SEMICONDUCTOR DEVICE, CONTROL DEVICE, AND CONTROL METHOD

To provide a semiconductor device capable of preventing the shift of multiple control signals generated based on multiple counters due to the deviation of the count-start timings among the multiple counters.SOLUTION: A semiconductor device includes: a first unit having a first counter that is config...

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Bibliographic Details
Main Authors TSUDA TETSUJI, FUNABASHI YUTAKA, FUKUYAMA MITSUKI
Format Patent
LanguageEnglish
Japanese
Published 21.05.2020
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Summary:To provide a semiconductor device capable of preventing the shift of multiple control signals generated based on multiple counters due to the deviation of the count-start timings among the multiple counters.SOLUTION: A semiconductor device includes: a first unit having a first counter that is configured to periodically count the number of clocks of the clock signal up to a first predetermined value, to generate a control signal using a count value of the first counter, a second predetermined value, and a third predetermined value and output the same, and to output a first trigger signal when the count value of the first counter reaches a fourth predetermined value; and a second unit having a second counter that periodically counts the number of clocks of the clock signal up to a first predetermined value and to generate and output the control signal using a count value of the second counter, a second predetermined value, and a third predetermined value. The second unit is configured to calculate a difference between the count value of the first counter and the count value of the second counter when the first trigger signal is input to adjust the counting cycle of the second counter based on the difference.SELECTED DRAWING: Figure 12 【課題】複数のカウンタの計数の開始タイミングのずれにより複数のカウンタに基づいて生成される複数の制御信号がずれる。【解決手段】半導体装置は、クロック信号のクロック数を第一所定値まで周期的に計数する第一カウンタを有し、第一カウンタの計数値と第二所定値と第三所定値とを用いて制御信号を生成および出力し、第一カウンタの計数値が第四所定値になると第一トリガ信号を出力するよう構成される第一装置と、クロック信号のクロック数を第一所定値まで周期的に計数する第二カウンタを有し、第二カウンタの計数値と第二所定値と第三所定値を用いて制御信号を生成および出力する第二装置と、を備える。第二装置は、第一トリガ信号を入力した時の第二カウンタの計数値を用いて、第一カウンタの計数値との差分を求め、差分に基づいて第二カウンタの計数周期を調整するよう構成される。【選択図】図12
Bibliography:Application Number: JP20180211087