Altera Avalon Verification IP Suite Manual de usuario Pagina 60

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Chapter 3: Avalon-MM Slave BFM 3–17
Application Program Interface
May 2011 Altera Corporation Avalon Verification IP Suite User Guide
signal_command_received
signal_error_exceed_max_pending_reads
signal_max_response_queue_size
signal_min_command_queue_size
signal_fatal_error
Prototype:
signal_command_received
.
Arguments: None.
Returns:
void
.
Description: Notifies the testbench that a command has been detected on an Avalon-MM port. The
testbench can respond with a
set_command_wait_time
call on receiving this event to
dynamically back pressure the driving Avalon-MM master. Alternatively, the previously
set
wait_time
might be used continuously for a set of transactions.
Prototype:
signal_error_exceed_max_pending_reads
.
Arguments: None.
Returns:
void
.
Description: Notifies the testbench of the error condition, in which the slave has more than
max_pending_reads
pipelined read commands queued and waiting to be processed.
Prototype:
signal_max_response_queue_size.
Arguments: None.
Returns:
void
.
Description: Signals that the maximum pending transaction queue size threshold has been exceeded.
Prototype:
signal_min_response_queue_size.
Arguments: None.
Returns:
void
.
Description: Signals that the pending transaction queue size is below the minimum threshold.
Prototype:
signal_fatal_error
.
Arguments: None.
Returns:
void
.
Description: Notifies the testbench that a fatal error has occurred in this module.
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