发明授权
- 专利标题: On-chip observability buffer to observer bus traffic
- 专利标题(中): 观察员总线流量的片上可观察性缓冲区
-
申请号: US09752880申请日: 2000-12-28
-
公开(公告)号: US07171510B2公开(公告)日: 2007-01-30
- 发明人: Matthew B. Haycock , Shekhar Y. Borkar , Stephen R. Mooney , Aaron K. Martin , Joseph T. Kennedy
- 申请人: Matthew B. Haycock , Shekhar Y. Borkar , Stephen R. Mooney , Aaron K. Martin , Joseph T. Kennedy
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: G06F13/36
- IPC分类号: G06F13/36 ; G06F13/14 ; G06F11/00 ; G01R31/00 ; G01R31/14
摘要:
The invention provides, in an embodiment, an apparatus, method and means for unintrusively observing, echoing and reading signals transmitted by one of a bus and wireless communication, without disturbing electrical properties of the bus, without adding bus latency, and without adding signal discontinuities. In an aspect, a buffer having a trigger is coupled with a component that connects to a memory bus, the buffer echoes signals to an observability port, and a diagnostic device reads the echoed signals. In an aspect, the bus is one of a simultaneous bi-directional (SBD) bus having ternary logic levels, a single ended bus, a differential bus, an optically coupled bus, a chipset bus, a frontside bus, an input/output (I/O) bus, a peripheral component interface (PCI) bus, and an industry standard architecture (ISA) bus. In an aspect, the buffer echoes bus signals having frequencies between 500 MHz. and 5 GHz. In an aspect, the buffer echoes bus signals having frequencies of at least 5 GHz.
公开/授权文献
- US20020095622A1 Observability buffer 公开/授权日:2002-07-18