LTE Module Series
BG96-NA Hardware Design
BG96-NA_Hardware_Design Confidential / Released 42 / 64
The default behaviors of RI are shown as below.
Table 18:
Default
Behavior of RI
State
Response
Idle
RI keeps athigh level.
URC
RI outputs 120ms low pulse when new URC returns.
The RI behavior can be changed by
AT+QCFG=“urc/ri/ring”
command.Please refer to
document [2]
for
details.
3.16. USB_BOOT Interface
BG96-NA provides a USB_BOOT pin. During development or factory production, USB_BOOT pin can
force the module to boot from USB port for firmware upgrade.
Table 19: Pin Definition of USB_BOOT Interface
Pin Name
Pin No.
I/O
Description
Comment
USB_BOOT 75
DI
Force the module to boot from USB
port
1.8V power domain.
Active high.
If unused, keep it open.
The following figure shows a reference circuit of USB_BOOT interface.
Figure 22: Reference Circuit of USB_BOOT Interface
