Resistor identification configuration circuitry and associated method

    公开(公告)号:US20060179047A1

    公开(公告)日:2006-08-10

    申请号:US11334862

    申请日:2006-01-19

    IPC分类号: G06F17/30

    摘要: Programmable on-chip identification circuitry and associated method are disclosed that provide integrated circuits with the ability to select and report from multiple different vendor and system identification configurations. The integrated circuit device includes programmable circuitry that utilizes vendor identification, system identification, configuration or other device information provided or selected at least in part based upon selection information from a source external to the integrated circuit. The selection information may be provided through one or more externally generated digital and/or analog control signals that are then processed within the integrated circuit device to select, access and utilize desired identification information stored in an on-chip database. For example, one or more analog control signals can be generated using resistor circuits for which specific selectable resistor configurations map to particular information stored in a look-up table or other database structure within the integrated circuit. The analog control signals are converted to digital values within the integrated circuit, and these digital values are used to select device information from the on-chip database. Furthermore, the selected device information can be stored in on-chip device information registers. And the digital values themselves can be stored and used as identification, configuration or other device information.

    MCU WITH INTEGRATED VOLTAGE ISOLATOR AND INTEGRATED GALVANICALLY ISOLATED ASYNCHRONOUS SERIAL DATA LINK
    2.
    发明申请
    MCU WITH INTEGRATED VOLTAGE ISOLATOR AND INTEGRATED GALVANICALLY ISOLATED ASYNCHRONOUS SERIAL DATA LINK 失效
    具有集成电压隔离器的MCU和集成的气象分离异步串行数据链路

    公开(公告)号:US20080317106A1

    公开(公告)日:2008-12-25

    申请号:US12165011

    申请日:2008-06-30

    IPC分类号: H04B1/40

    摘要: An integrated circuit comprises a first microcontroller unit for executing instructions in accordance with a first clock frequency. The microcontroller located on a first die and includes a first processing core for providing a parallel stream of data in accordance with the first clock frequency. A second microcontroller unit executes instructions in accordance with the first clock frequency. The second microcontroller is located on a second die and includes a second processing core for receiving the parallel stream of data in accordance with the first clock frequency. Capacitive isolation circuitry connected with the first microcontroller unit and the second microcontroller unit provides a high voltage isolation link between the first and the second microcontroller units. The capacitive isolation circuitry distributing a first portion of a high voltage isolation signal across a first group of capacitors associated with the first microcontroller unit and distributes a second portion of the high voltage isolation signal across a second group of capacitors associated with the second microcontroller unit. The capacitive isolation circuitry further transmits data from the parallel data stream between the first microcontroller and the second microcontroller in a serial data stream in accordance with the second clock frequency.

    摘要翻译: 集成电路包括用于根据第一时钟频率执行指令的第一微控制器单元。 微控制器位于第一管芯上并且包括用于根据第一时钟频率提供并行数据流的第一处理核心。 第二微控制器单元根据第一时钟频率执行指令。 第二微控制器位于第二管芯上,并且包括用于根据第一时钟频率接收并行数据流的第二处理核。 与第一微控制器单元和第二微控制器单元连接的电容隔离电路在第一和第二微控制器单元之间提供高电压隔离链路。 电容隔离电路将高电压隔离信号的第一部分跨越与第一微控制器单元相关联的第一组电容器分配,并将第二部分高电压隔离信号分配到与第二微控制器单元相关联的第二组电容器上。 电容隔离电路还根据第二时钟频率在串行数据流中从第一微控制器和第二微控制器之间的并行数据流传输数据。