lpm_ram_io Megafunction

Parameterized RAM with a single I/O port megafunction. This megafunction is provided only for backward compatibility; instead, Altera recommends using the altsyncram megafunction. The lpm_ram_io function uses Embedded System Blocks (ESBs) in some obsoleted devices, Embedded Array Blocks (EABs) in other obsoleted devices, or DFFE primitives or latch arrays in MAX3000 and MAX7000 devices or if the USE_EAB parameter set to "OFF". Altera strongly recommends using synchronous rather than asynchronous RAM functions.

Note:
  • The Compiler automatically implements this function in logic cells in MAX3000 and MAX7000 devices.
  • You can use the Assignment Editor to add, change, or delete assignments and assignment values for megafunctions.
Note: More information is available on the lpm_ram_io megafunction on the Altera website.
Related reference

altsyncram Megafunction
DFFE Primitive
Related information

Assignment Editor

Contact Altera | Legal Notice

Copyright© 2015 Altera Corporation. All rights reserved. ALTERA, ARRIA, CYCLONE, HARDCOPY, MAX, MEGACORE, NIOS, QUARTUS, STRATIX, and all other brands, unless noted otherwise, and/or trademarks of Altera Corporation in the U.S. and other countries.