keyboard.vwf

程序主要是用硬件描述语言（VHDL）实现： 4*4键盘扫描

/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/

/*
Copyright (C) 1991-2004 Altera Corporation
Any  megafunction  design,  and related netlist (encrypted  or  decrypted),
support information,  device programming or simulation file,  and any other
associated  documentation or information  provided by  Altera  or a partner
under  Altera's   Megafunction   Partnership   Program  may  be  used  only
to program  PLD  devices (but not masked  PLD  devices) from  Altera.   Any
other  use  of such  megafunction  design,  netlist,  support  information,
device programming or simulation file,  or any other  related documentation
or information  is prohibited  for  any  other purpose,  including, but not
limited to  modification,  reverse engineering,  de-compiling, or use  with
any other  silicon devices,  unless such use is  explicitly  licensed under
a separate agreement with  Altera  or a megafunction partner.  Title to the
intellectual property,  including patents,  copyrights,  trademarks,  trade
secrets,  or maskworks,  embodied in any such megafunction design, netlist,
support  information,  device programming or simulation file,  or any other
related documentation or information provided by  Altera  or a megafunction
partner, remains with Altera, the megafunction partner, or their respective
licensors. No other licenses, including any licenses needed under any third
party's intellectual property, are provided herein.
*/

HEADER
{
	VERSION = 1;
	TIME_UNIT = ns;
	SIMULATION_TIME = 1000000.0;
	GRID_PHASE = 0.0;
	GRID_PERIOD = 10.0;
	GRID_DUTY_CYCLE = 50;
}

SIGNAL("KIN")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("KIN[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "KIN";
}

SIGNAL("KIN[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "KIN";
}

SIGNAL("KIN[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "KIN";
}

SIGNAL("KIN[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "KIN";
}

SIGNAL("Num")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("Num[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "Num";
}

SIGNAL("Num[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "Num";
}

SIGNAL("Num[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "Num";
}

SIGNAL("Num[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "Num";
}

SIGNAL("ScanSignal")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("ScanSignal[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "ScanSignal";
}

SIGNAL("ScanSignal[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "ScanSignal";
}

SIGNAL("ScanSignal[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "ScanSignal";
}

SIGNAL("ScanSignal[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "ScanSignal";
}

SIGNAL("enter")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("ci")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("clk")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

TRANSITION_LIST("KIN[3]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 4405.0;
		LEVEL 1 FOR 15420.0;
		LEVEL 0 FOR 1278.893;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 199932.359;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 99932.359;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 20678.466;
		LEVEL 1 FOR 76640.0;
		LEVEL 0 FOR 2613.893;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 70018.466;
		LEVEL 1 FOR 59470.0;
		LEVEL 0 FOR 70443.893;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 99932.359;
		LEVEL 1 FOR 67.641;
		LEVEL 0 FOR 278828.466;
	}
}

TRANSITION_LIST("KIN[2]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 211.694;
		LEVEL 1 FOR 22.777;
		LEVEL 0 FOR 4170.529;
		LEVEL 1 FOR 15420.0;
		LEVEL 0 FOR 80386.694;
		LEVEL 1 FOR 22.777;
		LEVEL 0 FOR 18985.529;
		LEVEL 1 FOR 85160.0;
		LEVEL 0 FOR 95831.694;
		LEVEL 1 FOR 22.777;
		LEVEL 0 FOR 41615.529;
		LEVEL 1 FOR 76640.0;
		LEVEL 0 FOR 181721.694;
		LEVEL 1 FOR 22.777;
		LEVEL 0 FOR 99977.223;
		LEVEL 1 FOR 22.777;
		LEVEL 0 FOR 77300.529;
		LEVEL 1 FOR 158590.0;
		LEVEL 0 FOR 63875.0;
	}
}

TRANSITION_LIST("KIN[1]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 580.018;
		LEVEL 1 FOR 343.277;
		LEVEL 0 FOR 3481.705;
		LEVEL 1 FOR 15420.0;
		LEVEL 0 FOR 80755.018;
		LEVEL 1 FOR 343.277;
		LEVEL 0 FOR 18296.705;
		LEVEL 1 FOR 85160.0;
		LEVEL 0 FOR 96200.018;
		LEVEL 1 FOR 343.277;
		LEVEL 0 FOR 190266.705;
		LEVEL 1 FOR 59470.0;
		LEVEL 0 FOR 49920.018;
		LEVEL 1 FOR 343.277;
		LEVEL 0 FOR 99656.723;
		LEVEL 1 FOR 343.277;
		LEVEL 0 FOR 76611.705;
		LEVEL 1 FOR 158590.0;
		LEVEL 0 FOR 63875.0;
	}
}

TRANSITION_LIST("KIN[0]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 119220.0;
		LEVEL 1 FOR 85160.0;
		LEVEL 0 FOR 137470.0;
		LEVEL 1 FOR 76640.0;
		LEVEL 0 FOR 72700.0;
		LEVEL 1 FOR 59470.0;
		LEVEL 0 FOR 226875.0;
		LEVEL 1 FOR 158590.0;
		LEVEL 0 FOR 63875.0;
	}
}

