System for data transfer protection during module connection/disconnection onto live bus
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United States of America Patent
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-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Dec 1, 1994
filing date -
Dec 1, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plurality of digital modules on a Futurebus Plus common system bus means in a network are connected by the Futurebus Plus system bus for transfer of data between modules. A sending module (master) transmits address and message data on the bus to a receiving module (slave). Each module provides an interface having a Longitudinal Redundancy Checker such that the sending module transmits a first check word to the receiving module which generates a second check-word. If these check words match, then the data is accepted as good. Thus, the network can work continuously using the system bus even while new digital modules are inserted onto the system bus or detached from the system bus.
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