GPIO Generate SCI

GPIO_USE_SEL—GPIO Use Select Register

0 = Signal used as native function.

1 = Signal used as a GPIO.

GP_IO_SEL—GPIO Input/Output Select Register

0 = Output. The corresponding GPIO signal is an output.

1 = Input. The corresponding GPIO signal is an input.

GPI_INV—GPIO Signal Invert Register

0 = The corresponding GPI_STS bit is set when the Chipset detects the state of the input pin to be high.

1 = The corresponding GPI_STS bit is set when the Chipset detects the state of the input pin to be low.

GPIO_ROUT—GPIO Routing Control Register (PM—D31:F0)

GPIOxx Route:

00 = No effect.

01 = SMI# (if corresponding ALT_GPI_SMI_EN bit is also set)

10 = SCI (if corresponding GPE0_EN bit is also set)

11 = Reserved

Scope(\_GPE){

Method (_Lxx,0){

Store(0x15, DBG8) // DBG8 name translates to IO port 80h

Sleep (1000) // Wait for 1sec for display DBG8

}