公开(公告)号：US07840781B1

公开(公告)日：2010-11-23

申请号：US11732721

申请日：2007-04-04

Applicant: Sivakumar Velusamy ,  Navaneethan Sundaramoorthy ,  Raj Kumar Nagarajan ,  Satish R. Ganesan

Inventor： Sivakumar Velusamy ,  Navaneethan Sundaramoorthy ,  Raj Kumar Nagarajan ,  Satish R. Ganesan

IPC: G06F13/00

CPC classification number: G06F11/3636 ,  G06F11/348 ,  G06F11/364 ,  G06F11/3648

Abstract: Various approaches for profiling a target system are described. In one approach, a uni-directional, point-to-point bus has a single input port and a single output port. A target processor has a trace port coupled to the input port of the bus and is configured to execute a plurality of instructions one or more times. The target processor provides state data at the trace port and to the input port of the bus. A profile circuit arrangement is coupled to the output port of the first bus, and a memory is coupled to the profile circuit arrangement. The profile circuit arrangement is configured to read data from the output port of the first bus and write the data to the memory.

Abstract translation: 描述用于分析目标系统的各种方法。 在一种方法中，单向点对点总线具有单个输入端口和单个输出端口。 目标处理器具有耦合到总线的输入端口的跟踪端口，并且被配置为执行多个指令一次或多次。 目标处理器在跟踪端口和总线的输入端口提供状态数据。 简档电路布置被耦合到第一总线的输出端口，并且存储器耦合到简档电路装置。 简档电路装置被配置为从第一总线的输出端口读取数据并将数据写入存储器。

公开(公告)号：US07453286B1

公开(公告)日：2008-11-18

申请号：US11788657

申请日：2007-04-19

Applicant: Jorge Ernesto Carrillo ,  Raj Kumar Nagarajan ,  James M. Pangburn ,  Navaneethan Sundaramoorthy

Inventor： Jorge Ernesto Carrillo ,  Raj Kumar Nagarajan ,  James M. Pangburn ,  Navaneethan Sundaramoorthy

IPC: G06F7/38 ,  H03K19/173

CPC classification number: G06F7/026

Abstract: A method of implementing a comparator in a device having programmable logic is described. The method comprises implementing a first comparison function in a first lookup table; implementing a second comparison function in a second lookup table; and using an output associated with the first comparison function to select an output of the comparator. A device having programmable logic comprising a comparator is also described.

Abstract translation: 描述了在具有可编程逻辑的设备中实现比较器的方法。 该方法包括在第一查找表中实现第一比较功能; 在第二查找表中实现第二比较功能; 以及使用与第一比较功能相关联的输出来选择比较器的输出。 还描述了具有包括比较器的可编程逻辑的装置。