Queued serial peripheral interface having multiple queues for use in a
data processing system
    1.
    发明授权
    Queued serial peripheral interface having multiple queues for use in a data processing system 失效
    具有用于数据处理系统的多个队列的排队串行外设接口

    公开(公告)号:US5805922A

    公开(公告)日:1998-09-08

    申请号:US237437

    申请日:1994-05-02

    IPC分类号: G06F13/38 G06F13/00

    CPC分类号: G06F13/385

    摘要: Serial communication circuitry (10) having multiple queues (11-14) for use in a data processing system (95). Each queue (11-14) has multiple entries (52). Serial transfers from the multiple queues (11-14) are carried out under the control of global parameters (e.g. 205, 209), per-queue parameters (e.g. 211-212, 214-217), and per-entry parameters (e.g. 350-361). Each queue can be programmed to have a different set of per-queue parameters, and each entry within a queue can be programmed to have a different set of per-entry parameters. In addition, serial communication circuitry (10) can perform serial data transfers in response to the assertion of a trigger signal (30) from a source such as a timer (63) or a central processing unit (61). As a result, data transfers can be more precisely related to a particular timing signal or set of timing signals.

    摘要翻译: 具有用于数据处理系统(95)的多个队列(11-14)的串行通信电路(10)。 每个队列(11-14)具有多个条目(52)。 来自多个队列(11-14)的串行传输在全局参数(例如205,209),每队列参数(例如211-212,214-217)和每个入口参数(例如350 -361)。 每个队列可以被编程为具有不同的每队列参数集合,并且队列内的每个条目可被编程为具有不同的每个入口参数集合。 此外,串行通信电路(10)可以响应于来自诸如定时器(63)或中央处理单元(61)的源的触发信号(30)的断言来执行串行数据传输。 结果,数据传输可以更精确地与特定的定时信号或一组定时信号有关。

    Automatic A/D converter operation with pause capability
    2.
    发明授权
    Automatic A/D converter operation with pause capability 失效
    自动A / D转换器具有暂停功能

    公开(公告)号:US5302952A

    公开(公告)日:1994-04-12

    申请号:US936492

    申请日:1992-08-28

    IPC分类号: G06F3/05 H03M1/12

    CPC分类号: G06F3/05

    摘要: An analog-to-digital conversion module, QADC (1), and method minimize software involvement by providing a pause capacility. Each queue in the QADC (1) has one or more Conversion Command Words, CCWs (82), in a Conversion Command Word Table (62). Each conversion command word, CCW (82), has a Pause bit which can be used to create multiple sub-queues of A/D conversions without requiring the use of interrupts. The Pause bit can be used to place a queue in a pause state. When a queue enters a pause state, the scanning of CCWs (82) is stopped. The queue must then receive a trigger in order for the scanning of CCWs (82) to continue again.

    摘要翻译: 模数转换模块QADC(1)和方法通过提供暂停能力来最大限度地减少软件参与。 在转换命令字表(62)中,QADC(1)中的每个队列具有一个或多个转换命令字CCW(82)。 每个转换命令字CCW(82)都有一个暂停位,可以用于创建多个A / D转换子队列,而不需要使用中断。 暂停位可用于将队列置于暂停状态。 当队列进入暂停状态时,CCW(82)的扫描被停止。 队列必须接收一个触发器才能扫描CCW(82)再次继续。