| 摘要 |
A method and apparatus for syncing multiple bus masters (110, 120, 130, 140) utilize a sync bus (160) to communicate synchronization information between a plurality of bus masters. For each bus master, a check is made after instruction fetch (350) for a "sync indicator" (360). When a sync indicator is detected (360), the bus master transmits sync signals on the sync bus (160) indicating which masters it needs to sync with (365). The bus master then stalls instruction dispatch (390) until the corresponding sync signals are received (370) on the sync bus (160) from the other bus masters. A further programmed delay may be introduced after the bus masters have matched sync signals (375), enabling through testing for timing windows.
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