Consider uC is interfaced with inter-device for UART communication probably PMIC. If uC is not powered "On" and PMIC is on and Its sending Input for uC. does this effect uC UART ports...?
Statement: 4× UARTs (3× with hardware flow control)
what does it mean "hardware flow control"?
Hi,
If uC is not powered "On" and PMIC is on and Its sending Input for uC. does this effect uC UART ports...?
Please refer to the datasheet electrical characteristics for I/Os. You should avoid back-powering an unpowered MCU through I/O as much as possible or at least make sure limit the current going through the I/Os when the device is unpowered.
Statement: 4× UARTs (3× with hardware flow control)
Please refer to the TRM for flow control details.
