User guide

UC864-E/G/WD/WDU Hardware User Guide
1vv0300766a Rev.4
- 03/02/09
Reproduction forbidden without Telit Communications S.p.A’s. written authorization - All Rights Reserved. Page 14 of 78
Pin Signal I/O Function
Internal
Pull up
Type
UC864-
E/G/WD/
WDU
48
USB_VBUS
AI
/A
O
Power supply for the internal USB transceiver.
This pin is configured as an analog input or an
analog output depending upon the type of
peripheral device connected.
47K Ω
pull-
down
4.4V
~5.25V
49
PWRMON O Power ON Monitor
1K Ω
CMOS
2.6V
50
VAUX1 - Power output for external accessories
51
CHARGE AI Charger input Power
52
CHARGE AI Charger input
10K Ω
pull-
down
Power
53
ON/OFF I
Input command for switching power ON or OFF
(toggle command). The pulse to be sent to the
UC864-E/G/WD/WDU must be equal or greater
than 1 second.
Pulled up
on chip
54
RESET I Reset input
10K Ω
55
VRTC AO VRTC Backup capacitor Power
Telit GPIOs
56
TGPIO_19 I/O Telit GPIO19 Configurable GPIO
CMOS
2.6V
57
TGPIO_11 I/O Telit GPIO11 Configurable GPIO
CMOS
2.6V
58
TGPIO_20 I/O Telit GPIO20 Configurable GPIO
CMOS
2.6V
59
TGPIO_04 I/O Telit GPIO4 Configurable GPIO
CMOS
2.6V
60
TGPIO_14 I/O Telit GPIO14 Configurable GPIO
CMOS
2.6V
61
TGPIO_15 I/O Telit GPIO15 Configurable GPIO
CMOS
2.6V
62
TGPIO_12 I/O Telit GPIO12 Configurable GPIO
CMOS
2.6V
63
TGPIO_10/
PCM_TX
I/O
Telit GPIO10 Configurable GPIO / PCM Data
Output
CMOS
2.6V
64
TGPIO_22 I/O Telit GPIO22 Configurable GPIO
CMOS
1.8V
65
TGPIO_18/
PCM_RX
I/O
Telit GPIO18 Configurable GPIO / PCM Data
input
CMOS
2.6V
66
TGPIO_03 I/O Telit GPIO3 Configurable GPIO
CMOS
2.6V
67
TGPIO_08 I/O Telit GPIO8 Configurable GPIO
CMOS
2.6V
68
TGPIO_06 / I/O Telit GPIO6 Configurable GPIO / ALARM CMOS