Rainbow-electronics ATmega64M1 Manual de usuario descargar pdf (Pagina 153)

153

8209A–AVR–08/09

ATmega16M1/32M1/64M1

• Bit 2 – PEVE1: PSC External Event 1 Interrupt Enable

When this bit is set, an external event which can generates a fault on module 1 generates also

an interrupt.

• Bit 1 – PEVE : PSC External Event 0 Interrupt Enable

When this bit is set, an external event which can generates a fault on module 0 generates also

an interrupt.

• Bit 0 – PEOPE: PSC End Of Cycle Interrupt Enable

When this bit is set, an interrupt is generated when PSC reaches the end of the whole cycle.

18.16.11 PIFR – PSC Interrupt Flag Register

• Bit 7:4 – Res: Reserved

These bits are reserved and will always read as zero.

• Bit 3 – PEV2: PSC External Event 2 Interrupt

This bit is set by hardware when an external event which can generates a fault on module 2

occurs.

Must be cleared by software by writing a one to its location.

This bit can be read even if the corresponding interrupt is not enabled (PEVE2 bit = 0).

• Bit 2 – PEV1: PSC External Event 1 Interrupt

This bit is set by hardware when an external event which can generates a fault on module 1

occurs.

Must be cleared by software by writing a one to its location.

This bit can be read even if the corresponding interrupt is not enabled (PEVE1 bit = 0).

• Bit 1 – PEV : PSC External Event 0 Interrupt

This bit is set by hardware when an external event which can generates a fault on module 0

occurs.

Must be cleared by software by writing a one to its location.

This bit can be read even if the corresponding interrupt is not enabled (PEVE0 bit = 0).

• Bit 0 – PEOP: PSC End Of Cycle Interrupt

This bit is set by hardware when an “end of PSC cycle” occurs.

Must be cleared by software by writing a one to its location.

This bit can be read even if the corresponding interrupt is not enabled (PEOPE bit = 0).

Bit 76543210

- - - - PEV2 PEV1 PEV0 PEOP PIFR

Read/Write R R R R R/W R/W R/W R/W

Initial Value 0 0 0 0 0 0 0 0

1 2 ... 148 149 150 151 152 153 154 155 156 157 158 ... 342 343

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Rainbow-electronics ATmega64M1 Manual de usuario Pagina 153