Dynamically programmable processing element

Details Dynamically programmable processing element Dynamically programmable processing element

1981-08-24

1984-03-27

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 304

Patent

active

044398395

ABSTRACT:
A dynamically programmable processing element (DPPE) is disclosed which element has the utility in a digital processing system which requires complicated arithmetic procedures to be implemented. The DPPE device is a special purpose computer which essentially has a program bus for transmitting and receiving program data from an external source. A data bus is also provided which bus can transmit or receive digital data. Coupled between the buses are input and output registers or buffers which are capable of storing transmitted or received data propagating on either of said buses. A program memory has an input coupled to said program bus and means coupling the output of the program memory to the program bus. A data memory has an addressable input means coupled to the program bus and an output coupled to the data bus. Based on the orientation of the buses and the memories, the program memory can receive program information or data from an external source and data from the data memory can be transferred to the external source. In this respect the DPPE can be reprogrammed in real time by the external source. The DPPE can also execute program instructions by fetching them from the external source as well as executing its own program instructions as stored in its program memory. The structure and format of the DPPE enables it to interface with an external source such as a microprocessor to assist and perform program instructions, as well as to perform arithmetic operations on data from the microprocessor and to communicate with the microprocessor after completion of the various routines.

REFERENCES:
patent: 4041472 (1977-08-01), Shah et al.
patent: 4159882 (1979-07-01), Sanders, Jr. et al.

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