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5.3 CC121 Memory Map

5.3.3 Interrupt Vector Register

The interrupt output of the COM9026 is connected to the selected interrupt line on the VMEbus. JB3 is used to select the interrupt level on the VMEbus. The interrupt vector provided during an interrupt acknowledge cycle is software programmable by writing to the interrupt vector register.

Figure 5-2 Interrupt Vector Register

CC121 - ARCNET Interface for VMEbus - 30 SEP 1996
Copyright © 1996 Compcontrol, Inc.

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