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发明申请
US20060226868A1 Semiconductor device capable of controlling OCD and ODT circuits and control method used by the semiconductor device 有权
能够控制OCD和ODT电路的半导体器件和半导体器件使用的控制方法

Semiconductor device capable of controlling OCD and ODT circuits and control method used by the semiconductor device
摘要：
Provided is a semiconductor device capable of controlling an on-die-termination (ODT) circuit and an off-chip-driver (OCD) circuit and a control method used by the semiconductor device. The semiconductor device includes a control code generation unit generating a control code in response to a control signal, an addition unit adding an adjustment code to the control code to produce an adjusted control code, and an ODT circuit, wherein an impedance of the ODT circuit is adjusted in response to the adjusted control code. The semiconductor device can adjust the control code more precisely by adding or subtracting the adjustment code to or from the control code. Accordingly, the impedance of an OCD circuit or ODT circuit can be adjusted more precisely.
摘要（中）：

提供了能够控制芯片上终端（ODT）电路和芯片外驱动器（OCD）电路的半导体器件以及由半导体器件使用的控制方法。 半导体器件包括响应于控制信号产生控制代码的控制代码生成单元，向控制代码添加调整代码以产生调整后的控制代码的加法单元和ODT电路，其中ODT电路的阻抗 根据调整后的控制代码进行调整。 半导体器件可以通过向或从控制代码添加或减去调整代码来更精确地调整控制代码。 因此，可以更精确地调整OCD电路或ODT电路的阻抗。

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