Program loading mechanism through a single input data path

Details Program loading mechanism through a single input data path Program loading mechanism through a single input data path

2006-01-03

2006-01-03

Pan, Daniel H. (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Mode switch or change

C712S225000, C712S227000

Reexamination Certificate

active

06983360

ABSTRACT:
Pieces of input data, which can be either setup data or program data with an associated identifier, are provided to a processing engine through a single input data path. After a system initially resets, the processing engine runs in setup mode. When an identifier for setup data is detected, input data is passed unchanged through an execution pipeline to control logic, which executes a setup program. The setup program loads a program counter, a memory, a register file counter, and a register file. When an identifier for program data is detected, the processing engine automatically switches to run mode and input data is processed in the execution pipeline. The processing engine automatically switches between run mode and setup mode depending on the identifier. Using a single input data path decreases hardware complexity and allows input data to be processed without external control logic.

REFERENCES:
patent: 5652887 (1997-07-01), Dewey et al.
patent: 5689726 (1997-11-01), Lin
patent: 5968169 (1999-10-01), Pickett
patent: 6110229 (2000-08-01), Yamaguchi
patent: 6324691 (2001-11-01), Gazdik

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