FAQ

MachXO: How is the TSALL pin used in the MachXO?

Solution:

TSALL is a programmable IO which can be used to Tristate all IOs when asserted. To use TSALL in your design, instantiate the TSALL component as shown below:

TSALL Verilog HDL Example (MachXO)

TSALL   TSALL_INST (.TSALL ());

TSALL VHDL Example (MachXO)

    component TSALL

        port( TSALL: in STD_ULOGIC );

    end component;

    -- Attributes for Synplify

    attribute syn_black_box: boolean ;

    attribute syn_black_box of TSALL: component is true;

    attribute syn_noprune: boolean ;

    attribute syn_noprune of TSALL: component is true;

    -- Attributes for Precision RTL

    attribute BLACK_BOX : boolean;

    attribute BLACK_BOX of TSALL: component is true;

    attribute DONT_TOUCH : boolean;

    attribute DONT_TOUCH of TSALL_INST: label is true;

begin

    TSALL_INST: TSALL port map (TSALL=><global tristate sig>);