Ublox SARA-R422 - Page 17

SARA-R4 series - System integration manual
UBX-16029218 - R20 System description Page 17 of 128
C1-Public
Function
Pin Name
Pin No
I/O
Description
Remarks
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.
GNSS
PIOs
TXD_GNSS
19
47
O
GNSS data output
GNSS UART data output from internal u-blox M8 chipset.
Test-Point for diagnostic access is recommended.
See section 1.12 for functional description.
EXTINT
19
46
I
GNSS external
interrupt
GNSS external interrupt connected to u-blox M8 chipset.
See section 1.12 for functional description.
TIMEPULSE
19
45
O
GNSS Time Pulse
GNSS time pulse output driven by u-blox M8 chipset.
See section 1.12 for functional description.
ANT_ON
19
44
O
Antenna / LNA
enable
External GNSS active antenna and/or LNA on/off signal driven
by u-blox M8 chipset, connected to internal LNA.
See section 1.12 for functional description.
Reserved
RSVD
20
2
N/A
Reserved pin
Internally not connected.
See sections 1.13 and 2.10
RSVD
21
31
N/A
Reserved pin
Internally not connected.
See sections 1.13 and 2.10
RSVD
22
18,
48,49
N/A
Reserved pin
Internally not connected.
See sections 1.13 and 2.10
RSVD
23
34,35,
36,37
N/A
Reserved pin
Leave unconnected.
See sections 1.13 and 2.10
RSVD
24
44,45,
46,47
N/A
Reserved pin
Internally not connected.
See sections 1.13 and 2.10
Table 3: SARA-R4 series modules pin definition, grouped by function
19
SARA-R422M8S modules only
20
SARA-R410M, SARA-R412M modules only
21
SARA-R410M, SARA-R412M, SARA-R422, SARA-R422S modules only
22
SARA-R422, SARA-R422S, SARA-R422M8S modules only
23
SARA-R422 modules only
24
SARA-R422, SARA-R422S modules only