System for obtaining status data unrelated to user data path fro

Details System for obtaining status data unrelated to user data path fro System for obtaining status data unrelated to user data path fro

1996-03-12

1998-07-21

Shin, Christopher B.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

39520043, 39520068, 395885, 395500, 345222, 375220, G06F 1300, G06F 1320

Patent

active

057846332

ABSTRACT:
A system and method for providing for simultaneous transmission of user data (the I/O data between a source DTE and a destination DTE) and control and/or status data (the data that the DTE conveys for DCE control and the data the DTE retrieves from the DCE for status purposes, respectively) comprises multiple data paths for the user, control and status data. The user data path utilizes an I/O space while the status and the control data utilize a memory space. Further, an interrupt generator is implemented to indicate to the DCE that a new control command has been received by the DCE. The implementation of this system and method foregoes the requirement of disrupting user data flow or modifying user data flow if there is a need for retrieving DCE status data or for sending to the DCE new control information.

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