Datasheet

Table Of Contents
LARA-R2 series - Data Sheet
UBX-16005783 - R15 Pin definition Page 21 of 48
No
Name
Power
domain
I/O
Description
Remarks
19
GPIO6
GDI
O
Clock output
Configurable clock output (see section 2.7).
Output driver class A. PU/PD class a.
Value at internal reset: T/PD.
See section 4.2.14 for detailed electrical specs.
20
GND
-
N/A
Ground
All the GND pins must be connected to ground
21
HOST_SELECT
GDI
I/O
Selection of module / host
processor configuration
Not supported by “02” and “62” product versions.
Output driver class A. PU/PD class a.
Value at internal reset: T/PD.
See section 4.2.14 for detailed electrical specs.
22
GND
-
N/A
Ground
All the GND pins must be connected to ground
23
GPIO2
GDI
I/O
GPIO
GPIO configurable as described in section 2.8.
Output driver class A. PU/PD class a.
Value at internal reset: T/PD.
See section 4.2.14 for detailed electrical specs.
24
GPIO3
GDI
I/O
GPIO
GPIO configurable as described in section 2.8.
Output driver class A. PU/PD class a.
Value at internal reset: T/PD.
See section 4.2.14 for detailed electrical specs.
25
GPIO4
GDI
I/O
GPIO
GPIO configurable as described in section 2.8.
Output driver class A. PU/PD class a.
Value at internal reset: T/PD.
See section 4.2.14 for detailed electrical specs.
26
SDA
DDC
I/O
I
2
C bus data line
Fixed open drain.
See section 4.2.13 for detailed electrical specs.
27
SCL
DDC
O
I
2
C bus clock line
Fixed open drain.
See section 4.2.13 for detailed electrical specs.
28
USB_D-
USB
I/O
USB Data Line D-
90 nominal differential characteristic impedance.
Pull-up, pull-down and series resistors as required by the
USB 2.0 specifications
[15] are part of the USB pin driver,
and need not be provided externally.
See section 4.2.11 for detailed electrical specs.
29
USB_D+
USB
I/O
USB Data Line D+
90 nominal differential characteristic impedance.
Pull-up, pull-down and series resistors as required by the
USB 2.0 specifications
[15] are part of the USB pin driver,
and need not be provided externally.
See section 4.2.11 for detailed electrical specs.
30
GND
-
N/A
Ground
All the GND pins must be connected to ground
31
RSVD
-
N/A
RESERVED pin
Leave unconnected.
32
GND
-
N/A
Ground
All the GND pins must be connected to ground
33
RSVD
-
N/A
RESERVED pin
This pin has special function: it must be connected to GND
to allow module to work properly.