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US 10,761,560 B2Granted
Method and apparatus for transaction based propagated clock-gating for low power design
AssigneeHuawei Technologies Co., Ltd.
InventorsChang Hoon Lee, John Edward Vincent, Louis-Philippe Hamelin, Paul Alepin
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Abstract
The embodiments employ a transaction based design methodology to supply clocking when clock pulses are requested. The transactional module receives a clock when it requests a clock pulse and one stage of a logic pipeline is clocked at a time. This methodology reduces dynamic power dissipation by the transactional module from the dynamic power dissipated by traditional synchronous logic designs.
Claims12
A circuit comprising:
- a system clock;
- a Clock Control Block (CCB);
- a Logic Module (LM);
- an input configured to receive an instruction;
- a second LM;
- the LM configured to send a clock request signal to the CCB in response to the received instruction;
- and
- the CCB including a plurality of CCB stages, each of the plurality of CCB stages outputting a single clock pulse in response to the receipt of the clock request signal and the system clock;
- and
- the second LM sending a second clock request to the CCB, and wherein at least one CCB stage of the plurality of CCB stages outputs a single clock pulse in response to the receipt of the system clock and both the clock request and the second clock request.
7 more elements
Dependencies are inferred from the claim text.