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uart.vhd
87 lines | 2.6 KiB | text/x-vhdl | VhdlLexer
------------------------------------------------------------------------------
-- This file is a part of the GRLIB VHDL IP LIBRARY
-- Copyright (C) 2003 - 2008, Gaisler Research
-- Copyright (C) 2008 - 2010, Aeroflex Gaisler
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-----------------------------------------------------------------------------
-- package: uart
-- File: uart.vhd
-- Author: Jiri Gaisler - Gaisler Research
-- Description: UART types and components
------------------------------------------------------------------------------
library ieee;
use ieee.std_logic_1164.all;
library grlib;
use grlib.amba.all;
package uart is
type uart_in_type is record
rxd : std_ulogic;
ctsn : std_ulogic;
extclk : std_ulogic;
end record;
type uart_out_type is record
rtsn : std_ulogic;
txd : std_ulogic;
scaler : std_logic_vector(31 downto 0);
txen : std_ulogic;
flow : std_ulogic;
rxen : std_ulogic;
end record;
component apbuart
generic (
pindex : integer := 0;
paddr : integer := 0;
pmask : integer := 16#fff#;
console : integer := 0;
pirq : integer := 0;
parity : integer := 1;
flow : integer := 1;
fifosize : integer range 1 to 32 := 1;
abits : integer := 8;
sbits : integer range 12 to 32 := 12);
port (
rst : in std_ulogic;
clk : in std_ulogic;
apbi : in apb_slv_in_type;
apbo : out apb_slv_out_type;
uarti : in uart_in_type;
uarto : out uart_out_type);
end component;
component ahbuart
generic (
hindex : integer := 0;
pindex : integer := 0;
paddr : integer := 0;
pmask : integer := 16#fff#
);
port (
rst : in std_ulogic;
clk : in std_ulogic;
uarti : in uart_in_type;
uarto : out uart_out_type;
apbi : in apb_slv_in_type;
apbo : out apb_slv_out_type;
ahbi : in ahb_mst_in_type;
ahbo : out ahb_mst_out_type);
end component;
end;