From c1ddd006341304f5c1a64145e64d37c728570b09 Mon Sep 17 00:00:00 2001
From: yannickreiss <yannick.reiss@protonmail.ch>
Date: Wed, 31 Jan 2024 13:12:34 +0100
Subject: [PATCH] Add I2C Entity

---
 src/I2C.vhd   | 26 ++++++++++++++++++++++++++
 src/cpu16.vhd | 12 ++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 src/I2C.vhd

diff --git a/src/I2C.vhd b/src/I2C.vhd
new file mode 100644
index 0000000..c17ac40
--- /dev/null
+++ b/src/I2C.vhd
@@ -0,0 +1,26 @@
+-- I2C.vhd
+-- Date:   Wed Jan 31 13:05:40 2024
+-- Author:    Yannick Reiß
+-- E-Mail:    schnick@nickr.eu
+library IEEE;
+use IEEE.std_logic_1164.all;
+use IEEE.numeric_std.all;
+
+entity I2C is
+  port (
+    Clk     : in  std_logic;
+    SDA_In  : in  std_logic;
+    SDL_In  : in  std_logic;
+    ClientR : in  std_logic_vector(15 downto 0);
+    ServerR : in  std_logic_vector(15 downto 0);
+    SDA_Out : out std_logic;
+    SDL_Out : out std_logic;
+    ClientW : out std_logic_vector(15 downto 0)
+    );
+end I2C;
+
+architecture Implementation of I2C is
+
+begin
+
+end Implementation;
diff --git a/src/cpu16.vhd b/src/cpu16.vhd
index d1d0faa..b2380cb 100644
--- a/src/cpu16.vhd
+++ b/src/cpu16.vhd
@@ -117,6 +117,18 @@ begin
       Addr     => InstructionCounter
       );
 
+  I2C_Adapter : entity work.I2C(Implementation)
+    port map(
+      Clk     => Clk,
+      SDA_In  => SDA,
+      SDL_In  => SDL,
+      ClientR => I2CClient,
+      ServerR => I2CServer,
+      SDA_Out => SDA,
+      SDL_Out => SDA,
+      ClientW => I2CClient
+      );
+
   AluSetInput : process(ImmediateValue, InstructionCounter, RegisterDataOut1,
                         RegisterDataOut2)
   begin