User Guide

GE9
GE9GE9
GE910 Hardware User Guide
10 Hardware User Guide10 Hardware User Guide
10 Hardware User Guide
1vv0300962 Rev.4 2012-06-25
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 52 of 73
Mod. 0805 2011-07 Rev.2
11. General Purpose I/O
The general purpose I/O pads can be configured to act in three different ways:
• input
• output
• alternate function (internally controlled)
Input pads can 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 GE910 firmware and acts depending on
the function implemented.
The following table shows the available GPIO on the GE910 .
PAD Signal I/O Function Type
Drive
strength
Default
State
Note
C8
GPIO_01 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT Alternate function STAT LED
C9
GPIO_02 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
C10
GPIO_03 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
C11
GPIO_04 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
B14
GPIO_05 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
C12
GPIO_06 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
C13
GPIO_07 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
K15
GPIO_08 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
L15
GPIO_09 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT
G15
GPIO_10 I/O Configurable GPIO CMOS 1.8V 1 mA INPUT