lpm_rom Megafunction

Parameterized ROM megafunction.

Important: Important: Intel recommends using the altsyncram megafunction instead of the lpm_rom megafunction. This megafunction is provided only for backward compatibility. This option is available for all Intel devices except MAX3000 and MAX7000 devices.
Note:
  • You can use the lpm_rom megafunction to read data from and write data to in-system memory in devices with the In-System Memory Content Editor. To use the lpm_rom megafunction with the In-System Memory Content Editor, you must turn on the Allow In-System Memory Content Editor to capture and update content independently of the system clock option (that is, the ENABLE_RUNTIME_MOD and INSTANCE_NAME parameters must be enabled) when instantiating the lpm_ram_dq megafunction with the IP Catalog.
  • You can use the Assignment Editor to add, change, or delete assignments and assignment values for megafunctions.
  • When you create your megafunction, you can use the IP Catalog to generate a netlist for third-party synthesis tools.
Note: More information is available on the lpm_rom megafunction on the Altera website.