Hi, i want to use the UFM memory in MAX II ( parallel interface ) like the component declaration:
component data_flash is
port
(
addr : IN STD_LOGIC_VECTOR ( 8 DOWNTO 0);
di : IN STD_LOGIC_VECTOR (15 DOWNTO 0);
nerase : IN STD_LOGIC;
nread : IN STD_LOGIC;
nwrite : IN STD_LOGIC;
data_valid : OUT STD_LOGIC;
do : OUT STD_LOGIC_VECTOR (15 DOWNTO 0);
nbusy : OUT STD_LOGIC
);
end component;
This parallel interface is asynchrounus to my system clock.
It is advisable to use a register chain ( two register to avoid metastability ) for the data_valid and or nbusy signal
to take the outgoing data into my register ?
thank you,
Nicolas
