SARA-R5 datasheet(18/43 Pages) U-BLOX

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SARA-R5 series - Data sheet

UBX-19016638 - R06

Interfaces

Page 18 of 43

C1-Public

2.7 GPIO

SARA-R5 series modules include pins that can be configured as general purpose input/output or to

provide custom functions as summarized in Table 4. For further details, see the SARA-R5 series

system integration manual [2] and the SARA-R5 series AT commands manual [1], +UGPIOC,

+UGPIOR, +UGPIOW, +UTEST AT commands).

Function

Description

Default GPIO

Configurable GPIOs

General purpose

output

Output to set high or low digital level

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

General purpose input Input to sense high or low digital level

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

Network status

indication

Output indicating cellular network status: registered, data

transmission, no service

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

External GNSS supply

enable 5

Output to enable/disable the supply of an external u-blox

GNSS receiver connected to the cellular module by the DDC

(I2C) interface

GPIO2 5

External GNSS data

ready 5

Input to sense when an external u-blox GNSS receiver

connected to the module is ready for sending data over the

DDC (I2C) interface

GPIO3 5

SIM card detection

Input for SIM card physical presence detection, to optionally

enable / disable SIM interface upon detection of external

SIM card physical insertion / removal

GPIO5

Module status

indication

Output indicating module status: power-off or deep-sleep

mode versus idle, active or connected mode

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

Module operating

mode indication

Output indicating module operating mode: power-off,

deep-sleep or idle mode versus active or connected mode

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

Ring indicator

Output providing events indicator

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

Last gasp

Input to trigger last gasp notification

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

Time pulse output

Output providing accurate time reference, as a sequence

with 1 PPS or as single time pulse, based on the GNSS

system or the LTE system

GPIO6

Time stamp of external

interrupt

Input triggering via interrupt the generation of an URC time

stamp over AT serial interface

EXT_INT

Fast power-off

Input to trigger emergency fast and safe shutdown of the

module (as triggered by AT+CFUN=10 command)

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6

External GNSS time

pulse 5

Input to receive an accurate time reference, as a sequence

with 1 PPS from an external GNSS system

SDIO_CMD

External GNSS time

stamp of external

interrupt 5

Output triggering via interrupt the generation of an URC

time stamp from an external GNSS system

GPIO4

Pin disabled

Tri-state with an internal active pull-down enabled

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6,

EXT_INT, SDIO_CMD

GPIO1, GPIO2, GPIO3,

GPIO4, GPIO5, GPIO6,

EXT_INT, SDIO_CMD

Antenna dynamic

tuning

Output for real time control of an antenna tuning IC

according to the LTE band used by the module

I2S_TXD, I2S_WA

Table 4: GPIO custom functions configuration

5 SARA-R500S and SARA-R510S modules only.

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