Parallel operating CPU core and DSP module for executing sequence of
vector DSP code instructions to generate decoded constellation points
in QAM/TCM modem application
    1.
    发明授权
    Parallel operating CPU core and DSP module for executing sequence of vector DSP code instructions to generate decoded constellation points in QAM/TCM modem application 失效
    并行运行CPU内核和DSP模块,用于执行矢量DSP代码指令序列,以在QAM / TCM调制解调器应用中生成解码的星座点

    公开(公告)号:US5625828A

    公开(公告)日:1997-04-29

    申请号:US271204

    申请日:1994-07-01

    摘要: An integrated data processing system includes a shared internal bus for transferring both instructions and data. A shared bus interface unit is connected to the shared internal bus and connectable via a shared external bus to a shared external memory array such that instructions and data held in the shared external memory array are transferrable to the shared internal bus via the shared bus interface unit. A general purpose (GP) central processing unit (CPU) is connected to the shared internal bus for retrieving GP instructions. The GP CPU includes an execution unit for executing GP instructions to process data retrieved by the GP CPU from the shared internal bus. A digital signal processor (DSP) module connected to the shared internal bus, the DSP module includes a signal processor for processing an externally-provided digital signal received by the DSP module by executing DSP command-list instructions. Execution of DSP command-list code instructions by the DSP module is independent of and in parallel with execution of GP instructions by the GP CPU. The system executes a novel QAM.backslash.TCM modem algorithm.

    摘要翻译: 集成数据处理系统包括用于传送指令和数据的共享内部总线。 共享总线接口单元连接到共享内部总线,并通过共享外部总线连接到共享外部存储器阵列,使得保存在共享外部存储器阵列中的指令和数据可经由共享总线接口单元传送到共享内部总线 。 通用(GP)中央处理单元(CPU)连接到共享内部总线,用于检索GP指令。 GP CPU包括一个执行单元,用于执行GP指令以处理由GP CPU从共享内部总线检索的数据。 连接到共享内部总线的数字信号处理器(DSP)模块,DSP模块包括用于通过执行DSP命令列表指令来处理由DSP模块接收的外部提供的数字信号的信号处理器。 DSP模块执行DSP命令列表代码指令与GP CPU执行GP指令无关,并行执行GP指令。 系统执行新颖的QAM + 544 TCM调制解调器算法。

    Debug mechanism for parallel-operating DSP module and CPU core
    6.
    发明授权
    Debug mechanism for parallel-operating DSP module and CPU core 失效
    并行操作DSP模块和CPU内核的调试机制

    公开(公告)号:US5596764A

    公开(公告)日:1997-01-21

    申请号:US307385

    申请日:1994-09-14

    摘要: An integrated data processing system includes a shared internal bus for transferring both instructions and data. A shared bus interface unit is connected to the shared internal bus and connectable via a shared external bus to a shared external memory array such that instructions and data held in the shared external memory array are transferrable to the shared internal bus via the shared bus interface unit. A general purpose (GP) central processing unit (CPU) is connected to the shared internal bus for retrieving GP instructions. The GP CPU includes an execution unit for executing GP instructions to process data retrieved by the GP CPU from the shared internal bus. A digital signal processor (DSP) module connected to the shared internal bus, the DSP module includes a signal processor for processing an externally-provided digital signal received by the DSP module by executing DSP command-list instructions. Execution of DSP command-list code instructions by the DSP module is independent of and in parallel with execution of GP instructions by the GP CPU. A shared internal memory that holds command-list code instructions and is connected for access by the DSP module for retrieval of command-list code instructions for execution by the DSP module and for access by the GP CPU for storage and retrieval of instructions and data.

    摘要翻译: 集成数据处理系统包括用于传送指令和数据的共享内部总线。 共享总线接口单元连接到共享内部总线,并通过共享外部总线连接到共享外部存储器阵列,使得保存在共享外部存储器阵列中的指令和数据可经由共享总线接口单元传送到共享内部总线 。 通用(GP)中央处理单元(CPU)连接到共享内部总线,用于检索GP指令。 GP CPU包括一个执行单元,用于执行GP指令以处理由GP CPU从共享内部总线检索的数据。 连接到共享内部总线的数字信号处理器(DSP)模块,DSP模块包括用于通过执行DSP命令列表指令来处理由DSP模块接收的外部提供的数字信号的信号处理器。 DSP模块执行DSP命令列表代码指令与GP CPU执行GP指令无关,并行执行GP指令。 共享的内部存储器,其保存命令列表代码指令,并且被连接以供DSP模块访问,用于检索由DSP模块执行的命令列表代码指令,并由GP CPU访问用于存储和检索指令和数据。