User's Guide

LE910Cx HW User Guide
Doc#: 1VV0301298
Rev. 13.0 Page 68 of 124 2019-07-15
NOTE:
Even if USB communication is not used, it is still highly recommended to
place an optional USB connector on the application board.
At least test points of the USB signals are required since the USB physical
communication is needed in the case of SW update.
NOTE:
USB OTG support is optional and is not supported by default. An external
5V power supply is required on the application board for supporting USB
OTGץ
HSIC Interface (Optional)
The application processor exposes a High-Speed Inter-Chip (HSIC). HSIC eliminates the
analog transceiver from a USB interface for lower voltage operation and reduced power
dissipation.
• High-speed 480 Mbps (240 MHz DDR) USB transfers are 100% host driver
compatible with traditional USB cable connected topologies
• Bidirectional data strobe signal (STROBE)
• Bidirectional data signal (DATA)
• No power consumption unless a transfer is in progress
Further details will be provided in a future release of this document.
SGMII Interface
The SOC includes an integrated Ethernet MAC with an SGMII interface, having the
following key features:
• The SGMII interface can be used connect to an external Ethernet PHY, or an
external switch.
• When enabled, an additional network interface will be available to the Linux kernel.
• Further details can be found at Ref 8: ETH_Expansion_board_Application Note
8.3.1. Ethernet Control interface
When using an external PHY for Ethernet connectivity, the LE910Cx also includes the
control interface for managing the external PHY
Table 25 lists the signals for controlling the external PHY