Specifications
CINTERION
®
BGS12 Hardware Interface Description
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BGS12 HID_V00.915
Confidential / Released
2019
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01
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07
3.4.7 Wake up BGS12 from SLEEP Mode
A wake-up event is any event that causes the module to draw current. Depending on the
selected mode the wake-up event either switches SLEEP mode off and takes BGS12 back to
AT+CFUN=1, or activates BGS12 temporarily without leaving the current SLEEP mode.
Definitions of the state transitions described in Table 9:
Quit = BGS12 exits SLEEP mode and returns to AT+CFUN=1.
Temporary = BGS12 becomes active temporarily for the duration of the event and the mode
specific follow-up time after the last character was sent or received on the serial
interface.
No effect = Event is not relevant in the selected SLEEP mode. BGS12 does not wake up.
Table 9: Wake-up events in NON-CYCLIC and CYCLIC SLEEP modes
1. See Section Section 3.4.7.1 on wake-up via RTS.
3.4.7.1 Wake-up via RTS0 and RTS2 (if AT+CFUN=0 or AT+CFUN=9)
During the CYCLIC SLEEP mode 7, the RTS0 and RTS2 lines are conventionally used for flow
control: The assertion of RTS0 or RTS2 indicates that the application is ready to receive data
without waking up the module.
If the module is in CFUN=0 mode the assertion of RTS0 and RTS2 serves as a wake-up event,
giving the application the possibility to intentionally terminate power saving. If the module is in
CFUN=9 mode, the assertion of RTS0 or RTS2 can be used to temporarily wake up BGS12
for the time specified with the AT^SCFG command (default = 2s). In both cases, if RTS0 or
RTS2 is asserted while AT+CFUN=0 or AT+CFUN=9 is set, there may be a short delay until
Event
Selected mode
AT+CFUN=0
Selected mode
AT+CFUN=7 or 9
Ignition line No effect No effect
RTS0 or RTS1
1
)
(falling edge)
Quit + flow control
Mode 7: No effect, RTS
is only used for flow
control Mode 9: Tem-
porary + flow control
Unsolicited Result Code (URC) Quit Temporary
Incoming voice or data call Quit Temporary
Any AT command
(incl. outgoing voice or data call,
outgoing
SMS)
Not possible
(UART disabled)
Temporary
Incoming SMS depending on mode sel-
ected by AT+CNMI:
AT+CNMI=0,0 (= default, no indication of
received SMS)
AT+CNMI=1,1 (= displays URC upon re-
ceipt of SMS)
No effect
Quit
No effect
Temporary
GPRS data transfer
Not possible
(UART disabled)
Temporary
AT+CFUN=1
Not possible
(UART disabled)
Quit