Accession Number : ADA138118

Title :   Continued Development of a Universal Network Interface Device Using the Intel 8086 and 8089 16-Bit Microprocessors.

Descriptive Note : Master's thesis,


Personal Author(s) : Matheson,W F

PDF Url : ADA138118

Report Date : 15 Dec 1983

Pagination or Media Count : 156

Abstract : This research describes the development of a Universal Network Interface Device (UNID II) which is intended to function as a node in a computer communications network. The UNID II is a 16-bit, 8086 microprocessor based version of the present 8-bit Z80A UNID being developed at the Air Force Institute of Technology (AFIT). The UNID II's architecture was based on a conceptual block diagram design presented in a previous AFIT thesis. It is comprised of two modules: a local module, which interfaces the UNID II to host computers and/or peripheral devices; and a network module, which interfaces the UNID II to a computer communications network. In this report the detailed design of the network module, and the construction and testing of the local module is documented. The network module was designed using a pair of 8089 Input/Output Processors in a remote configuration. The local module consists of an Intel SBC 86/12A single board computer and a wire wrap card with four low speed I/O ports. Testing was done using an Intel ICE-86A/88A In-Circuit Emulator. The tests conducted, verified the proper operation of the local module, including some software to process X.25 formatted frames. The UNID II was not tested in a computer communications network environment. (Author)

Descriptors :   *Microprocessors, *Computer communications, *Communications networks, Interfaces, Data processing equipment, Input output processing, Systems engineering, Systems analysis, Circuit interconnections, Computer programs, Data links, Standards, Layers, Theses

Subject Categories : Computer Programming and Software
      Computer Hardware
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE