Half-message based multiplex communication interface circuit whi

Details Half-message based multiplex communication interface circuit whi Half-message based multiplex communication interface circuit whi

1996-04-08

1999-03-09

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370419, H04L 1228, H04L 1256

Patent

active

058810633

ABSTRACT:
A method and circuit for receiving frame messages connected to one or more nodes, each controlled by a microcontroller, along a common transmission line of a multiplex communication system. The method includes the steps of: (a) receiving the type and target bytes, and responsive thereto generating a first interrupt signal to the microcontroller at the node; (b) commanding the microcontroller, responsive to receiving the first interrupt signal, for qualifying the frame message by retrieving and matching one or more of the type and target bytes with corresponding bytes stored in programmable memory within the microcontroller, and responsive thereto generating a qualified signal; and (c) receiving data bytes from the frame message only responsive to receiving the qualified signal from the microcontroller.

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