| Line 92... |
Line 92... |
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constant IO_NONE : std_logic_vector(2-1 downto 0) := "00";
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constant IO_NONE : std_logic_vector(2-1 downto 0) := "00";
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constant IO_READ : std_logic_vector(2-1 downto 0) := "01";
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constant IO_READ : std_logic_vector(2-1 downto 0) := "01";
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constant IO_WRITE : std_logic_vector(2-1 downto 0) := "10";
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constant IO_WRITE : std_logic_vector(2-1 downto 0) := "10";
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constant MAX_IO_COUNT : natural := 2048;
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-- sequencer "instruction" type
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-- sequencer "instruction" type
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type PROG_T is record
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type PROG_T is record
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-- sub-program starting address
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-- sub-program starting address
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SADR : natural range 0 to 65536-1;
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SADR : natural range 0 to 65536-1;
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-- I/O mode selector
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-- I/O mode selector
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IO_MODE : std_logic_vector(2-1 downto 0);
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IO_MODE : std_logic_vector(2-1 downto 0);
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-- number of words to transfer when in read/write mode
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-- number of words to transfer when in read/write mode
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IO_COUNT : natural range 0 to 2048-1;
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IO_COUNT : natural range 0 to MAX_IO_COUNT-1;
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-- I/O address selector
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-- I/O address selector
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IO_ASEL : std_logic_vector(3-1 downto 0);
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IO_ASEL : std_logic_vector(3-1 downto 0);
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-- halt when sub-program ends
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-- halt when sub-program ends
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HALT : std_logic;
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HALT : std_logic;
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end record;
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end record;
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| Line 128... |
Line 130... |
--
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--
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-- Sub-programs "a" and "b" are mutually exclusive: "a" must
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-- Sub-programs "a" and "b" are mutually exclusive: "a" must
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-- be used before encoding/decoding the first packet of a
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-- be used before encoding/decoding the first packet of a
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-- conversation, while "b" must be used on following packets.
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-- conversation, while "b" must be used on following packets.
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constant PROG_SEQ_q : PROG_SEQ_T(0 to 40-1) := (
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constant MAX_PROG : natural := 40;
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|
|
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constant PROG_SEQ_q : PROG_SEQ_T(0 to MAX_PROG-1) := (
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--
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--
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-- "init only" sub-program
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-- "init only" sub-program
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--
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--
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(INIT_DEC,IO_NONE,0,"000",'0'),
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(INIT_DEC,IO_NONE,0,"000",'0'),
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(INIT_COD,IO_NONE,0,"000",'1'),
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(INIT_COD,IO_NONE,0,"000",'1'),
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| Line 213... |
Line 217... |
TS_WAIT5,
|
TS_WAIT5,
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TS_WAIT6
|
TS_WAIT6
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);
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);
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|
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signal TS,TS_q : TEST_STATE_T;
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signal TS,TS_q : TEST_STATE_T;
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signal PROG_CNT_q : natural;
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signal PROG_CNT_q : natural range 0 to MAX_PROG-1;
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signal PROG_FIRST : natural;
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signal PROG_FIRST : natural range 0 to MAX_PROG-1;
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signal PROG_NEXT : std_logic;
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signal PROG_NEXT : std_logic;
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signal PROG_LAST : std_logic;
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signal PROG_LAST : std_logic;
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signal IO_MODE : std_logic_vector(2-1 downto 0);
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signal IO_MODE : std_logic_vector(2-1 downto 0);
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signal IO_COUNT : natural;
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signal IO_COUNT : natural range 0 to MAX_IO_COUNT-1;
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signal IO_ASEL : std_logic_vector(3-1 downto 0);
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signal IO_ASEL : std_logic_vector(3-1 downto 0);
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signal A_STRT,A_STRT_q : std_logic;
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signal A_STRT,A_STRT_q : std_logic;
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signal D_STRT,D_STRT_q : std_logic;
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signal D_STRT,D_STRT_q : std_logic;
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signal BSY,BSY_q : std_logic;
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signal BSY,BSY_q : std_logic;
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signal D_WE : std_logic;
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signal D_WE : std_logic;
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