ram_wren
|
Yes
|
Write enable signal to the RAM.
|
When asserted high, the dataout port
data is valid.
|
dataout[]
|
Yes
|
Data sent to the external RAM.
|
Output port [(width-1)..0] wide.
The value of the dataout port
corresponds to the data at the address specified by the
ram_address
port.
|
ram_address[]
|
Yes
|
RAM address.
|
|
rom_address[]
|
No
|
ROM address that connects to the external
ROM.
|
The rom_address
port is applicable only in the external ROM mode. When the
rom_address port is in
use, connect the rom_address port to the address
input port of the external ROM.
|
rom_rden
|
No
|
Read enable signal that feeds back to the
external ROM.
|
The rom_rden port
is applicable only in the external ROM mode. When asserted, the
altmem_init megafunction generates a valid rom_address
value.
|
init_busy
|
Yes
|
RAM initialization from ROM in progress
indicator.
|
The init_busy
signal remains active throughout the initialization process, and
returns to an inactive state when initialization is complete.
|