BGS2T AT Command Set
2.8 AT+CFUN
BGS2T_ATC_V01.301
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1/31/12
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2.8
AT+CFUN Functionality Level
controls the BGS2T's functionality level. It can be used to reset the ME, to choose one of the power
save (SLEEP) modes or to return to full functionality.
Intended for power saving, SLEEP mode usage reduces the functionality of the ME to a minimum and thus min-
imizes the current consumption. Further information, particularly power supply ratings during the various operat-
ing modes and the timing of UART signals in SLEEP mode can be found in the
.
Power save (SLEEP) modes fall in two categories:
•
NON-CYCLIC SLEEP mode selectable with
•
and CYCLIC SLEEP modes selectable with
= 7 or 9.
NON-CYCLIC SLEEP mode permanently blocks the UART.
The benefit of CYCLIC SLEEP mode is that the UART remains accessible and that, in intermittent wakeup peri-
ods, characters can be sent or received without terminating the selected mode. This allows the ME to wake up
for the duration of an event and, afterwards, to resume power saving. By setting/resetting the CTS signal the ME
indicates to the application whether or not the UART is active. In all CYCLIC SLEEP modes, you can enter
=1 to permanently wake up BGS2T and take it back to full functionality.
For NON-CYCLIC and CYCLIC SLEEP mode both the ME and the application connected to the UART must be
configured to use hardware flow control. The default setting of hardware flow control is
0 which must be
3. For use after restart you are advised to add it to the user profile saved with
. A summary
of all SLEEP modes and the different ways of waking up the module on the UART can be found in Section
Wake up the ME from SLEEP mode
test command returns the values of the supported parameters.
read command returns the current functionality value.
write command can be used to reset the ME, to choose one of the SLEEP modes or to return to full
functionality.
Syntax
Test Command
AT+CFUN=?
Response(s)
+CFUN:
(list of supported
OK
Read Command
AT+CFUN?
Response(s)
+CFUN:
OK
Write Command
AT+CFUN=
[,
Response(s)
OK
ERROR
+CME ERROR:
PIN ASC0 MUX1 MUX2 MUX3
Last
Reference(s)
-
+
±
±
±
+
-
3GPP TS 27.007
Confidential / Released