摘要:
An adder circuit includes a number of selectors and an adder. The selectors feed the adder with multiple input data bits. Each of the selectors includes a combination of a multiplexing network and a sense amplifier to select from a number of input values to generate the multiple input data bits. The combination of the multiplexing network and the sense amplifier acts as the state-holding element at the input of the adder, avoiding the overheads of an explicit latch stage.
摘要:
An embodiment of a full-swing, source-follower leakage tolerant dynamic logic gate comprises an nMOSFET logic to conditionally charge a node during an evaluation phase, and to charge the node to a relatively small voltage during the pre-charge phase so that the nMOSFET logic becomes reverse-biased.
摘要:
A method and apparatus for an address generation circuit. In one embodiment, the method includes computing a carry-in for at least one group of a predetermined number of bits of a propagate and a generate signal formed from a plurality of logical address components. Once the carry-in is computed, a plurality of conditional sums are generated for a logic 0 carry-in and a logic 1 carry-in. Subsequently, a sum is selected from the plurality of conditional sums to form a first portion of an effective address from the logical address components in a first stage and a second portion of the effective address in a second stage. In one embodiment, a fully dynamic high-performance sparse tree adder circuit that generates one in four carries, is used to form an address generation circuit, in accordance with one embodiment. Other embodiments are described and claimed.
摘要:
A processor includes an input-circuit and a Simon block cipher. The Simon block cipher includes a data transformation circuit, a constant generator, and a key expansion circuit. The data transformation circuit includes logic to shift content of data storage registers. The key expansion circuit includes logic to determine a round key based upon an input symmetric key and data input, a previous round key, and a value from the constant generator. The constant generator includes logic to output a successive one of a list of constants each clock cycle, and to store the outputted constants in storage units. The number of storage units is less than the size of the list of constants.
摘要:
An adder circuit is provided that includes a propagate and generate circuit stage to provide propagate and generate signals, a plurality of carry-merge stages to provide carry signals based on the propagate and generate signals and a conditional sum generator to provide conditional sums based on the propagate and generate signals. The conditional sum generator includes ripple carry gates and XOR logic gates. The adder circuit also includes a plurality of multiplexers to receive the carry signals and the conditional sums and to provide an output based on the input signals.
摘要:
A processor includes an input-circuit and a Simon block cipher. The Simon block cipher includes a data transformation circuit, a constant generator, and a key expansion circuit. The data transformation circuit includes logic to shift content of data storage registers. The key expansion circuit includes logic to determine a round key based upon an input symmetric key and data input, a previous round key, and a value from the constant generator. The constant generator includes logic to output a successive one of a list of constants each clock cycle, and to store the outputted constants in storage units. The number of storage units is less than the size of the list of constants.
摘要:
A clock receiver circuit converts low amplitude, differential clock signal components received from a differential clock distribution medium into a full swing digital clock. The clock receiver circuit can be used as part of, for example, an on-die salphasic clock distribution system within a microelectronic device.
摘要:
In some embodiments, the invention includes a domino logic gate circuit having a domino state and a single ended domino compatible dual function generator. The domino state receives a domino stage input signal and provides a single ended intermediate signal as a function of the domino stage input signal, the intermediate signal having a state. The generator receives the intermediate signal and provides an out signal and an out* signal each having a state, wherein the out and out* signals have the same state during a precharge phase and have complementary states during an evaluate phase as a function of the state of the intermediate signal. In other embodiments, the invention includes domino logic gate circuit having a combined domino stage and dual function generator. The domino stage is to receive a domino stage input signal. The dual function generator is a single ended domino compatible dual function generator to provide an out signal and an out* signal that each have a state and during a precharge phase, the out signal and out* signal each have the same state, and during an evaluate phase the out and out* states are complementary states as a function of the domino stage input signal without a logic X circuit and a logic X* circuit.
摘要:
Techniques and mechanisms for performing circuit-switched routing and packet-switched routing for network communication. In an embodiment, a router evaluates control information of a packet received by the router, the evaluation to detect whether the packet includes data for a sideband communication. Based on the evaluation, the router performs a selection from among a plurality of modes of the router, the plurality of modes including a first mode to route the packet for packet-switched communication of sideband data in a network. The plurality of modes also includes a second mode to configure a circuit-switched channel according to the packet. In another embodiment, the router determines a direction for routing a packet in a hierarchical network, wherein the determining of the direction is based on a level of the router in a hierarchy of the hierarchical network.