mode at a time, Host mode or Device mode, not both.
Audio
The WinLink E850 Development Board has four audio ports: BT, HDMI, PCM and analog port. The analog port which
connected to PMIC(U2:S2MPU12) includes a stereo handset IO outputs.
DC Power
The WinLink E850 Development Board can be powered by two ways:
12V to 18V supply from a dedicated DC jack(CN2)
12V to 18V supply from the DC_IN pins on the Low Speed Expansion Connector(J5)
Power Measurement
The WinLink E850 Development Board has current sense resistors R42.
Reference
Net
R42
V_SYS
UART
The WinLink E850 Development Board has two UART ports (UART1 / UART0), both present on the Low Speed Expansion
connector. They are routed to the UART1 and UART0 interface of Exynos 850 separately.
WinLink
E850-96Board
Description
To measure the current of V_SYS(5V) power
Development Board Hardware User Guide
10/21
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