User's Manual

HC864-AUTO Hardware User Guide
1vv0300946 Rev.4 – 2012-12-27
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 51 of 77
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 only be read and 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 HC864-AUTO firmware and acts
depending on the function implemented.
The following GPIOs are available on the HC864-AUTO.
PIN Signal I/O Function Type
Drive
strength
Default
State
ON_OF
F State
Reset
State
Note
70 TGPIO_01 I/O
GPIO01
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
74 TGPIO_02 I/O
GPIO02
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
66 TGPIO_03 I/O
GPIO03
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
59 TGPIO_04 I/O
GPIO04
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
78 TGPIO_05 I/O
GPIO05
Configurable
GPIO
CMOS
2.6V
2mA INPUT LOW LOW
68 TGPIO_06 I/O
GPIO06
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
Alternate function
(ALARM)
73 TGPIO_07 I/O
GPIO07
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
67 TGPIO_08 I/O
GPIO08
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
76 TGPIO_09 I/O
GPIO09
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
63 TGPIO_10 I/O
GPIO10
Configurable
GPIO
CMOS
2.6V
2mA INPUT LOW LOW
57 TGPIO_11 I/O
GPIO11
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
62 TGPIO_12 I/O
GPIO12
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW
77 TGPIO_13 I/O
GPIO13
Configurable
GPIO
CMOS
1.8V
2mA INPUT LOW LOW