Micro Processing Unit (Mpu) - Avaya Nortel Communication Server 1000 Reference

NT6D80 MSDL card
Figure 89: MSDL block diagram

Micro Processing Unit (MPU)

The MPU, which is based on a Motorola 68020 processor, coordinates and controls data
transfer and port addressing, communicating via the CPU bus with the system. Prioritized
interrupts tell the MPU which tasks to perform.
320 Circuit Card Reference
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July 2011