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📄 ps2_keyboard.bdf

📁 详细介绍了基于verilog设计uart的原理
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	)
	(parameter
		"m1_tx_reset_timer"
		"12"
		""
	)
	(parameter
		"m1_tx_wait_clk_h"
		"2"
		""
	)
	(parameter
		"m1_tx_clk_h"
		"4"
		""
	)
	(parameter
		"m1_tx_clk_l"
		"5"
		""
	)
	(parameter
		"m1_tx_wait_keyboard_ack"
		"6"
		""
	)
	(parameter
		"m1_tx_done_recovery"
		"7"
		""
	)
	(parameter
		"m1_tx_error_no_keyboard_ack"
		"8"
		""
	)
	(parameter
		"m1_tx_rising_edge_marker"
		"9"
		""
	)
	(parameter
		"m2_rx_data_ready"
		"1"
		""
	)
	(parameter
		"m2_rx_data_ready_ack"
		"0"
		""
	)
	(drawing
		(rectangle (rect 16 16 232 208)(line_width 1))
	)
	(annotation_block (parameter)(rect 736 -272 928 56))
)
(symbol
	(rect 512 336 696 464)
	(text "uart_if" (rect 5 0 36 12)(font "Arial" ))
	(text "inst3" (rect 8 112 31 124)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 21 27 35 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "rst_n" (rect 0 0 24 12)(font "Arial" ))
		(text "rst_n" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "rxd" (rect 0 0 15 12)(font "Arial" ))
		(text "rxd" (rect 21 59 36 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 80)
		(input)
		(text "data_in[7..0]" (rect 0 0 61 12)(font "Arial" ))
		(text "data_in[7..0]" (rect 21 75 82 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 3))
	)
	(port
		(pt 184 32)
		(output)
		(text "txd" (rect 0 0 15 12)(font "Arial" ))
		(text "txd" (rect 148 27 163 39)(font "Arial" ))
		(line (pt 184 32)(pt 168 32)(line_width 1))
	)
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	)
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		(rectangle (rect 16 16 168 112)(line_width 1))
	)
)
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	(rect 200 336 328 432)
	(text "div_4" (rect 5 0 32 12)(font "Arial" ))
	(text "inst2" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk50m" (rect 0 0 35 12)(font "Arial" ))
		(text "clk50m" (rect 21 27 56 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 128 32)
		(output)
		(text "clk1_8m" (rect 0 0 41 12)(font "Arial" ))
		(text "clk1_8m" (rect 66 27 107 39)(font "Arial" ))
		(line (pt 128 32)(pt 112 32)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 112 80)(line_width 1))
	)
)
(symbol
	(rect 504 496 704 592)
	(text "data_buf" (rect 5 0 48 12)(font "Arial" ))
	(text "inst4" (rect 8 80 31 92)(font "Arial" ))
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		(text "data_in[7..0]" (rect 21 27 82 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 3))
	)
	(port
		(pt 0 48)
		(input)
		(text "clk1_8m" (rect 0 0 41 12)(font "Arial" ))
		(text "clk1_8m" (rect 21 43 62 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
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		(line (pt 0 64)(pt 16 64)(line_width 1))
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		(pt 200 32)
		(output)
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		(text "data_in_buf[7..0]" (rect 96 27 179 39)(font "Arial" ))
		(line (pt 200 32)(pt 184 32)(line_width 3))
	)
	(drawing
		(rectangle (rect 16 16 184 80)(line_width 1))
	)
)
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	(pt 336 -32)
)
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	(pt 336 80)
)
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	(pt 464 -32)
	(pt 488 -32)
)
(connector
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	(pt 488 88)
)
(connector
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	(pt 304 112)
)
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	(pt 304 120)
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)
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	(pt 744 528)
	(bus)
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(connector
	(pt 744 528)
	(pt 704 528)
	(bus)
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(connector
	(text "clk1_8m" (rect 338 352 379 364)(font "Arial" ))
	(pt 328 368)
	(pt 512 368)
)
(connector
	(text "clk1_8m" (rect 418 528 459 540)(font "Arial" ))
	(pt 504 544)
	(pt 408 544)
)
(connector
	(pt 352 -16)
	(pt 368 -16)
)
(connector
	(pt 424 96)
	(pt 424 104)
)
(connector
	(pt 352 96)
	(pt 424 96)
)
(connector
	(pt 424 104)
	(pt 488 104)
)
(connector
	(text "reset" (rect 202 80 226 92)(font "Arial" ))
	(pt 192 96)
	(pt 352 96)
)
(connector
	(pt 352 -16)
	(pt 352 96)
)
(connector
	(pt 752 272)
	(pt 432 272)
)
(connector
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	(pt 512 384)
)
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	(pt 432 560)
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	(pt 504 560)
)
(connector
	(pt 736 136)
	(pt 752 136)
)
(connector
	(pt 752 136)
	(pt 752 272)
)
(junction (pt 352 96))
(junction (pt 768 184))
(junction (pt 240 80))
(junction (pt 432 384))

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