User's Manual

GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.2 – 2011-06-15
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights
Reserved. Page 71 of 97
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 GE/GC864-QUAD V2 and GE864-GPSfirmware and acts depending
on the function implemented.
The following GPIO are available on the GE/GC864-QUAD V2 and
GE864-GPS:
Ball
GE864
Pin
GC864
Signal I/O Function Type
Input /
output
current
Default
state
ON_OFF
state
During
Reset
state
Note
C1 70
TGPIO_01 I/O
GPIO01
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
E6 74
TGPIO_02 /
JDR
I/O
GPIO02
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(JDR)
C2 66
TGPIO_03 I/O
GPIO03
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
B3 59
TGPIO_04 /
TXCNTRL
I/O
GPIO04
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(RF
Transmission
Control)
K8 78
TGPIO_05 /
RFTXMON
I/O
GPIO05
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(RFTXMON)
B5 68
TGPIO_06 /
ALARM
I/O
GPIO06
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(ALARM)
L9 73
TGPIO_07 /
BUZZER
I/O
GPIO07
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(BUZZER)
K11 67
TGPIO_08 I/O
GPIO08
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
C9 76
TGPIO_09 I/O
GPIO09
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
H3 63
TGPIO_10 /
DVI_TX
I/O
GPIO10
Configurable
GPIO
CMOS
2.8V
1uA / 1mA INPUT 0 0
Alternate
function
(DVI_TX)