CD1865 Datasheet, PDF (66/150 Pages) Intel Corporation – Intelligent Eight-Channel Communications Controller

CD1865 — Intelligent Eight-Channel Communications Controller
still has to expire so that some time passes before the No New Data Service Request occurs.
Likewise, if the last service request was triggered by some other error, such as parity, the timer still
has to expire so that some time passes before the No New Data Service Request occurs.
The No New Data function should not be confused with the time-out that occurs when there is
Good Data in the FIFO but the threshold has not been reached and the timer expires. This event is a
Receive Good Data Service Request, and not a Receive Exception event. Timing-out to transfer
Good Data before it becomes ‘stale’ is standard, and it cannot be turned off by the user.
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Datasheet