摘要:
For one disclosed embodiment, a converter converts 2N-bit data into an N-bit value indicating a number of bits in the data that have a predetermined logical value. The converter includes N comparators, each determining whether the number of bits in the data having the predetermined logical value exceeds a respective one of a plurality of reference values. The N-bit value is generated based on the outputs of the comparators. For another disclosed embodiment, a first delay element delays a signal based on a number of bits in a data value having a predetermined logical value, and a second delay element delays the signal based on a number of bits in a reference value having the predetermined logical value. A comparator then generates a bit value based on the delayed signals.
摘要:
A single ended current sensed bus with novel static power free receiver circuit is described herein. In one embodiment, a receiver circuit example includes a latch circuit to latch values for a first output and a second output during an evaluation phase in response to an input, a pre-charge circuit coupled to the latch circuit to pre-charge the latch circuit during a pre-charge phase, and a static power dissipation blocking (SPDB) circuit coupled to the pre-charge circuit and the latch circuit to substantially block static power from being dissipated during the pre-charge phase. Other methods and apparatuses are also described.
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:
A low loss on-die interconnect structure includes first and second differential signal lines on one of the metal layers of a microelectronic die. One or more traces may also be provided on another metal layer of the die that are non-parallel (e.g., orthogonal) to the differential signal lines. Because the traces are non-parallel, they provide a relatively high impedance return path for signals on the differential signal lines. Thus, a signal return path through the opposite differential line predominates for the signals on the differential lines. In one application, the low loss interconnect structure is used within an on-die salphasic clock distribution network.
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:
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:
A high performance interconnect that utilizes dynamic driver technology is capable of reduced power operation during periods of low data switching activity. Circuitry is provided that limits the performance of an evaluation operation in the dynamic driver circuitry to clock cycles during which a present input bit of the interconnect differs from a previous input bit. Thus, the evaluation operation and subsequent precharge of the driver output is performed sparingly during periods of low data switching activity. An output circuit is also provided for decoding the data stream flowing through the interconnect at the receiver end thereof. Using the principles of the present invention, it is possible to achieve the performance advantages of dynamic drivers with the switching activity of interconnects that use static CMOS technology.
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.