Width of irq_level_i is 3.

2f426d19 · Tristan Gingold · b98546ca · 2f426d19 · 2f426d19 · 2f426d19
Commit 2f426d19 authored Nov 30, 2017 by Tristan Gingold
5 changed files
--- a/hdl/rtl/vme64x_core.vhd
+++ b/hdl/rtl/vme64x_core.vhd
@@ -93,7 +93,7 @@ entity vme64x_core is
    wb_we_o         : out std_logic;
    wb_dat_o        : out t_wishbone_data;
    irq_ack_o       : out std_logic;
-    irq_level_i     : std_logic_vector(7 downto 0);
+    irq_level_i     : std_logic_vector(2 downto 0);
    irq_vector_i    : std_logic_vector(7 downto 0);
    user_csr_addr_o : out std_logic_vector(18 downto 2);
    user_csr_data_i : std_logic_vector(7 downto 0);

--- a/hdl/rtl/vme64x_pkg.vhd
+++ b/hdl/rtl/vme64x_pkg.vhd
@@ -222,7 +222,7 @@ package vme64x_pkg is

      irq_ack_o       : out std_logic;

-      irq_level_i     : in  std_logic_vector( 7 downto 0) := (others => '0');
+      irq_level_i     : in  std_logic_vector( 2 downto 0) := (others => '0');
      irq_vector_i    : in  std_logic_vector( 7 downto 0) := (others => '0');
      user_csr_addr_o : out std_logic_vector(18 downto 2);
      user_csr_data_i : in  std_logic_vector( 7 downto 0) := (others => '0');

--- a/hdl/rtl/vme_bus.vhd
+++ b/hdl/rtl/vme_bus.vhd
--- a/hdl/rtl/xvme64x_core.vhd
+++ b/hdl/rtl/xvme64x_core.vhd
@@ -34,14 +34,6 @@
 --     |     |________________| |________| |___________________| |
 --     |_________________________________________________________|
 --
--   This core complies with the VME64x specifications and allows "plug and
--   play" configuration of VME crates.
--   The base address is setted by the Geographical lines.
--   The base address can't be setted by hand with the switches on the board.
--   If the core is used in an old VME system without GA lines, the core should
--   be provided with a logic that detects if GA = "11111" and if it is the base
--   address of the module, this logic should derive the GA from the switches on
--   the board.
 --   All the VMEbus's asynchronous signals must be sampled 2 or 3 times to avoid
 --   metastability problem.
 --   All the output signals on the WB bus are registered.
@@ -181,7 +173,7 @@ entity xvme64x_core is
    -- User CSR
    -- The following signals are used when g_USER_CSR_EXT = true
    -- otherwise they are connected to the internal user CSR.
-    irq_level_i     : in  std_logic_vector( 7 downto 0) := (others => '0');
+    irq_level_i     : in  std_logic_vector( 2 downto 0) := (others => '0');
    irq_vector_i    : in  std_logic_vector( 7 downto 0) := (others => '0');
    user_csr_addr_o : out std_logic_vector(18 downto 2);
    user_csr_data_i : in  std_logic_vector( 7 downto 0) := (others => '0');
@@ -446,7 +438,7 @@ begin
    )
    port map (
      clk_i           => clk_i,
-      rst_n_i         => s_reset_n,                 -- asserted when low
+      rst_n_i         => s_reset_n,
      INT_Level_i     => s_irq_level,
      INT_Req_i       => wb_i.int,
      irq_pending_o   => s_irq_pending,

--- a/hdl/testbench/simple_tb/top_tb.vhd
+++ b/hdl/testbench/simple_tb/top_tb.vhd
@@ -237,7 +237,7 @@ architecture behaviour of top_tb is
  signal WE_o            : std_logic;
  signal STALL_i         : std_logic;
  signal rty_i           : std_logic := '0';
-  signal irq_level_i     : std_logic_vector(7 downto 0)  := (others => '0');
+  signal irq_level_i     : std_logic_vector(2 downto 0)  := (others => '0');
  signal irq_vector_i    : std_logic_vector(7 downto 0)  := (others => '0');
  signal user_csr_addr_o : std_logic_vector(18 downto 2);
  signal user_csr_data_i : std_logic_vector(7 downto 0)  := (others => '0');