Specifications

TC35i AT Command Set

Confidential / Released

TC35i_ATC_V01.05 Page 90 of 278 04.08.2003

4.11.1 Wake up the ME from SLEEP mode

A wake-up event is any event that switches off the SLEEP mode and causes the ME to return to full

functionality. In short, it takes the ME back to AT+CFUN=1.

Definitions of the state transitions described in Table 12:

Yes = ME exits SLEEP mode.

No = ME does not exit SLEEP mode.

Table 12: Wake-up events in NON-CYCLIC and CYCLIC SLEEP modes

Event From SLEEP mode

AT+CFUN=0 to

AT+CFUN=1

From SLEEP mode

AT+CFUN=5 or 6 to

AT+CFUN=1

From SLEEP mode

AT+CFUN=7 or 8 to

AT+CFUN=1

Ignition line No No No

Activation of /RTS0 Yes No No

Unsolicited Result Code

(URC)

Yes Yes No

Incoming voice or data call Yes Yes No

Any AT command

(incl. outgoing voice or data

call, outgoing SMS)

Not possible

(UART disabled)

No No

Incoming SMS depending on

mode selected by AT+CNMI:

AT+CNMI=0,0 (= default, no

indication of received SMS)

AT+CNMI=1,1 (= displays

URC upon receipt of SMS)

Yes

RTC alarm Yes Yes No

AT+CFUN=1 Not possible

(UART disabled)

Yes Yes

Recommendation:

· In NON-CYCLIC SLEEP mode, you can set an RTC alarm to wake up the ME and return to full

functionality. This is a useful approach because, in this mode, the AT interface is not accessible.