Altera Quartus II Settings File - Manual (Page 737)

SLOW_SLEW_RATE
Implements slow low-to-high/high-to-low transitions on output pins to help reduce switching noise.
When a large number of output pins switch simultaneously, pins that use the Slow Slew Rate option help
reduce switching noise. This option is ignored if it is applied to anything other than an output or
bidirectional pin, or a top-level design entity containing output or bidirectional pins. Note that using this
option increases the delay for output or bidir pins, which can affect slack on Tco paths for the pins this is
applied to.
Type
Boolean
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment supports Fitter wildcards.
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name SLOW_SLEW_RATE -entity <entity name> <value>
set_instance_assignment -name SLOW_SLEW_RATE -to <to> -entity <entity name>
<value>
set_global_assignment -name SLOW_SLEW_RATE <value>
Default Value
Off
MNL-Q21005
2015.05.04
SLOW_SLEW_RATE 737
Quartus Settings File Reference Manual Altera Corporation
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