Hardware Interfaces; Usb Port - Teli LE910C1-NA Design Manual

LE910Cx HW User Guide

8. HARDWARE INTERFACES

Table 25 summarizes all the hardware interfaces of the LE910Cx module.
Interface
SGMII
HSIC
SD/MMC
SDIO
USB
SPI
I2C
UART
Audio I/F
GPIO
USIM
ADC
Antenna ports
Table 25: LE910Cx Hardware Interfaces

USB Port

The LE910Cx module includes a Universal Serial Bus (USB) transceiver, which operates
at USB high-speed (480Mbits/sec). It can also operate with USB full-speed hosts
(12Mbits/sec).
It is compliant with the USB 2.0 specification and can be used for control and data transfer
as well as for diagnostic monitoring and firmware update.
The USB port is typically the main interface between the LE910Cx module and OEM
hardware.
Note: The USB_D+ and USB_D- signals have a clock rate of 480 MHz.
The signal traces must be routed carefully. Minimize trace lengths,
number of vias, and capacitive loading. The impedance value should
be as close as possible to 90 Ohms differential.
1VV0301298 Rev. 33
For Ethernet support
x1 (Optional)
x1 dual voltage interface for supporting SD/MMC card
For WIFI support (1.8V only)
USB2.0, OTG support on LE910C1-LA, LE910C4-LA and
LE910C4-CN
Master only, up to 50 MHz
For sensors, audio control
2 HS-UART (up to 4 Mbps)
I2S/PCM, Analog I/O
10 ~ 27 (10 dedicated + 17 multiplexed with other signals)
x2, dual voltage each (1.8V/2.85V)
Up to x3
2 for Cellular, 1 for GNSS
Page 66 of 128
Not Subject to NDA
LE910Cx
2021-06-29