Technical data

Programming Details

MVME4100 Single Board Computer Programmer’s Reference (6806800H19B)

4.3 MPC8548E Interrupt Controller

The MVME4100 uses the MPC8548E integrated programmable interrupt controller (PIC) to

manage locally generated interrupts. Currently defined external interrupting devices and

interrupt assignments, along with corresponding edge/levels and polarities, are shown in the

following table.

1. External timers are implemented in a PLD.

2. External UARTs are implemented using a QUART.

Refer to the MPC8548E Reference Manual listed in Appendix B, Related Documentation, for

additional details regarding the operation of the MPC8548E PIC.

Table 4-2 MPC8548E Interrupt Controller

Interrupt # Edge/Level Polarity Interrupt Source Notes

0 Level Low Tsi148 INTA

1 Level Low Tsi148 INTB

2 Level Low Tsi148 INTC

3 Level Low Tsi148 INTD

4LevelLowPMC1, PMC2, USB

5LevelLowPMC1, PMC2, USB

6LevelLowPMC1, PMC2, USB

7LevelLowPMC1, PMC2

8LevelLowXMCspan

9LevelLowRTC, TEMP, Abort

10 Level Low PHYs

11 Level Low UARTs, External Timer 1,2