Parameters
Parameter |
Type |
Required |
Comments |
---|---|---|---|
INIT_FILE |
String |
No |
Specifies the initialization file name. If the
|
INIT_TO_ZERO |
String |
No |
Specifies whether the RAM must be initialized
to contain all 0s. Values are |
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 megafunction 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 |
PORT_ROM_DATA_READY |
String |
No |
Specifies whether the |