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    • 1. 发明授权
    • Data processing circuit
    • 数据处理电路
    • US5495433A
    • 1996-02-27
    • US353163
    • 1994-12-09
    • Yukari TakataYukihiko Shimazu
    • Yukari TakataYukihiko Shimazu
    • G06F7/00G06F7/48G06F9/30G06F9/34G06F7/38
    • G06F7/48G06F2207/382
    • A data processing circuit being provided with a select and output circuit 5 selectively outputting an operation result of an arithmetic logic unit (ALU)4 to a D bus 8, a temporary latch 2 holding a data part of a register 11 into which the operation result is written, and a select and output circuit 3 selectively outputting the data held in the temporary latch 2 to the D bus 8, wherein the select and output circuit 5 for the ALU 4 outputs only bits corresponding to a designated writing size to the D bus 8, the select and output circuit 3 for the temporary latch 2 outputs other than bits corresponding to the designated writing size to the D bus 8, and the register 11 inputs and stores data from the D bus 8, thereby leading to be capable of reducing the area of the register file 1.
    • 一种数据处理电路,其具有选择和输出电路5,其选择性地向D总线8输出算术逻辑单元(ALU)4的运算结果;保存寄存器11的数据部分的临时锁存器2,其中运算结果 并且选择和输出电路3选择性地将保存在临时锁存器2中的数据输出到D总线8,其中用于ALU 4的选择和输出电路5仅将对应于指定写入大小的位输出到D总线 如图8所示,用于临时锁存器2的选择和输出电路3将与指定写入大小相对应的位输出到D总线8,并且寄存器11输入并存储来自D总线8的数据,从而导致能够减少 寄存器文件的区域1。
    • 4. 发明授权
    • Arbitration circuit and data processing system
    • 仲裁电路和数据处理系统
    • US07051133B2
    • 2006-05-23
    • US10603809
    • 2003-06-26
    • Yukari Takata
    • Yukari Takata
    • G06F13/14G06F13/36
    • G06F13/364
    • An arbitration circuit and a data processing system which ensure fair bus access are provided. An arbitration circuit (1) has a priority check block (21) and a round robin block (22). The priority check block (21) checks pieces of priority information provided from processors, specifies a processor that is presenting priority information with the highest priority, i.e. a processor with the highest priority level, and outputs the result of the check (CHK) to the round robin block (22). The round robin block (22), holding the results of the previous arbitration process, generates and outputs a processor selecting signal (SE) on the basis of the priority check result (CHK) and a round robin order generated from the previous results.
    • 提供了确保公平总线访问的仲裁电路和数据处理系统。 仲裁电路(1)具有优先级检查块(21)和循环块(22)。 优先级检查块(21)检查从处理器提供的优先级信息,指定正在呈现具有最高优先级的优先级信息的处理器,即具有最高优先级的处理器,并将检查结果(CHK)输出到 循环块(22)。 保持先前仲裁处理结果的循环块(22)根据优先级检查结果(CHK)和从先前结果​​生成的轮询顺序生成并输出处理器选择信号(SE)。