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Entity work.vdu8

Synthesizable Colour Video Display Unit for System09

Defined in VHDL/vdu8.vhd

Authors: Bert Cuzeau and John E. Kent
Version: 0.4 from 2010-07-03

Architectures

RTL

Instantiated in...

work.my_system09 (rtl)

Libraries and global use clauses

library IEEE
use IEEE.numeric_std.all
use IEEE.std_logic_1164.all

Generics

VGA_CLK_FREQ	integer	:= 25000000
VGA_HOR_CHARS	integer	:= 80
VGA_HOR_CHAR_PIXELS	integer	:= 8
VGA_HOR_FRONT_PORCH	integer	:= 16
VGA_HOR_SYNC	integer	:= 96
VGA_HOR_BACK_PORCH	integer	:= 48
VGA_VER_CHARS	integer	:= 25
VGA_VER_CHAR_LINES	integer	:= 16
VGA_VER_FRONT_PORCH	integer	:= 10
VGA_VER_SYNC	integer	:= 2
VGA_VER_BACK_PORCH	integer	:= 34

Ports

vdu_clk	in	std_logic
	control register interface
vdu_rst	in	std_logic
	control register interface
vdu_cs	in	std_logic
	control register interface
vdu_rw	in	std_logic
	control register interface
vdu_addr	in	std_logic_vector(2 downto 0)
	control register interface
vdu_data_in	in	std_logic_vector(7 downto 0)
	control register interface
vdu_data_out	out	std_logic_vector(7 downto 0)
	control register interface
vga_clk	in	std_logic
	vga port connections
vga_red_o	out	std_logic
	vga port connections
vga_green_o	out	std_logic
	vga port connections
vga_blue_o	out	std_logic
	vga port connections
vga_hsync_o	out	std_logic
	vga port connections
vga_vsync_o	out	std_logic
	vga port connections

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