A METHOD AND APPARATUS FOR SYNCHRONIZING A CONTROL SIGNAL,申请号WO1998US14152-传众专利搜索

A METHOD AND APPARATUS FOR SYNCHRONIZING A CONTROL SIGNAL

申请公布号：WO9904528(A1)

申请号：WO1998US14152

申请日期：1998.07.10

申请公布日期：1999.01.28

申请人：

RAMBUS INCORPORATED

发明人：PORTMANN, CLEMENZ;DILLON, JOHN, B.

分类号：G06F1/10;H04L7/02;H04L7/033;(IPC1-7):H04L7/00

主分类号：G06F1/10

摘要：A synchronization circuit for gradually shifting the phase domain of a control signal (530) to permit synchronization of a signal with a clock signal (500) in a different phase domain in a system with a single frequency, but arbitrary phase relationship. The present invention allows a control signal (530) in the phase domain of an internal clock to be synchronized with an external clock (500), when the phase domain of the external clock differs substantially from that of the internal clock. In synchronizing the control signal (530) to the external clock (500), the present invention avoids the generation of runt pulses while providing a control signal synchronized to the external clock in the least amount of time feasible (i.e. lowest latency time). Because the present invention has no failure modes due to timing relationships, MTBF is infinite for failures caused by such relationships and therefore need not be a concern. This also implies that no risk is posed to the proper operation of the circuits driven thereby.