摘要:
A power consumption analyzing apparatus has a clock gating cell detector configured to detect a clock gating cell which is not present in RTL data but present in a gate-level netlist based on the RTL data of a target circuit and the netlist corresponding to the RTL data, a test bench description generation unit configured to add a description concerning the clock gating cell detected by the clock gating cell detector to the RTL data, a monitor signal generation unit configured to specify a monitor signal used for power consumption analysis from the RTL data obtained by adding the description concerning the clock gating cell, an RTL simulation unit configured to execute operational simulation of the target circuit by using the RTL data obtained by adding the description concerning the clock gating cell, a monitor unit configured to detect a logic of the monitor signal during the execution of the operational simulation, and a power consumption analysis unit configured to analyze power consumption due to a toggle at a clock terminal of the clock synchronizing cell included in the target circuit.
摘要:
A combination circuit is switched between an active state where power is supplied thereto in response to a control signal and an inactive state where power thereto is interrupted. A flip-flop circuit connected to an input terminal of the combination circuit stores an output signal of the combination circuit in response to a clock signal. The combination circuit is set to an operative state by the control signal immediately before the flip-flop circuit operates in response to the clock signal.
摘要:
According to an embodiment, a semiconductor integrated circuit including first and second lower-layer power supply wires extending in a first direction and first and second upper-layer power supply wires extending in a second direction is provided. First and second connection wires between the upper-layer power supply wires and the lower-layer power supply wires are arranged in a same line along the second direction. First and second position converting wires extending from the connection wires are arranged between the first and second connection wires. First and second upper-side vias provided on the position converting wires are arranged in a same line along the first direction.
摘要:
A power consumption analyzing apparatus has a clock gating cell detector configured to detect a clock gating cell which is not present in RTL data but present in a gate-level netlist, a test bench description generation unit configured to add a description concerning the clock gating cell, a monitor signal generation unit configured to specify a monitor signal used for power consumption analysis from the RTL data, an RTL simulation unit configured to execute operational simulation of the target circuit, a monitor unit configured to detect a logic of the monitor signal during the execution of the operational simulation, and a power consumption analysis unit configured to analyze power consumption.
摘要:
An automatic circuit design apparatus includes a setting module configured to set an upper limit electric potential of a virtual ground line in a circuit to be designed, by use of a cell library for low-threshold cells, a cell library for high-threshold cells, and information of the circuit to be designed. A layout generator is configured to generate a layout based on the information, the cell library for low-threshold cells, and the cell library for high-threshold cells.
摘要:
A combination circuit is switched between an active state where power is supplied thereto in response to a control signal and an inactive state where power thereto is interrupted. A flip-flop circuit connected to an input terminal of the combination circuit stores an output signal of the combination circuit in response to a clock signal. The combination circuit is set to an operative state by the control signal immediately before the flip-flop circuit operates in response to the clock signal.
摘要:
A combination circuit is switched between an active state where power is supplied thereto in response to a control signal and an inactive state where power thereto is interrupted. A flip-flop circuit connected to an input terminal of the combination circuit stores an output signal of the combination circuit in response to a clock signal. The combination circuit is set to an operative state by the control signal immediately before the flip-flop circuit operates in response to the clock signal.
摘要:
A combination circuit is switched between an active state where power is supplied thereto in response to a control signal and an inactive state where power thereto is interrupted. A flip-flop circuit connected to an input terminal of the combination circuit stores an output signal of the combination circuit in response to a clock signal. The combination circuit is set to an operative state by the control signal immediately before the flip-flop circuit operates in response to the clock signal.
摘要:
In general, according to one embodiment, a designing apparatus includes a clock tree generator, a logic modifier, a layout modifier, and an outputting module. The clock tree generator is configured to generate a clock tree. The logic modifier is configured to logically insert a delay element in such a manner that a hold violation is modified without considering a setup timing with respect to circuit data corresponding to the clock tree generated by the clock tree generator. The layout modifier is configured to modify a layout of a semiconductor integrated circuit based on a processing result of the logic modifier. The outputting module is configured to output the layout of the semiconductor integrated circuit. The layout is modified by the layout modifier.
摘要:
An automatic circuit design apparatus includes a setting module configured to set an upper limit electric potential of a virtual ground line in a circuit to be designed, by use of a cell library for low-threshold cells, a cell library for high-threshold cells, and information of the circuit to be designed. A layout generator is configured to generate a layout based on the information, the cell library for low-threshold cells, and the cell library for high-threshold cells.