11/12/2010

VMEbus Fast Data Channel Specification VXI-10

http://www.cadfamily.com/downinfo/302223.html

In a Normal channel the abort receiver sets the ABT, RDY, WDY and END bits to 0 (zero) and returns the channel to the Idle state. It discards any data which was received during the aborted transfer. The abort generator returns the channel to the Idle state when the ABT bit is returned to 0 by the abort receiver.
In a Stream channel the abort receiver sets the ABT bit to 0 but does not change the state of the channel;the channel remains in the Active state. It discards any data which was received during the aborted block transfer.
When the abort receiver is the servant and the channel was established with a Transfer To Servant command, the error receiver must pass the FDC area to the commander. If the abort receiver is the commander and the channel was established with a Transfer To Commander command, the error receiver must pass the FDC area to the servant. If the stream channel utilizes a channel pair then both FDC areasshould be returned as defined above.

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