6.3

GPIO interface

Module GPIO configuration depends on the Data Package embedded firmware.

By default the GPIO1, GPIO4, GPIO5 and GPIO6 have specific functions.The remaining GPIOs are available to

the HOST processor that can configure them as GPIO or as alternate function ( HostMode_Sel, HostMode_Ind,

Host_WakeUp, Factory_Reset).

GPIO1: Bluetooth Connection Status

•

0: BT connection not present

•

1: BT connection is present

GPIO4: Module Power Status

•

1: module is in Active Mode

•

Blinking: module is in Deep Sleep Mode

GPIO if MFi chip is not used.

GPIO if MFi chip is not used.

Pins used as generic GPIO can be handled by the HOST processor using the following commands:

•

AT+AB GPIOConfig [GPIO pin] [I/O]

•

AT+AB GPIORead [GPIO pin]

•

AT+AB GPIOWrite [GPIO pin] [1/0]

For more details about GPIOs alternate functions refer to the AT Command Data Package user manual.

All GPIOs are capable of sinking and sourcing 4 mA of I/O current.

6.4

Reset circuit

Two types of system reset circuits are detailed below.

10. Host controlled reset circuit the RESET is active low, in the absence of a reset circuit the pin is internally

pulled up and therefore inactive.

SPBT3.0DP2

GPIO interface

DS11599 - Rev 7

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