Method and circuit for providing a system level reset function for an electronic device
    2.
    发明授权
    Method and circuit for providing a system level reset function for an electronic device 有权
    为电子设备提供系统电平复位功能的方法和电路

    公开(公告)号:US07089133B1

    公开(公告)日:2006-08-08

    申请号:US10942523

    申请日:2004-09-15

    IPC分类号: G06F19/00 G06F1/24

    CPC分类号: G06F1/24

    摘要: A method and circuit provide a system level reset function for an electronic device. An initial reset function is provided under a low voltage condition of supply voltage, such as occur upon first energizing the electronic device. A tunable reset function is also provided, which can first be asserted at a voltage level setting less precise than that setting becomes upon tuning. Further, a boot-up reset function is provided, which provides its reset function at a voltage level setting that is set according to a calibration. Calibration can be based on data stored in a non-volatile memory, and can involve a checksum operation. The electronic device, a microcontroller for instance, is held in a reset state with any of the initial, tunable, and boot-up reset functions.

    摘要翻译: 方法和电路为电子设备提供系统级复位功能。 在电源电压的低电压条件下提供初始复位功能,例如在电子设备首次通电时发生。 还提供了可调谐复位功能,其可以首先在比调谐时设置的精度低的电压电平设置下被断言。 此外,提供启动复位功能,其提供其按照校准设置的电压电平设置的复位功能。 校准可以基于存储在非易失性存储器中的数据,并且可以涉及校验和操作。 例如,电子设备(例如微控制器)被保持在具有任何初始,可调谐和启动复位功能的复位状态。

    Multifunction input/output circuit
    7.
    发明授权
    Multifunction input/output circuit 有权
    多功能输入/输出电路

    公开(公告)号:US08217700B1

    公开(公告)日:2012-07-10

    申请号:US12496590

    申请日:2009-07-01

    IPC分类号: H03L5/00

    CPC分类号: H03K19/1732

    摘要: In one example, a chip includes integrated components configured to operate in the digital domain and the analog domain. An I/O pad located on the chip is configured to provide an external device access to the integrated components. A multifunction I/O interface cell between the I/O pad and the integrated components is configured to selectively connect different combinations of the components to the same I/O pad at different times. The multifunction I/O interface cell may include a first switching device connected to ground, a second switching device connected to a reference voltage, an analog input/output buffer, and a digital input/output buffer.

    摘要翻译: 在一个示例中,芯片包括被配置为在数字域和模拟域中操作的集成组件。 位于芯片上的I / O焊盘被配置为提供对集成部件的外部设备访问。 I / O焊盘和集成组件之间的多功能I / O接口单元被配置为在不同时间有选择地将组件的不同组合连接到相同的I / O焊盘。 多功能I / O接口单元可以包括连接到地的第一开关器件,连接到参考电压的第二开关器件,模拟输入/输出缓冲器和数字输入/输出缓冲器。

    Variable reference voltage circuit for non-volatile memory
    9.
    发明申请
    Variable reference voltage circuit for non-volatile memory 有权
    用于非易失性存储器的可变参考电压电路

    公开(公告)号:US20070217271A1

    公开(公告)日:2007-09-20

    申请号:US11385235

    申请日:2006-03-20

    IPC分类号: G11C5/14

    CPC分类号: G11C5/147 G11C16/30

    摘要: A variable reference voltage circuit for performing memory operation on non-volatile memory includes a multi-level voltage source and a selector circuit. The multi-level voltage source generates multiple voltages. The selector circuit includes a selector input and a selector output. The selector input is coupled to the multi-level voltage source to selectively couple any of the multiple voltages to the selector output. The selector output of the selector circuit is coupled to a non-volatile memory array to provide the NV memory array with a selectable program voltage for programming the NV memory array and a selectable erase voltage for erasing the NV memory array.

    摘要翻译: 用于在非易失性存储器上执行存储器操作的可变参考电压电路包括多电平电压源和选择器电路。 多电平电压源产生多个电压。 选择器电路包括选择器输入和选择器输出。 选择器输入耦合到多电平电压源以选择性地将多个电压中的任一个耦合到选择器输出。 选择器电路的选择器输出耦合到非易失性存储器阵列,以向NV存储器阵列提供用于编程NV存储器阵列的可选择的编程电压和用于擦除NV存储器阵列的可选擦除电压。

    Device with reconfigurable continuous and discrete time functionality
    10.
    发明授权
    Device with reconfigurable continuous and discrete time functionality 有权
    具有可重构连续和离散时间功能的设备

    公开(公告)号:US08111097B1

    公开(公告)日:2012-02-07

    申请号:US12762207

    申请日:2010-04-16

    IPC分类号: H04B1/60

    CPC分类号: H03K25/04

    摘要: A programmable system includes a programmable analog device including an operational amplifier to generate an output voltage based on input voltages at terminals of the operational amplifier. The programmable system also includes a system controller to direct the programmable analog device to reconfigure analog circuitry providing the input voltages to the operational amplifier. The reconfiguration of the analog circuitry allows the programmable analog device to implement discrete-time or continuous-time functions.

    摘要翻译: 可编程系统包括可编程模拟装置,其包括运算放大器,以基于运算放大器端子处的输入电压产生输出电压。 可编程系统还包括系统控制器,用于引导可编程模拟装置重新配置向运算放大器提供输入电压的模拟电路。 模拟电路的重新配置允许可编程模拟设备实现离散时间或连续时间功能。