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GE864 Hardware User Guide
1vv0300694 Rev.10 - 10/06/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 44 of 69
10 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 GE864-QUAD / PY firmware and acts depending on the
function implemented. For Logic levels please refer to chapter 7.
The following GPIO are
available on the GE864-QUAD and GE864-PY:
Ball Signal I/O Function Type
Input /
output
current
Default
State
ON_OFF
state
State
during
Reset
Note
C1 TGPIO_01 I/O GPIO01 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
E6 TGPIO_02 I/O GPIO02 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
Alternate function
(JDR)
C2 TGPIO_03 I/O GPIO03 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
B3 TGPIO_04 I/O GPIO04 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
Alternate function
(RF Transmission
Control)
K8 TGPIO_05 I/O GPIO05 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
Alternate function
(RFTXMON)
B5 TGPIO_06 I/O GPIO06 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT Pict 01 1
Alternate function
(ALARM)
L9 TGPIO_07 I/O GPIO07 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
Alternate function
(BUZZER)
K11 TGPIO_08 I/O GPIO08 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
C9 TGPIO_09 I/O GPIO09 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
H3 TGPIO_10 I/O GPIO10 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
D1 TGPIO_11 I/O GPIO11 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
G4 TGPIO_12 I/O GPIO12 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
K10 TGPIO_13 I/O GPIO13 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
B4 TGPIO_14 I/O GPIO14 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
F5 TGPIO_15 I/O GPIO15 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
H6 TGPIO_16 I/O GPIO16 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
H5 TGPIO_17 I/O GPIO17 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
K7 TGPIO_18 I/O GPIO18 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
B1 TGPIO_19 I/O GPIO19 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
C3 TGPIO_20 I/O GPIO20 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 0
L10 TGPIO_21 I/O GPIO21 Configurable GPIO CMOS 2.8V 1uA / 1mA INPUT 1
E8 TGPIO_22 I/O GPIO22 Configurable GPIO
CMOS 1.8V
(not 2.8V
!!)
1uA / 1mA INPUT 0