//processador01.sv
// Processador, primeiros passos!

module processador01( 
	////////////////////////	Clock Input	 	////////////////////////
	input			CLOCK_27,				//	27 MHz
	input			CLOCK_50,				//	50 MHz
	input			EXT_CLOCK,				//	External Clock
	////////////////////////	Push Button		////////////////////////
	input	[3:0]	KEY,					//	Pushbutton[3:0]
	////////////////////////	DPDT Switch		////////////////////////
	input	[17:0]	SW,						//	Toggle Switch[17:0]
	////////////////////////	7-SEG Dispaly	////////////////////////
	output	[6:0]	HEX0,					//	Seven Segment Digit 0
	output	[6:0]	HEX1,					//	Seven Segment Digit 1
	output	[6:0]	HEX2,					//	Seven Segment Digit 2
	output	[6:0]	HEX3,					//	Seven Segment Digit 3
	output	[6:0]	HEX4,					//	Seven Segment Digit 4
	output	[6:0]	HEX5,					//	Seven Segment Digit 5
	output	[6:0]	HEX6,					//	Seven Segment Digit 6
	output	[6:0]	HEX7,					//	Seven Segment Digit 7
	////////////////////////////	LED		////////////////////////////
	output	[8:0]	LEDG,					//	LED Green[8:0]
	output	[17:0]	LEDR,					//	LED Red[17:0]
	////////////////////	LCD Module 16X2	////////////////////////////
	inout	[7:0]	LCD_DATA,				//	LCD Data bus 8 bits
	output			LCD_ON,					//	LCD Power ON/OFF
	output			LCD_BLON,				//	LCD Back Light ON/OFF
	output			LCD_RW,					//	LCD Read/Write Select, 0 = Write, 1 = Read
	output			LCD_EN,					//	LCD Enable
	output			LCD_RS					//	LCD Command/Data Select, 0 = Command, 1 = Data
); //	module pins


assign	LEDG[3:0]	=	~KEY[3:0]; // 03 m.s. Btn set to 03 m.s.leds
assign	LEDR[17:0]	=	SW[17:0]; // Switch to LED red

// negative logic -> 0="active" (on)
bit ON = 0;
bit OFF = 1;

// Last Significative Display (HEX0)
// on the right!
assign HEX0[0]= ON;   // ---0----
assign HEX0[1]=OFF;   // 5      1
assign HEX0[2]=OFF;   // |	|
assign HEX0[3]= ON;   // ---6----
assign HEX0[4]= ON;   // 4      2  
assign HEX0[5]= ON;   // |	|
assign HEX0[6]=OFF;   // ---3----

assign HEX1=7'b0001000; // 6564321 > lsb on the right!
assign HEX2=7'b1000000; //         
assign HEX3=7'b1000111; // 


assign HEX4=7'b1111111; // not used -> 1 (off)
assign HEX5=7'b1111111; 
assign HEX6=7'b1111111; 
assign HEX7=7'b1111111; 


endmodule : processador01