Revision 1470
Added by markw 7 months ago
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signal SIO_TXD : std_logic;
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signal SIO_RXD : std_logic;
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signal SIO_RXD_SYNC : std_logic;
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signal SIO_RXD_ADC : std_logic;
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signal POKEY_IRQ : std_logic_vector(3 downto 0);
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| ... | ... | |
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KEYBOARD_RESPONSE <= IOX_KEYBOARD_RESPONSE;
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end generate ps2_off;
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synchronizer_SIO : entity work.synchronizer
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port map (clk=>CLK49152, raw=>SID, sync=>SIO_RXD_ADC);
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adc_on : if enable_adc=1 generate
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-- Proper ADC for SIO/PBI audio in
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| ... | ... | |
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end process;
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process(SIO_RXD_SYNC,SIO_DATA_VOLUME_REG)
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process(SIO_RXD_ADC,SIO_DATA_VOLUME_REG)
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begin
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sio_noise <= (others=>'0');
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case SIO_DATA_VOLUME_REG is
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when "01" =>
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sio_noise(10) <= not(SIO_RXD_SYNC);
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sio_noise(10) <= not(SIO_RXD_ADC);
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when "10" =>
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sio_noise(11) <= not(SIO_RXD_SYNC);
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sio_noise(11) <= not(SIO_RXD_ADC);
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when "11" =>
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sio_noise(12) <= not(SIO_RXD_SYNC);
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sio_noise(12) <= not(SIO_RXD_ADC);
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when others =>
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end case;
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end process;
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| ... | ... | |
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case SIO_DATA_VOLUME_REG is
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when "01" =>
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SIO_AUDIO(10) <= SIO_RXD_SYNC;
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SIO_AUDIO(10) <= SIO_RXD_ADC;
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when "10" =>
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SIO_AUDIO(11) <= SIO_RXD_SYNC;
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SIO_AUDIO(11) <= SIO_RXD_ADC;
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when "11" =>
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SIO_AUDIO(12) <= SIO_RXD_SYNC;
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SIO_AUDIO(12) <= SIO_RXD_ADC;
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when others =>
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end case;
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end process;
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| ... | ... | |
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SOD <= '0' when SIO_TXD='0' else 'Z';
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SIO_RXD <= SID;
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synchronizer_SIO : entity work.synchronizer
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port map (clk=>clk, raw=>SID, sync=>SIO_RXD_SYNC);
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--1->pin37
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Also available in: Unified diff
Incorrect clock for sio data mixing