Question: 3. Given an interrupt device (Pull-up device) connected to Port P bit 0, please write an ISR which will input from Port A to M[S1000]

3. Given an interrupt device (Pull-up device) connected to Port P bit 0, please write an ISR which will input from Port A to M[S1000] in response to the request on Port P bit 0 which (Interrupt Vector) do we use? what is the content of the IV? Port P Pull Device Enable Register (PERP): 1, Pull device enabled; 0, Pull device disabled Port P Polarity Select Register (PPSP) 1 rising edge selected; 0 falling edge selected Port P Interrupt Enable Register (PIEP): 1 Interrupt is enabled, 0 Interrupt is disabled Port P Interrupt Flag Register (PIFP) PORTA: EQU 0 DDRA: EQU 2 PORTP: EQU $0258 DDRP: EQU $025A PERP EQU S025C PPSP: EQU S025D PIEP:EQU S025E PIFP: EQU S025F Setup: ORG SA324 PortP PA_In_ISR: ISR Interrupt Handling (Service) Routine 3. Given an interrupt device (Pull-up device) connected to Port P bit 0, please write an ISR which will input from Port A to M[S1000] in response to the request on Port P bit 0 which (Interrupt Vector) do we use? what is the content of the IV? Port P Pull Device Enable Register (PERP): 1, Pull device enabled; 0, Pull device disabled Port P Polarity Select Register (PPSP) 1 rising edge selected; 0 falling edge selected Port P Interrupt Enable Register (PIEP): 1 Interrupt is enabled, 0 Interrupt is disabled Port P Interrupt Flag Register (PIFP) PORTA: EQU 0 DDRA: EQU 2 PORTP: EQU $0258 DDRP: EQU $025A PERP EQU S025C PPSP: EQU S025D PIEP:EQU S025E PIFP: EQU S025F Setup: ORG SA324 PortP PA_In_ISR: ISR Interrupt Handling (Service) Routine

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