Patent
1995-05-23
1998-05-05
Lee, Thoams C.
395890, 395891, 395892, G06F 1100, H03M 138
Patent
active
057489840
ABSTRACT:
An AD converting apparatus which is provided with a data update flag 3b for storing a first value ("1") when an analog signal is newly converted by an AD converter 1 to digital data and is stored into a data register 3a, and for storing a second value ("0") when the contents of the data register 3a are read out externally in a state under which the first value has been stored, and which eliminates a wasteful operation such that the data having already been used is used again to perform an arithmetic operation, by building in a hardware capable of indicating whether the data after AD conversion has already been used once or not, and thus improving processing speed as a whole; and a data processor in which the AD converting apparatus is built in.
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Lee Thoams C.
Mitsubishi Denki & Kabushiki Kaisha
Mitsubishi Electric Semiconductor Software Co. Ltd.
Perveen Rehana
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