LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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4.7. GRFC Interface
*
The module provides two generic RF control interfaces for the control of external antenna tuners.
Table 28: Pin Definition of GRFC Interface
Table 29: Truth Table of GRFC Interface
4.8. GPIO Interface
*
The module provides nine general-purpose input and output (GPIO) interfaces.
AT+QCFG=
"
gpio
"
command can be used to configure the status of GPIO pins. For more details about the AT command, see
document [2].
Table 30: Pin Definition of GPIO Interface
Pin Name Pin No.
I/O
Description
Comment
GRFC1
83
DO
Generic RF controller
1.8 V power domain.
GRFC2
84
DO
Generic RF controller
GRFC1 Level
GRFC2 Level
Frequency Range (MHz) Band
Low
Low
TBD
TBD
Low
High
TBD
TBD
High
Low
TBD
TBD
High
High
TBD
TBD
Pin Name Pin No.
I/O
Description
Comment
GPIO1
25
DIO
General-purpose input/output
1.8 V power domain.
GPIO2
26
DIO
General-purpose input/output
GPIO3
64
DIO
General-purpose input/output
GPIO4
65
DIO
General-purpose input/output
