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专利名称：Quasi-synchronous information transfer and
phase alignment means for enabling same
发明人：Jeffrey J. Ruedinger,Peter Rudolph,Hermann
Schulze Scholling
申请号：US07/916319申请日：19920717公开号：US05450572A公开日：19950912
摘要：A quasi-synchronous information (clocking, data, control signals) transferbetween a master unit A and at least one neighbor unit B offers the advantage that onetransfer can occur every cycle where any interface delays are tolerated. When the masterunit A sends its internal clock along with data and/or control signals to its neighbor unitB, the last named unit receives this clock and derives any and all locally required clocksfrom this clock. This keeps unit B exactly at the same frequency as unit A, although aphase shift occurs. Unit B also sends its internal clock along with data and/or controlsignals to unit A. When the clock signals arrive back at unit A, they will have exactly thesame frequency as the internal clock of unit A but also an additional phase shift.Compensation of the overall phase shift will be done by a phase alignment means towhich all signals are sent on their way to unit A.
申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION
代理人：Arthur J. Samodovitz
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