Microprocessor
    1.
    发明授权
    Microprocessor 失效
    微处理器

    公开(公告)号:US5070473A

    公开(公告)日:1991-12-03

    申请号:US77442

    申请日:1987-07-24

    IPC分类号: G06F13/28 G06F13/42

    CPC分类号: G06F13/4213

    摘要: A wait signal formed by a program wait circuit incorporated in a microprocessor is transmitted to outside circuitry, such as a slave microprocessor or a direct memory access control device. Thereby an outside device assumes the functions of bus master which is incorporated into a wait operation for access to a memory unit. With such a construction, a microcomputer system comprising a plurality of devices to be made into a bus mask can be simplified.

    摘要翻译: 由并入微处理器的程序等待电路形成的等待信号被发送到诸如从微处理器或直接存储器存取控制装置的外部电路。 因此,外部设备承担总线主控器的功能,其被并入到用于访问存储器单元的等待操作中。 通过这样的结构,可以简化包括要制成总线掩模的多个装置的微计算机系统。

    Data processing system for development of outline fonts
    7.
    发明授权
    Data processing system for development of outline fonts 失效
    数据处理系统用于开发大纲字体

    公开(公告)号:US5293586A

    公开(公告)日:1994-03-08

    申请号:US958610

    申请日:1992-10-08

    摘要: A single chip microcomputer formed on a semiconductor substrate includes a central processing unit, a ROM storing therein a program for operating the central processing unit, a digital signal processor, and a multi-port RAM. The digital signal processor develops an outline font on the multi-port RAM in accordance with a program stored in a storage unit provided in the digital signal processor. This eliminates the necessity of development of an outline font by the central processing unit and allows high speed execution of such development of an outline font. Further, the central processing unit and the digital signal processor can operate in a parallel relationship.

    摘要翻译: 形成在半导体基板上的单芯片微计算机包括中央处理单元,存储有用于操作中央处理单元的程序的ROM,数字信号处理器和多端口RAM。 数字信号处理器根据存储在数字信号处理器中的存储单元中的程序,在多端口RAM上形成轮廓字体。 这消除了由中央处理单元开发轮廓字体的必要性,并允许高速执行轮廓字体的这种开发。 此外,中央处理单元和数字信号处理器可以并行运行。