Parameters
| Parameter | Type | Required | Comments |
|---|---|---|---|
| INIT_FILE | String | No | Specifies the initialization file name. If the INIT_FILE parameter is specified, the INIT_TO_ZERO parameter value is overridden and initialization from internal ROM is performed. If the INIT_FILE and INIT_TO_ZERO parameter values are not specified, initialization from an external ROM address is performed; you must connect the appropriate ports when initialization is from an external ROM address. |
| INIT_TO_ZERO | String | No | Specifies whether the RAM must be initialized to contain all 0s. Values are "YES" and "NO". If omitted, the default is "NO". The INIT_FILE parameter value takes precedence over the INIT_TO_ZERO value setting. |
| NUMWORDS | Integer | Yes | Specifies the number of words stored in the ROM and the RAM memory. |
| WIDTHAD | Integer | Yes | Width of the ROM and the RAM. |
| WIDTH | Integer | Yes | Data width of the ROM and the RAM. |
| ROM_READ_LATENCY | Integer | No | Specifies the number of cycles to wait after the altmem_init Intel® FPGA IP sends a read address to the ROM to initialize a read. The value of the ROM_READ_LATENCY parameter must reflect the latency in clock cycles induced by the registers in the external ROM. For example, if the ROM has both its input and output ports registered, set the ROM_READ_LATENCY parameter value to 2. This parameter is valid only in the external ROM mode. |
| PORT_ROM_DATA_READY | String | No | Specifies whether the rom_data_ready port is used. Values are "PORT_USED" and "PORT_UNUSED". If omitted, the default is "PORT_UNUSED". When the altmem_init Intel® FPGA IP is in external ROM mode, and the rom_data_ready input port is used, set the PORT_ROM_DATA_READY parameter value to "PORT_USED". |