Motorola Mobility LLC T56KT1 User Manual

The G30 incorporates several interface signals for controlling and monitoring the module's 
operation. The following paragraphs describes these signals and their operation.

 gives a description of the controls and indicators signals.

RESET_IN

OC

External reset input

External reset signal 
voltage domain.

VREF

O

Reference voltage supply

Max current source 
30mA.

VRTC

I/O

Real Time Clock Supply 
Output/Input

VRTC = 2.0 V (typical) 
2mA
Connect a 47uF capacitor 
to ground.

WKUPO

I/O

GPIO

Generic digital interfaces
voltage domain.
Output driver class F.
PU/PD class B.

O

Wake-Up Out

WKUPI

I/O

Capture/Compare

Generic digital interfaces
voltage domain.
Output driver class C.
PU/PD class B.

I

Wake-Up  In

ANT_DET

I/O

GPIO

Generic digital interfaces
voltage domain.
Output driver class F.
PU/PD class B.

O

Antenna Detect

GPRS

I/O

GPIO

Generic digital interfaces
voltage domain.
Output driver class F.
PU/PD class B.

O

GPRS

GPIO1

I/O

GPIO

Generic digital interfaces
voltage domain.
Output driver class F.
PU/PD class B.
Value at reset: T.

GPIO2

I/O

GPIO

Generic digital interfaces
voltage domain.
Output driver class F.
PU/PD class B.

GPIO3/SDA

I/O

I

2

C bus data line

I

2

C interface

voltage domain.
PU drain.

I/O

GPIO