ADLINK Technology PCI-7200 Specifiche Scaricare il pdf (Pagina 30)

20 •• Register Structure & Format

♦♦ Interrupt Control:

In PCI-7200, the interrupt can be triggered by many signal

sources such as O_ACK, I_REQ, timer 0, timer 1, and timer 2.

The interrupt source is controlled by the following bits:

IO_ACK: Interrupt is triggered by O_ACK signal.

1: O_ACK interrupt is enabled

0: O_ACK interrupt is disabled

II_REQ: Interrupt is triggered by I_REQ signal.

1: I_REQ interrupt is enabled

0: I_REQ interrupt is disabled

T0_EN: Interrupt is triggered by timer 0 output.

1: Timer 0 interrupt is enabled

0: Timer 0 interrupt is disabled

T1_EN: Interrupt is triggered by timer 1 output.

1: Timer 1 interrupt is enabled

0: Timer 1 interrupt is disabled

T2_EN: Interrupt is triggered by timer 2 output.

1: Timer 2 interrupt is enabled

0: Timer 2 interrupt is disabled

♦♦ Interrupt Status:

The following bits are used to check interrupt status:

SO_ACK: Status of O_ACK interrupt

1: O_ACK Interrupt occurred

0: No O_ACK interrupt

SI_REQ: Status of I_REQ interrupt

1: I_REQ Interrupt occurred

0: No I_REQ Interrupt

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ADLINK Technology PCI-7200 Specifiche Pagina 30