Table of Contents
Advertisement
Reference Guide
Operating Mode
Alarm Mode
Serial Port Auto Shut
Down Feature
FLASH LED
Activated/Deactivated
6.2.
Working Mode Features
The table below sums up the feature availability in each mode.
Table 33.
USR3500 Operating Modes Feature Availability
Features
Alarm
Wake-up Open AT
Application
Framework on timer
events
GSM/GPRS paging
(alert from the
network for
incoming call,
incoming SMS or
incoming GPRS
data)
SIM
UARTs
USB
SPIs
2
I
C
GPIO
ADCs
Buzzer
Keypad
External IT
Flash LED
Description
Low power consumption mode, the only feature which is available in this mode is the
alarm wake up.
When the alarm clock is set for the modem with ALL of the following conditions:
before the alarm time is up
•
with the ON/OFF signal pulled to GND
•
with AT+CPOF entered from a computer that is connected to the modem
•
The serial link can be shut down when there is no activity between the DTE and the
modem.
This auto shut down feature can be enabled by AT command. Refer to section
3.1.2.4 Serial Port Auto Shut Down Feature for more information on this feature.
The modem Flash LED can be enabled or disabled by AT command. Refer to
section for more information on this feature.
ACTIVE
Mode
Alarm
with GSM
Mode
Stack in
Idle
√
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
Rev 1.0
SLEEP
Mode
ACTIVE
with GSM
Mode
Stack in
Idle
√
√
√
√
√
-
-
-
-
√
-
√
-
√
-
√
-
√
-
√
-
√
√
√
√
√
√
√
Power Consumption
SLEEP
Connected
Mode
Mode
√
√
√
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
-
√
√
√
√
√
√
√
1/27/14
Transfer
Mode
√
√
√
√
√
√
√
√
√
√
√
√
√
√
43
43
Advertisement
Table of Contents
