Parameters

LPM_WIDTH

Integer

Yes

Width of data[], datab[], qa[], and qb[] ports.

LPM_WIDTHAD

Integer

Yes

Width of the addressa[] and addressb[] ports. LPM_WIDTHAD should be (but is not required to be) equal to LOG2(LPM_NUMWORDS). If LPM_WIDTHAD is too small, some memory locations will not be addressable. If it is too large, the addresses that are too high will return undefined (X) logic levels.

LPM_NUMWORDS

Integer

No

Number of words stored in memory. In general, this value should be (but is not required to be) 2 ^ LPM_WIDTHAD-1 < LPM_NUMWORDS <= 2 ^ LPM_WIDTHAD. If omitted, the default is 2 ^ LPM_WIDTHAD.

FILE

String

No

Name of the Memory Initialization File (.mif) Definition or Hexadecimal (Intel-Format) Output File (.hexout) Definition containing RAM initialization data ("<file name>"), or "UNUSED". If omitted, contents default to all 0s. The wea and web port must be registered to support memory initialization.

USE_EAB

String

No

Altera-specific parameter. Values are "ON", "OFF", and "UNUSED". The "ON" setting is not useful in memory functions: the Quartus^® Prime Standard Edition software automatically implements memory functions in ESBs or EABs by default. This parameter is not available for simulation with other EDA simulators.