TRANSITION_LIST("Num[3]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 1000000.0;
	}
}

TRANSITION_LIST("Num[2]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 400015.0;
		LEVEL 1 FOR 599985.0;
	}
}

TRANSITION_LIST("Num[1]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 200005.0;
		LEVEL 1 FOR 200010.0;
		LEVEL 0 FOR 599985.0;
	}
}

TRANSITION_LIST("Num[0]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 200005.0;
		LEVEL 1 FOR 799995.0;
	}
}

TRANSITION_LIST("ScanSignal[3]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 163835.0;
		LEVEL 1 FOR 600030.0;
		LEVEL 0 FOR 200010.0;
		LEVEL 1 FOR 36125.0;
	}
}

TRANSITION_LIST("ScanSignal[2]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 163835.0;
		LEVEL 1 FOR 400020.0;
		LEVEL 0 FOR 200010.0;
		LEVEL 1 FOR 236135.0;
	}
}

TRANSITION_LIST("ScanSignal[1]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 163835.0;
		LEVEL 1 FOR 200010.0;
		LEVEL 0 FOR 200010.0;
		LEVEL 1 FOR 436145.0;
	}
}

TRANSITION_LIST("ScanSignal[0]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 363845.0;
		LEVEL 1 FOR 600030.0;
		LEVEL 0 FOR 36125.0;
	}
}

TRANSITION_LIST("enter")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 200005.0;
		LEVEL 1 FOR 799995.0;
	}
}

TRANSITION_LIST("ci")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 200005.0;
		LEVEL 1 FOR 799995.0;
	}
}

TRANSITION_LIST("clk")
{
	NODE
	{
		REPEAT = 1;
		NODE
		{
			REPEAT = 100000;
			LEVEL 0 FOR 5.0;
			LEVEL 1 FOR 5.0;
		}
	}
}

DISPLAY_LINE
{
	CHANNEL = "clk";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Unsigned;
	TREE_INDEX = 0;
	TREE_LEVEL = 0;
}

DISPLAY_LINE
{
	CHANNEL = "KIN";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 1;
	TREE_LEVEL = 0;
	CHILDREN = 2, 3, 4, 5;
}

DISPLAY_LINE
{
	CHANNEL = "KIN[3]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 2;
	TREE_LEVEL = 1;
	PARENT = 1;
}

DISPLAY_LINE
{
	CHANNEL = "KIN[2]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 3;
	TREE_LEVEL = 1;
	PARENT = 1;
}

DISPLAY_LINE
{
	CHANNEL = "KIN[1]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 4;
	TREE_LEVEL = 1;
	PARENT = 1;
}

DISPLAY_LINE
{
	CHANNEL = "KIN[0]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 5;
	TREE_LEVEL = 1;
	PARENT = 1;
}

DISPLAY_LINE
{
	CHANNEL = "ScanSignal";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 6;
	TREE_LEVEL = 0;
	CHILDREN = 7, 8, 9, 10;
}

DISPLAY_LINE
{
	CHANNEL = "ScanSignal[3]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 7;
	TREE_LEVEL = 1;
	PARENT = 6;
}

DISPLAY_LINE
{
	CHANNEL = "ScanSignal[2]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 8;
	TREE_LEVEL = 1;
	PARENT = 6;
}

DISPLAY_LINE
{
	CHANNEL = "ScanSignal[1]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 9;
	TREE_LEVEL = 1;
	PARENT = 6;
}

DISPLAY_LINE
{
	CHANNEL = "ScanSignal[0]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 10;
	TREE_LEVEL = 1;
	PARENT = 6;
}

DISPLAY_LINE
{
	CHANNEL = "Num";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Unsigned;
	TREE_INDEX = 11;
	TREE_LEVEL = 0;
	CHILDREN = 12, 13, 14, 15;
}

DISPLAY_LINE
{
	CHANNEL = "Num[3]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 12;
	TREE_LEVEL = 1;
	PARENT = 11;
}

DISPLAY_LINE
{
	CHANNEL = "Num[2]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 13;
	TREE_LEVEL = 1;
	PARENT = 11;
}

DISPLAY_LINE
{
	CHANNEL = "Num[1]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 14;
	TREE_LEVEL = 1;
	PARENT = 11;
}

DISPLAY_LINE
{
	CHANNEL = "Num[0]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 15;
	TREE_LEVEL = 1;
	PARENT = 11;
}

DISPLAY_LINE
{
	CHANNEL = "enter";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 16;
	TREE_LEVEL = 0;
}

DISPLAY_LINE
{
	CHANNEL = "ci";
	EXPAND_STATUS = COLLAPSED;
	RADIX = Binary;
	TREE_INDEX = 17;
	TREE_LEVEL = 0;
}

TIME_BAR
{
	TIME = 473400;
	MASTER = TRUE;
}
;