Altera Quartus II Settings File - Manual (Page 453)

BLOCK_RAM_AND_MLAB_EQUIVALENT_POWER_UP_CONDITIONS
Controls whether RAMs implemented in MLAB cells must have equivalent power up conditions as RAMs
implemented in block RAM. Power up conditions occur when the device is powered up or globally reset.
Allowing non-equivalent power up conditions will provide the fitter more flexibility in implementing
RAMs using MLAB cells. If this option is set to 'Auto', the Fitter may convert RAMs to MLAB cells even if
they won't have equivalent power up conditions to a block RAM implementation. The Fitter will also
output a warning message notifying the user of RAMs with non-equivalent power up conditions. If this
option is set to 'Don't Care', the same behavior as 'Auto' applies, but the warning message will instead be
an information message. If this option is set to 'Care', the Fitter will not convert RAMs to MLAB cells
unless they have equivalent power up conditions to a block RAM implementation. To allow the fitter the
most flexibility in deciding which RAMs are implemented using MLAB cells, set this option to 'Auto' or
'Don't Care'.
Type
Enumeration
Values
• Auto
• Care
• Dont Care
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name
BLOCK_RAM_AND_MLAB_EQUIVALENT_POWER_UP_CONDITIONS
set_global_assignment -name
BLOCK_RAM_AND_MLAB_EQUIVALENT_POWER_UP_CONDITIONS -entity
set_instance_assignment -name
BLOCK_RAM_AND_MLAB_EQUIVALENT_POWER_UP_CONDITIONS -to -entity
Default Value
Auto
MNL-Q21005
2015.05.04
BLOCK_RAM_AND_MLAB_EQUIVALENT_POWER_UP_CONDITIONS 453
Quartus Settings File Reference Manual Altera Corporation
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