rtVAX 300 Hardware User's Guide

This document is a hardware user's guide for the rtVAX 300 processor. It provides technical and physical specifications necessary for configuring the processor into host and target configurations. Key topics covered include:

• Technical Specifications: Functional description, minimum hardware configuration (system RAM and console requirements), bus connections, and signal descriptions.
• Hardware Architecture: Details on the CVAX central processor, floating-point accelerator (CFPA), cache memory, hardware initialization, and console interface registers.
• Firmware: Description of system firmware, ROM formats, console program operations, startup messages, and diagnostic test lists.
• Memory System Interface: Information on memory speed, performance, DRAM design, and programmable array logic (PALs).
• Console and Boot ROM Interface: Details on interfacing a processor status LED register and external boot ROM.
• Network Interconnect Interface: DECnet communications, Ethernet interface, thickwire/ThinWire support, and hardware implementation examples.
• I/O Device Interfacing: Device mapping, interrupt structures, DMA engine implementation, and interfacing with Digital Signal Processors (DSP).
• Physical, Electrical, and Environmental Characteristics: Comprehensive data on operating conditions, power, and environmental tolerances.
• Appendices: Acronym definitions, address assignments, and sample firmware/boot code.