Emulation system and method for development of a low power data

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364483, G01R 1900

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active

053831373

ABSTRACT:
An emulation system (10) provides a plurality of circuits (20,28) which each emulate operation of a predetermined component of a target microprocessor (24). Each of the plurality of circuits (20,28) imitates a corresponding component of the target microprocessor (24). A power supply (12) provides power to both the target microprocessor and the plurality of circuits. A first voltage value is provided to a plurality of bus drivers (22, 26, 30). A second voltage value is provided to an internal circuit of each of target microprocessor (24) and the plurality of circuits (20, 28). A current measured between the power supply and each of the circuits accurately reflects a current drawn by the circuits. By designing the target microprocessor and the plurality of circuits such that the power supplied to each is separated from the power supplied to the bus drivers of each of the devices, the operating current of the internal circuitry is accurately measured in real time.

REFERENCES:
patent: 4815024 (1989-03-01), Lewis
patent: 5077763 (1991-12-01), Gagnoud et al.
"CDS8 System M68HC05 Family Software Operations Manual for MS-DOS" published by Motorola, Inc. in Feb. 1990, pp. 1-1 to 1-4, 5-1, 7-1 to 7-17.

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