Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Need help to implement 2D array ROM in vhdl

Hi, I wanna implement 16x16 array. each entry in that 2D array will be of 8 bit. so I wrote this. TYPE SBOX is array (15 downto 0, 15 downto 0) of std_logic_vector(7 downto 0); // is this...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Isnt this 3D memory :

TYPE SBOX is array (15 downto 0, 15 downto 0) of std_logic_vector(7 downto 0); // is this correct?

You are defining a block of 16-bit x 16-bit and 08 of these blocks in 3rd dimension ???

So you will be giving it Row address ( range : 0-to-15) and Block address ( range : 0-to-7)