WG82574IT S LBAB Intel, WG82574IT S LBAB Datasheet - Page 174
WG82574IT S LBAB
Manufacturer Part Number
WG82574IT S LBAB
Description
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAB.pdf
(472 pages)
Specifications of WG82574IT S LBAB
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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Figure 37.
174
Interrupt Throttle Flow Diagram
For cases where the 82574 is connected to a small number of clients, it is desirable to
fire off the interrupt as soon as possible with minimum latency. For these cases, when
the EITR counter counts down to zero and no interrupt event has happened, then the
EITR counter is not reset but stays at zero. Thus, the next interrupt event triggers an
interrupt immediately. That scenario is illustrated as Case B as follows.
Yes
No
No
No
Counter = 0
Assert Interrupt
Clear Interrupt
Load counter
Start count
with interval
Yes
Yes
Interrupt
active
Intr ack
down
?
?
?
v
v
Yes
82574 GbE Controller—Inline Functions
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