Confidential
USERS MANUAL
150(158)
Document number
Revision
1/198 17-4/FCP 101 3045 Uen
D
6.13.2.1
Module not powered on
Application
Module
Wake due to external event
Pull the MODULE_PWR_EN_B low
Radio detects MODULE_PWR_EN_B low, initiates
power on sequence
Observes the “Restart” message
Restart issued (and possibly *EUNSOL: RTC
WAKETIME depending upon timing)
Terminate RTC mode
AT+CFUN=1
Radio terminates RTC mode
RTC releases MODULE_PWR_EN_B
6.13.2.2
Module powered on
Application
Module
RTC pulls MODULE_PWR_EN_B pin low at
09:30:00
Radio detects MODULE_PWR_EN_B low, initiates
power on sequence
Radio looks for service and goes idle
Wake due to external event
Pull the MODULE_PWR_EN_B low
Radio already running
Observes the *EUNSOL: RTC WAKETIME message
(trigger to indicate module is executing)
*EUNSOL: RTC WAKETIME repeatedly issued when
in RTC mode
Terminate RTC mode
AT+CFUN=1
Radio terminates RTC mode
RTC releases MODULE_PWR_EN_B
6.13.2.3
Module powered on and currently powering down
Application
Module
RTC pulls MODULE_PWR_EN_B pin low at
09:30:00
Radio detects MODULE_PWR_EN_B low, initiates
power on sequence
Radio looks for service and goes idle
Radio remains powered on for 1 minute
Radio initiates shuts down, pulls the HW_SD pin low
Wake due to external event
Pull the MODULE_PWR_EN_B low
Radio completes shutdown and instructs the RTC to
release MODULE_PWR_EN_B
The radio observes the MODULE_PWR_EN_B is still
low so the radio restarts
Observes the “Restart” message
Restart issued (and possibly *EUNSOL: RTC
WAKETIME depending upon timing)
Terminate RTC mode
AT+CFUN=1
Radio terminates RTC mode
RTC releases MODULE_PWR_EN_B