picoblaze的程序 这是其中的一小段 求高手指点其中的含义
Fundamental Control
--
-- Definition of T-state and internal reset
--
------------------------------------------------------------------------------------
--
t_state_lut: LUT1
--synthesis translate_off
generic map (INIT => X"1")
--synthesis translate_on
port map( I0 => t_state,
O => not_t_state );
toggle_flop: FDR
port map ( D => not_t_state,
Q => t_state,
R => internal_reset,
C => clk);
reset_flop1: FDS
port map ( D => '0',
Q => reset_delay,
S => reset,
C => clk);
reset_flop2: FDS
port map ( D => reset_delay,
Q => internal_reset,
S => reset,
C => clk);
--
谢谢各位 纠结啊 |
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