UM-WI-038
DA16x00 Getting Started with AT-Command for
AWS-IoT
User Manual
Revision 1.1
13-Jan-2022
CFR0012
9 of 39
© 2022 Renesas Electronics
PIN Mux
GPIO
Signal Name
GPIOA_7
RX
6.1.2
DA16x00 Wake Up Connection
The DA16x00 has a maximum power saving mode called 'DPM'. When the DA16x00 is configured in
DPM mode, the External Host must wake up the DA16x00 before it can send or receive data. The
External Host can trigger a wakeup event by connecting a GPIO pin to the RTC_WAKE_UP2 pin of
DA16x00 EVK. A wakeup event is triggered when the GPIO Pin transitions from Low to High and
then back to Low.
Figure 6: DA16x00 Wake Up HW Connection
6.1.3
External Host Wake Up Connection
In a low power scenario, the External Host may be in sleep mode to save power. In this case, the
DA16x00 requires a connection to the External Host to trigger a wake up from sleep mode. If the
External Host does not use the power save mode, then this connection is not required.
6.1.3.1
Default External Host Wake Up Pin Connection
By default the DA162x0 EVK uses pin GPIOA_11 to wake up an External Host (
). The
AT+CMDs to configure the External Host wake up pin are as follows:
AT+AWS SET APP_MCU_WKAEUP_PORT GPIO_UNIT_A
// GPIO_A port
AT+AWS SET APP_MCU_WKAEUP_PIN GPIO_PIN11
// GPIO_11
Figure 7: Default Wake Up Pin HW Connection
