Apparatus for monitoring data transfers of an oemi channel inter

Details Apparatus for monitoring data transfers of an oemi channel inter Apparatus for monitoring data transfers of an oemi channel inter

1990-08-31

1994-03-22

Atkinson, Charles E.

Excavating

371 165, 371 19, G06F 1100

Patent

active

052972771

ABSTRACT:
A channel adapter monitoring device for tracing OEMI channel data and tags. The device is configurable via a support processor and supervisory microprocessor. A trace array memory stores events identified by a configurable write register. A timer is provided to permit a time stamp entry to be made with each data entry of detected events. The microprocessor can address the trace memory over an MMIO bus and recover the stored data for analysis.

REFERENCES:
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patent: 4611281 (1986-09-01), Suko et al.
patent: 4720782 (1988-01-01), Kovalcin
patent: 4723270 (1988-02-01), Okamoto et al.
patent: 4751670 (1988-06-01), Hess
patent: 4791563 (1988-12-01), Kling
patent: 4802167 (1989-01-01), Sawaya et al.
patent: 5058114 (1991-10-01), Kuboki et al.
IBM Technical Disclosure Bulletin, vol. 31, No. 7, Dec. 1988.

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