Achronix Speedster22i Snapshot - Manual (Page 10)

trstn : in std_logic ;
tms : in std_logic ;
tdi : in std_logic ;
tdo : out std_logic ;
usr_clk : in std_logic ;
Monitor_ch : in std_logic_vector (MNTR_WIDTH-1 downto 0);
trigger_ch : in std_logic_vector (35 downto 0) ;
rstn_out : out std_logic ;
Arm : in std_logic_vector (35 downto 0) ;
Stimuli : out std_logic) ;
end component ;
component users_logic is
port ( clk : in std_logic ;
rstn : in std_logic;
data_out_from_block : out std_logic_vector (MNTR_WIDTH-1 downto 0);
data_for_trigger : out std_logic_vector (35 downto 0);
snapshot_arm : out std_logic;
stimuli : out std_logic_vector (35 downto 0));
end component ;
---- SIGNAL DECLARATION ---
signal : monitor_ch_to_monitor : std_logic_vector (MNTR_WIDTH-1 downto 0) ;
signal : trigger_ch_to_trigger : std_logic_vector (35 downto 0) ;
--- THESE SIGNALS WILL GO TO TRIGGER-DETECTOR BLOCK TO DO ---- ----
--- PATTERN MATCHING -----
signal : rstn : std_logic ;
signal : arm : std_logic ;
signal : stimuli : std_logic_vector (35 downto 0) ;
begin
---- MACRO INSTANTIATION ---
snapshot_instance : ACX_SNAPSHOT
generic map (MNTR_WIDTH => 144)
port map ( tck => tck,
trstn => trstn,
tms => tms,
tdi => tdi,
tdo => tdo,
usr_clk => usr_clk,
Monitor_ch => monitor_ch_to_monitor,
trigger_ch => trigger_ch_to_trigger,
rstn_out => rstn,
Arm => arm,
Stimuli => stimuli) ;
---- NOTE: GENERIC MNTR_WIDTH VALUE OF SNAPSHOT MACRO ---
---- DEPENDS ON MONITOR CHANNEL WIDTH. BELOW IS THE TABLE --- -
---- SHOWS HOW THE RAM SIZE GETS IMPLEMENT BY MONITOR CH WIDTH -
---------------------------------------------------------------
-- RAM_SIZE Monitor-Channel-Width
--- 0 36
--- 0 72
--- 1 108
--- 1 144
---------------------------------------------------------------
10 UG016, September 22, 2014