Suspend
Formal Definition
Suspend is a process that stops
executing and waits either for an event or for a time period to elapse.
Description
When a wait statement is
encountered in a process, the process becomes suspended, i.e. it
stops its execution until the condition supported by the wait
statement is met. Depending upon the type of a wait
statement there can be several conditions for resuming (continuing
execution of) a suspended process:
-
timeout specified has expired (wait
for statement)
-
a logical condition is met (wait until statement)
-
an event on a signal took place (wait
on statement)
See wait statement for details.
Examples
Example 1
wait until CLK'event and CLK='0';
A process containing such a wait
statement will be suspended until a falling edge on the CLK signal
will be encountered.
Important Notes
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