VLIW processor with power saving

Details VLIW processor with power saving VLIW processor with power saving

2003-09-17

2008-11-25

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

C713S320000, C713S324000

Reexamination Certificate

active

07457970

ABSTRACT:
A data processing apparatus has an instruction memory system arranged to output an instruction word, capable of containing a plurality of instructions, respective instruction words being output in response to respective instruction addresses. An instruction execution unit contains a plurality of functional units, each capable of executing a respective instruction from the instruction word in parallel with execution of other instructions from the instruction word by other ones of the functional units. A power saving circuit is provided to switch a selectable subset of the functional units and/or parts of the instruction memory to a power saving state, while other functional units and parts of the instruction memory continue processing instructions in a normal power consuming state. The power saving circuit selects the functional units and/or parts of the instruction memory dependent on program execution.

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patent: 2003/0037221 (2003-02-01), Gschwind et al.

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