Altera Quartus II Settings File - Manual (Page 624)

M144K_BLOCK_READ_CLOCK_DUTY_CYCLE_DEPENDENCY
Allows you to specify whether the M144K memory block read operations depend upon the read clock's
duty cycle. When M144K memory blocks are driven by a read clock with a very narrow pulse, they can go
into a locked, inactive state. Turning on this option allows the M144K memory blocks to operate
dependent upon the read clock's duty cycle to prevent the memory blocks from going into to an inactive
state; however, turning on this option may degrade the performance of the M144K blocks.
Type
Enumeration
Values
• Off
• On
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 M144K_BLOCK_READ_CLOCK_DUTY_CYCLE_DEPENDENCY -
entity <entity name> <value>
set_instance_assignment -name M144K_BLOCK_READ_CLOCK_DUTY_CYCLE_DEPENDENCY -
to <to> -entity <entity name> <value>
set_global_assignment -name M144K_BLOCK_READ_CLOCK_DUTY_CYCLE_DEPENDENCY
<value>
Default Value
Off
624 M144K_BLOCK_READ_CLOCK_DUTY_CYCLE_DEPENDENCY
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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