SN8P2501D
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD Page 52 Version 1.5
5.7.3 P1W WAKEUP CONTROL REGISTER
Under power down mode (sleep mode) and green mode, the I/O ports with wakeup function are able to wake the
system up to normal mode. The wake-up trigger edge is level changing. When wake-up pin occurs rising edge or falling
edge, the system is waked up by the trigger edge. The Port 0 and Port 1 have wakeup function. Port 0 wake-up
function always enables, but the Port 1 is controlled by the P1W register.
Bit[3:0] P10W~P13W: Port 1 wakeup function control bits.
0 = Disable P1n wakeup function.
1 = Enable P1n wakeup function.