Fujitsu Corporation

Pfu Limited

Kouji Kanamaru

Taizo Sato

In an evaluation apparatus for measuring the fluctuation of a voltage and a current on a power supply line and evaluating the result of the measurement, the apparatus includes: a dummy load connected to the power supply line instead of an actual function unit to measure the fluctuation of the voltage and the current on the power supply line; and a switch connected to the dummy load for turning ON/OFF the dummy load instead of performing an inserting/removing operation thereof. Further, the above switch can replace to a switching control circuit connected to the dummy load for continuously switching turning ON/OFF state of the dummy load instead of repeatedly performing an inserting/removing operation of the dummy load.

Evaluation apparatus for power supply system

In a data processing unit which includes first and second buses and an arithmetic and logic unit, there is provided a register file connected between the first and second buses, for storing data on the second bus. The register file includes a plurality of a register portion having a capacity equal to or exceeding a minimum data length of data processed in the ALU, and a bypass circuit connected between the first and second buses for bypassing data on the second bus to output the data to the first bus per unit of the minimum data length, the bypass circuit including a plurality of bypass lines each having the minimum data length. A control circuit controls data read from and writing to the register file per a unit of the minimum data length and controls the bypass circuit so as to bypass the data on the second bus to the first bus per a unit of the minimum data length.

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Zama, Japan

Kouji Kanamaru