Hardware Interface Description - KORE Telematics
Hardware Interface Description - KORE Telematics
Hardware Interface Description - KORE Telematics
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XT55/56 <strong>Hardware</strong> <strong>Interface</strong> <strong>Description</strong><br />
Confidential / Released<br />
s<br />
3.6.6 Wake up XT55/56 from SLEEP mode<br />
A wake-up event is any event that causes the module to draw current. Depending on the<br />
selected mode the wake-up event either switches SLEEP mode off and takes XT55/56 back<br />
to AT+CFUN=1, or activates XT55/56 temporarily without leaving the current SLEEP mode.<br />
Definitions of the state transitions described in Table 11:<br />
Quit<br />
= XT55/56 exits SLEEP mode and returns to AT+CFUN=1.<br />
Temporary = XT55/56 becomes active temporarily for the duration of the event and the<br />
mode-specific follow-up time after the last character was sent or received<br />
on the serial interface.<br />
No effect: = Event is not relevant in the selected SLEEP mode. XT55/56 does not<br />
wake up.<br />
Table 11: Wake-up events in NON-CYCLIC and CYCLIC SLEEP modes<br />
Event<br />
Selected mode<br />
AT+CFUN=0<br />
Selected mode<br />
AT+CFUN=5 or 6<br />
Ignition line No effect No effect No effect<br />
GSM_RTS0 or GSM_RTS1 1)<br />
(falling edge)<br />
Unsolicited Result Code<br />
(URC)<br />
Quit<br />
No effect (GSM_RTS<br />
is only used for flow<br />
control)<br />
Selected mode<br />
AT+CFUN=7, 8, 9<br />
Mode 7 and 8: No<br />
effect (GSM_RTS is<br />
only used for flow<br />
control)<br />
Mode 9: Temporary<br />
Quit Quit Temporary<br />
Incoming voice or data call Quit Quit Temporary<br />
Any AT command<br />
(incl. outgoing voice or data<br />
call, outgoing SMS)<br />
Incoming SMS depending on<br />
mode selected by AT+CNMI:<br />
AT+CNMI=0,0 (= default, no<br />
indication of received SMS)<br />
AT+CNMI=1,1 (= displays<br />
URC upon receipt of SMS)<br />
GPRS data transfer<br />
Not possible<br />
(UART disabled)<br />
No effect<br />
Quit<br />
Not possible<br />
(UART disabled)<br />
Temporary<br />
No effect<br />
Quit<br />
Temporary<br />
Temporary<br />
No effect<br />
Temporary<br />
Temporary<br />
RTC alarm Quit 2) Quit Temporary<br />
AT+CFUN=1<br />
Not possible<br />
(UART disabled)<br />
Quit<br />
Quit<br />
1)<br />
During the CYCLIC SLEEP modes 5, 6, 7, and 8, GSM_RTS0 and GSM_RTS1 are<br />
conventionally used for flow control: The assertion of GSM_RTS0 or GSM_RTS1<br />
signals that the application is ready to receive data - without waking up the module. If<br />
the module is in CFUN=0 mode the assertion of GSM_RTS0 and GSM_RTS1 serves<br />
as a wake-up event, giving the application the possibility to intentionally terminate<br />
power saving. If the module is in CFUN=9 mode, the assertion of GSM_RTS0 or<br />
XT55/56_hd_v02.06a Page 51 of 125 17.12.2004
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