Method and apparatus for an efficient memory built-in self test architecture for high performance microprocessors
    1.
    发明授权
    Method and apparatus for an efficient memory built-in self test architecture for high performance microprocessors 有权
    用于高性能微处理器的高效存储器内置自检架构的方法和装置

    公开(公告)号:US07260759B1

    公开(公告)日:2007-08-21

    申请号:US10869698

    申请日:2004-06-16

    IPC分类号: G01R31/28

    CPC分类号: G01R31/3187

    摘要: A memory BIST architecture provides an efficient communication interface between external agents, e.g., external tester and a memory BIST module. The memory BIST architecture reduces diagnostics efforts by dividing the search space and allowing the test and debug to be concentrated on the failing memory. The memory BIST architecture is divided into two levels, a memory BIST sequencer level and a satellite memory BIST module. The memory BIST sequencer level includes a set of registers that provide an interface between external agents attempting to communicate with the MBIST module and the Satellite MBIST module.

    摘要翻译: 存储器BIST架构在外部代理(例如外部测试器和存储器BIST模块)之间提供有效的通信接口。 内存BIST架构通过划分搜索空间来减少诊断工作,并允许测试和调试集中在故障存储器上。 存储器BIST架构被分为两个级别,一个存储器BIST定序器级和一个卫星存储器BIST模块。 存储器BIST定序器级别包括一组寄存器,其提供尝试与MBIST模块和卫星MBIST模块通信的外部代理之间的接口。

    SCSI interface employing bus extender and auxiliary bus
    3.
    发明授权
    SCSI interface employing bus extender and auxiliary bus 失效
    采用总线扩展器和辅助总线的SCSI接口

    公开(公告)号:US5274783A

    公开(公告)日:1993-12-28

    申请号:US723149

    申请日:1991-06-28

    IPC分类号: G06F13/36 G06F13/40 G06F13/00

    CPC分类号: G06F13/4045 G06F13/4036

    摘要: A bus interface employs a bus extender for connecting an auxiliary bus to a single port on a main bus in such a way as to interconnect one or more host computers on the main bus to one or more peripheral devices on the auxiliary bus. The bus extender employs a transceiver coupled to the main bus, another coupled to the auxiliary bus, and signal transfer and logic circuitry passing signals between and controlling the operation of the transceivers. The circuitry also performs all address translation necessary for inter-bus communication. Once communication links have been established with the designated devices on the other bus, the extender sends message data signals received over the one bus directly onto the other bus without modification. Since the interface can comply with SCSI standards, any of a variety of types of commercially available peripheral devices having controllers complying with those standards can be supported on the auxiliary bus.