LPWA Module Series
BG77 Hardware Design
BG77_Hardware_Design 45 / 76
Figure 21: Reference Circuit of STATUS
3.15. Behaviors of RI*
AT+QCFG="risignaltype","physical" command can be used to configure RI behavior.
No matter on which port URC is presented, URC will trigger the behavior of RI pin.
The default behaviors of RI are shown as below.
Table 20:
Default Behaviors of RI
The default RI behaviors can be configured flexibly by AT+QCFG=“urc/ri/ring” command. For more
details about AT+QCFG*, please refer to document [2].
1. URC can be outputted from UART port, USB AT port and USB modem port, through configuration via
AT+QURCCFG command. The default port is USB AT port.
2. “*” means under development.
3.16. USB_BOOT Interface
State Response
Idle RI keeps in high level.
URC RI outputs 120ms low pulse when new URC returns.
NOTES
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