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Application NoteNxp

AN2039: Bus Arbitration State Machine for MC68040 and MC68360

Application note describing a bus arbitration state machine and block diagram for interfacing the NXP MC68040 with multiple MC68360 QUICC processors.

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Overview

This document details the implementation of a bus arbitration logic system for designs incorporating the NXP MC68040 and MC68360 (QUICC) processors. It describes a state machine where the MC68040 is assigned the highest priority, followed by the MC68360 Slave 1 and Slave 2. The design includes a detailed block diagram illustrating the signal connections for Bus Request (BR), Bus Grant (BG), and Bus Grant Acknowledge (BGACK) between the external arbiter, the master QUICC, and the additional slave devices.

Use Cases

  • Implementing bus arbitration in multi-processor systems
  • Designing interface logic between MC68040 and MC68360 processors
  • Developing state machines for shared bus resource management

Topics

NXP
MC68360
MC68040
Bus Arbitration
QUICC
Arbiter
State Machine
AN2039
BGACK
Bus Grant

Referenced Parts

MC68040

NXP

MC68040

MC68360

NXP

MC68360-M MC68360-S1 MC68360-S2