8755 Emulator Design
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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The purpose of this design project was to design and build a device which could replace the INTEL 8755 microchip in experimental circuit designs. The 8755 emulator provides the standard inputoutput ports and 2048 bytes of memory. It also provides the ability to load this memory from the z-100, to single-step a target circuit, break on a specified address, and control the IO ports from the Z-100. The design had 5 basic objectives 1 Allow the user to download 8755 emulation memory 2 Allow control of the target program from the z-100 microcomputer 3 Provide a single step capability 4 Provide breaking at a specified address. 5 Allow the user to set or change the emulated 8755 input output ports. This thesis describes the standard memory and inputoutput capabilities of the 8755. It describes in detail the emulator enhancement features to the standard 8755. The hardware circuits used to implement the emulator are discussed at the block diagram, component, and signal levels. It concludes with a detail description of the emulator software used to control the hardware. Keywords Computer logic Microcomputers Microchips Computer programming Theses edc.
- Electrical and Electronic Equipment
- Computer Programming and Software
- Computer Hardware