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The VMEbus specification restricts block transfers from cross- ing 256-byte boundaries without toggling the address strobe, in addition to restricting the maximum length of the transfer to 256 bytes. The VIC068A allows for easy implementation of block transfers that exceed the 256-byte restriction by releas- ing the VMEbus at the appropriate time and rearbitrating for the bus at a programmed time later (this in-between time is referred to as the interleave period), while at the same time holding both the local and VMEbus addresses with internal latches. All of this is performed without processor/software in- tervention until the transfer is complete.