Another question on OpenCore's I2C Controller Core code

[daisyzari]

constant CMD_NOP : std_logic_vector(2 downto 0) := "000";
constant CMD_START : std_logic_vector(2 downto 0) := "010";
constant CMD_STOP : std_logic_vector(2 downto 0) := "011";
constant CMD_READ : std_logic_vector(2 downto 0) := "100";
constant CMD_WRITE : std_logic_vector(2 downto 0) := "101";

I just wanted to ask what NOP means in the code above..

Thanks

 

[FvM]

It's used in the internal representation of commands to the core and simply means nothing to do.

 

[TrickyDicky]

Usually standing for NO OPERATION

 

[daisyzari]

Thank you!