Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 System description Page 13 of 119
Function Pin Name Pin No I/O Description Remarks
I2S_WA /
SPI_MOSI
34 I/O I
2
S word alignment I
2
S word alignment, alternatively configurable as
SPI Master Output Slave Input
Not supported by “00”, “01” and “x2” product versions.
See section 1.10 for functional description.
See section 2.7 for external circuit design-in.
GPIO GPIO1 16 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO2 23 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO3 24 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO4 25 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO5 42 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO6 19 I/O GPIO 1.8 V GPIO with alternatively configurable functions.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
Reserved RSVD 33 N/A Reserved pin This pin can be connected to GND.
See sections 1.12 and 2.9
RSVD 2, 31 N/A Reserved pin Leave unconnected.
See sections 1.12 and 2.9
Table 3: SARA-R4/N4 series modules pin definition, grouped by function