Patent ID: 9286250
Filing Date: 2016-03-15
CPC Classification: G06F,H03M

Claim Text:
1. A semiconductor device comprising: a central processing unit; an interrupt control circuit; and a conversion portion that has a plurality of input channels including one or more first channels and one or more second channels, a channel selection portion for selecting one of the input channels, and analog-to-digital (A/D) convertor for converting a signal input from a selected input channel and outputting a selection signal to the channel selection portion and a completion signal, wherein the conversion portion receives a scan conversion instruction from the central processing unit, sequentially selects a respective one of the input channels in accordance with a selection signal from the channel selection portion based on a specified selection order, and successively performs A/D conversion, and wherein the interrupt control circuit outputs an interrupt signal to the central processing unit in response to A/D conversion completion notification received from the conversion portion when the conversion portion receives the scan conversion instruction and finishes A/D converting input signal input to all input channels.