Data processing system with unified I/O control and adapted for display
of graphics
    1.
    发明授权
    Data processing system with unified I/O control and adapted for display of graphics 失效
    数据处理系统具有统一的I / O控制,适用于显示图形

    公开(公告)号:US4757443A

    公开(公告)日:1988-07-12

    申请号:US624077

    申请日:1984-06-25

    CPC分类号: G09G5/36 G06F3/153

    摘要: A data processing system which includes a central processing unit (CPU) to which is connected an I/O bus and a memory bus is disclosed. The data processing system further includes an I/O controller and a video control section. The I/O controller includes a terminal control section which is connected to the CPU through an RS232 Cable, an I/O control section which is connected to the I/O bus over a single line and a single processor for managing both the terminal control section and the I/O control section. The I/O control section includes a plurality of interface and control subsystems each for use with a separate peripheral device and an I/O bus interface and control subsystem. The terminal control section includes a video control section interface through which data is sent directly to the video control section over a separate line, and a keyboard interface for interfacing the terminal control section to a keyboard. The video control section includes a video memory and a microprocessor which are both connected to the memory bus.

    摘要翻译: 公开了一种包括连接有I / O总线和存储器总线的中央处理单元(CPU)的数据处理系统。 数据处理系统还包括I / O控制器和视频控制部分。 I / O控制器包括通过RS232电缆连接到CPU的终端控制部分,通过单个线路连接到I / O总线的I / O控制部分和用于管理终端控制的单个处理器 部分和I / O控制部分。 I / O控制部分包括多个接口和控制子系统,每个接口和控制子系统与单独的外围设备和I / O总线接口和控制子系统一起使用。 终端控制部分包括视频控制部分接口,数据通过单独的线直接发送到视频控制部分,以及键盘接口,用于将终端控制部分连接到键盘。 视频控制部分包括都连接到存储器总线的视频存储器和微处理器。

    Video control section for a data processing system
    2.
    发明授权
    Video control section for a data processing system 失效
    数据处理系统的视频控制部分

    公开(公告)号:US4701865A

    公开(公告)日:1987-10-20

    申请号:US624175

    申请日:1984-06-25

    申请人: Robert W. Goodman

    发明人: Robert W. Goodman

    IPC分类号: G09G5/36 G09G5/39 G06F3/14

    CPC分类号: G09G5/363 G09G2360/126

    摘要: A video control section for a data processing system for controlling a CRT display is disclosed. The video control section includes a video memory comprising an array of dual port RAMS which is connected through an interface to the system memory bus, a shifter, a palette, a D/A converter, an oscillator section, a timing and synchronizer section and a microprocessor. The microprocessor, which is connected to the system memory bus through an interface, manages the overall operations of the video control section to generate video signals for the CRT display and in addition along with the oscillator section and timing and synchronizer section generates all of the video timing and control signals for the CRT display.

    摘要翻译: 公开了一种用于控制CRT显示器的数据处理系统的视频控制部分。 视频控制部分包括视频存储器,其包括通过与系统存储器总线的接口连接的双端口RAMS阵列,移位器,调色板,D / A转换器,振荡器部分,定时和同步器部分以及 微处理器。 通过接口连接到系统存储器总线的微处理器管理视频控制部分的总体操作以产生用于CRT显示器的视频信号,此外,与振荡器部分一起,定时和同步器部分产生所有视频 CRT显示器的定时和控制信号。