Enhanced VMEbus protocol utilizing pseudosynchronous handshaking and block mode data transfer
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United States of America Patent
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Feb 7, 1995
Issued Date -
N/A
app pub date -
Apr 12, 1994
filing date -
Sep 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pseudo-synchronous fast transfer handshake protocol compatible for use on a VMS backplane bus having a master functional module and a slave functional module logically interconnected by a data transfer bus. The data transfer bus includes a data strobe signal line and a data transfer acknowledge signal line. To accomplish the handshake, the master transmits a data strobe signal of a given duration on the data strobe line. The master then awaits the reception of a data transfer acknowledge signal from the slave module on the data transfer acknowledge signal line. The slave then responds by transmitting a data transfer acknowledge signal of a given duration on the data transfer acknowledge signal line.
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