User's Manual

UL865-N3G Hardware User Guide
1VV0301177 Rev 2– 2015-04-20
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 49 of 70
Mod. 0805 2011-07 Rev.2
WARNING:
During power up the GPIOs may be subject to transient glitches.
Also the UART‘s control flow pins can be usable as GPI/O.
Pin Signal I/O Function Type
Input /
output
current
Default
State
ON_OFF
state
State
during
Reset
Note
1 GPO_A O Configurable GPO
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C109/DCD
2 GPO_B O Configurable GPO
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C125/RING
3 GPO_C O Configurable GPO
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C107/DSR
4 GPI_E I Configurable GPI
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C108/DTR
5 GPI_F I Configurable GPI
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C105/RTS
6 GPO_D O Configurable GPO
CMOS
1.8V
1uA/1mA INPUT 0 0
Alternate function
C106/CTS