User's Manual

CL865-DUAL Hardware User Guide
1vv0301104 Rev.1 – 2014-03-07
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 48 of 70
Mod. 0805 2011-07 Rev.2
11. General Purpose I/O
The CL865 module is provided by a set of Digital Input / Output pins
Input pads can only be read; they report the digital value (high or low) present on the pad at
the read time.
Output pads can only be written or queried and set the value of the pad output.
An alternate function pad is internally controlled by the CL865 firmware and acts depending
on the function implemented.
The following GPIOs are available on the CL865:
Pin
Signal
I/O
Function
Type
Default
State
Note
42
GPIO_01
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
DVI_WA0
41
GPIO_02
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
DVI_RX
40
GPIO_03
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
DVI_TX
39
GPIO_04
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
DVI_TX
29
GPIO_05
I/O
Configurable GPIO
CMOS 1.8V
INPUT
28
GPIO_06
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
ALARM
27
GPIO_07
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
26
GPIO_08
I/O
Configurable GPIO
CMOS 1.8V
INPUT
Alternate function
STAT_LED
WARNING:
During power up the GPIOs may be subject to transient glitches.