types.vhd

来自「cpld」· VHDL 代码 · 共 12 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL; 


PACKAGE TYPES IS 
 
SUBTYPE KEY_DATA IS STD_LOGIC_VECTOR(8 DOWNTO 0 );
SUBTYPE BITS_8 IS STD_LOGIC_VECTOR( 7 DOWNTO 0) ;

SUBTYPE LCD_CMD IS STD_LOGIC_VECTOR(9 DOWNTO 0 );

END TYPES;