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-------------------------------------------------------------------
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--!
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--! PDP-8 Processor
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--!
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--! \brief
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--! DK8E Real Time Clock Type Definitions
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--!
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--! \details
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--! This package defines some type information that is
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--! required to use the DK8E Real Time Clock device.
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--!
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--! \file
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--! dk8e_types.vhd
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--!
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--! \author
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--! Rob Doyle - doyle (at) cox (dot) net
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--!
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--------------------------------------------------------------------
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--
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-- Copyright (C) 2012 Rob Doyle
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--
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-- This source file may be used and distributed without
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-- restriction provided that this copyright statement is not
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-- removed from the file and that any derivative work contains
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-- the original copyright notice and the associated disclaimer.
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--
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-- This source file is free software; you can redistribute it
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-- and/or modify it under the terms of the GNU Lesser General
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-- Public License as published by the Free Software Foundation;
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-- version 2.1 of the License.
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--
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-- This source is distributed in the hope that it will be
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-- useful, but WITHOUT ANY WARRANTY; without even the implied
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-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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-- PURPOSE. See the GNU Lesser General Public License for more
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-- details.
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--
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-- You should have received a copy of the GNU Lesser General
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-- Public License along with this source; if not, download it
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-- from http://www.gnu.org/licenses/lgpl.txt
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--
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--------------------------------------------------------------------
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--
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-- Comments are formatted for doxygen
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--
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library ieee; --! IEEE Library
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use ieee.std_logic_1164.all; --! IEEE 1164
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use work.dev_types.all; --! Dev Types
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--
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--! DK8E Real Time Clock Device Type Package
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--
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package dk8e_types is
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--!
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--! Types
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--!
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subtype swRTC_t is std_logic_vector(0 to 2); --! RTC configuration type
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subtype schmitt_t is std_logic_vector(0 to 2); --! Schmitt Trigger Inputs type
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--!
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--! Real Time Device Number
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--!
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constant rtcdevNUM : devNUM_t := o"13"; --! 613x
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--!
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--! Real Time Clock IOTs DK8-EA/DK8-EC
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--!
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--constant opCLEI : devOP_t := o"1"; --! Enable Interrupt
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--constant opCLDI : devOP_t := o"1"; --! Disable Interrupt
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--constant opCLSK : devOP_t := o"3"; --! Skip on Clock Flag
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--!
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--! Real Time Clock IOTs DK8-EP
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--!
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constant opCLZE : devOP_t := o"0"; --! Clear Clock Enable Register
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constant opCLSK : devOP_t := o"1"; --! Skip on Clock Interrupt
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constant opCLDE : devOP_t := o"2"; --! Set Clock Enable Register
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constant opCLAB : devOP_t := o"3"; --! AC to Clock Buffer
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constant opCLEN : devOP_t := o"4"; --! Load Clock Enable Register
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constant opCLSA : devOP_t := o"5"; --! Clock Status to AC
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constant opCLBA : devOP_t := o"6"; --! Clock Buffer to AC
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constant opCLCA : devOP_t := o"7"; --! Clock Counter to AC
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--!
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--! Real Time Clock Configuation
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--!
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constant clkDK8EA1 : swRTC_t := "000"; --! DK8-EA, 100Hz (50Hz Power)
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constant clkDK8EA2 : swRTC_t := "001"; --! DK8-EA, 120Hz (60Hz Power)
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constant clkDK8EC1 : swRTC_t := "010"; --! DK8-EC, 1 Hz
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constant clkDK8EC2 : swRTC_t := "011"; --! DK8-EC, 50 Hz
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constant clkDK8EC3 : swRTC_t := "100"; --! DK8-EC, 500Hz
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constant clkDK8EC4 : swRTC_t := "101"; --! DK8-EC, 5KHz
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constant clkDK8EP : swRTC_t := "110"; --! DK8-EP, VAR
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constant clkDK8ES : swRTC_t := "111"; --! DK8-ES, VAR
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end dk8e_types;
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