Can UART wake up CPU in Power-down mode?
Posted: 27 Mar 2017, 13:54
All the NuMicro ? series chips support the use of CTSn pin to wake up CPU. The user can switch the CTSn pin status to wake up CPU. For some NuMicro ? series chips, such as the Nano series, the UART data wake-up function is also supported. When receiving incoming data, UART can wake up CPU from Power-down mode, and the received data is stored in the FIFO.