生成一个SPI配置16位地址，8位数据的vhdl代码

在VHDL中，生成一个支持SPI (Serial Peripheral Interface) 的16位地址、8位数据传输的配置通常涉及到硬件描述语言的基本结构，包括信号声明、过程定义以及实体与架构的结合。以下是一个简化的示例，展示了如何创建这样的接口：

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity SPI_Config is
    Port (
        -- Master Control Signals
        SCK : out STD_LOGIC;      -- Clock signal
        MOSI : out STD_LOGIC;     -- Master Output / Slave Input
        MISO : in STD_LOGIC;      -- Master Input / Slave Output
        SS_n : out STD_LOGIC;     -- Chip Select active low
        
        -- Address and Data Inputs/Outputs
        Address : in std_logic_vector(15 downto 0); -- 16-bit address
        DataIn : in std_logic_vector(7 downto 0);   -- 8-bit data input
        DataOut : out std_logic_vector(7 downto 0)  -- 8-bit data output
    );
end SPI_Config;

architecture Behavioral of SPI_Config is
begin
    -- SPI Transactions
    process(SCK, SS_n)
    begin
        if rising_edge(SCK) and SS_n = '0' then
            case Address(15 downto 0) is
                when "00000000" => DataOut <= DataIn;   -- Write operation
                when others =>
                    DataIn <= DataOut;              -- Read operation
            end case;
        end if;
    end process;
    
    -- Add other SPI protocol handling logic here (CS management, framing, etc.)
end Behavioral;

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