Revision 126
Added by markw about 11 years ago
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-- Multi purpose FPGA expansion for the Commodore 64 computer
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--
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-- -----------------------------------------------------------------------
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-- Copyright 2005-2010 by Peter Wendrich (pwsoft@syntiac.com)
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-- Copyright 2005-2012 by Peter Wendrich (pwsoft@syntiac.com)
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-- http://www.syntiac.com/chameleon.html
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-- -----------------------------------------------------------------------
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--
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| ... | ... | |
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entity chameleon_phi_clock is
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port (
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clk : in std_logic;
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phiIn : in std_logic;
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phi2_n : in std_logic;
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-- Standalone mode, 0=PAL and 1=NTSC
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mode : in std_logic := '0';
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-- Buffered phiIn (delayed)
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phiBuffer : out std_logic;
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-- Buffered and inverted phi_n (delayed)
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phiLength : out unsigned(7 downto 0);
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-- no_clock is high when there are no phiIn changes detected.
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Switched to using Peters chameleon_io module. Great, gives c64 joystick and cdtv support!