Reset MCU with a 1-0 button

I am working on a silabs C8051 MCU. It has a sleep mode which should be woken up by a reset. The mcu should start working (wake up from sleep) when the button in connected to Ground (Otherwise it is on the air). What is the easiest way to give a reset signal to the reset pin (or any other way) to restart the MCU?

• ...a pcb trace? – Hearth Feb 7 at 4:40
• define easiest .... also, what does this mean? Otherwise it is on the air – jsotola Feb 7 at 5:32