Interrupt Control

This document provides technical documentation for the M7821 Interrupt Control board, used in DEC hardware. It includes:

• Parts Reference: A complete table of components, including integrated circuits (DEC part numbers like 7474, 7400, 7402, etc.), capacitors, and resistors.
• Component Placement: Detailed diagrams illustrating the physical layout and placement of components on the board.
• Technical Notes: Critical configuration instructions, including:
  • Vector bit jumper settings for '0' or '1' logic states.
  • NPR jumper (W9) requirements for specific PDP-11 processor configurations.
  • Standard ground (+5V) and pin mapping assignments.
• Schematic Logic: Logic gate configurations and signal flow diagrams for the interrupt control circuitry.