Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 System description Page 16 of 157
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