VersaLogic VL-586-1, Reference Manual

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External Connections
48 – Installation VL-586-1 Reference Manual
J2 – I
NTERRUPT
C
ONNECTOR
A 4-pin header connector, J2, provides external access to two interrupt lines.
Table 22: Front Plane Interrupt Connector Pinout.
J2
Pin
Signal
Name
Function
1 Ground Ground
2 FP0* Front Plane 0 Interrupt
3 Ground Ground
4 FP1* Front Plane 1 Interrupt
FP0* — Front Plane 4 Interrupt. This TTL input signal is used as a general purpose interrupt
request input. If jumper V12[2-3] is inserted, a low level (or high-to-low transition) applied to
the FP0* pin will request an interrupt via IRQ9. In DOS configuration, this will cause an INT
71h resulting in a dispatch through the interrupt vector at 000:01C4h.
FP1* — Front Plane 6 Interrupt.
This TTL input signal is used as a general purpose interrupt
request input. If jumper V16[1-2] is inserted, a low level (or high-to-low transition) applied to
the FP1* pin will request an interrupt via IRQ15. In DOS configuration, this will cause an INT
77h resulting in a dispatch through the interrupt vector at 000:01DCh.