Browse Prior Art Database

Multi-Microprocessor Control of Multi-Line Multi-Protocol Serial Communications

IP.com Disclosure Number: IPCOM000043828D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Johnson, WJ: AUTHOR [+4]

Abstract

A technique is described whereby high-speed multi-protocol, multi-microprocessors are used to control the distribution and handling of serial communication lines. For every communication line, there is provided a microprocessor. Each microprocessor has its own random-access memory (RAM) and its own read-only memory (ROM). The ROM contains the diagnostics and microcode download program. Each line can be programmed to handle its own individual protocol through the USART (Universal Synchronous/Asynchronous Receiver/Transmitter), independent of the other lines. Therefore, the combination of the microprocessor, RAM and ROM provides the control of several communication protocols at the same time.

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Multi-Microprocessor Control of Multi-Line Multi-Protocol Serial Communications

A technique is described whereby high-speed multi-protocol, multi- microprocessors are used to control the distribution and handling of serial communication lines. For every communication line, there is provided a microprocessor. Each microprocessor has its own random-access memory (RAM) and its own read-only memory (ROM). The ROM contains the diagnostics and microcode download program. Each line can be programmed to handle its own individual protocol through the USART (Universal Synchronous/Asynchronous Receiver/Transmitter), independent of the other lines. Therefore, the combination of the microprocessor, RAM and ROM provides the control of several communication protocols at the same time.

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