Cavli Wireless C100QM - 3.5 USB Interface

Cavli Wireless C100QM/C10QM Hardware Manual
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3.5 USB interface
The USB interface of the C100QM/C10QM module provides a USB2.0 High-Speed
interface. The interface supports slave mode and does not support USB charging mode.
The USB interface pins are defined as follows:
Table 3-9 USB interface pin definition
Pin number
Signal name
IO
description
71
USB_VBUS
PI
USB detection
70
USB_DM
IO
USB differential signal -
69
USB_DP
IO
USB differential signal +
The module acts as a USB slave device and supports USB sleep and wake-up
mechanisms. The USB interface application reference circuit is as follows:
Figure 3-11 USB connection design circuit diagram
✧ The USB interface supports high-speed (480Mbps) and full-speed (12Mbps) modes,
so the trace design needs to strictly follow the USB2.0 protocol requirements, pay