Bi-directional Pin Use

have internal signals data_write and data_read. I need to tristate data_write when data comes into the device for data_read. I have a internal tri_state signal but can't seem to figure out the correct way to code this.

assume an IO pad similar to following:

module IO(PAD, IN, OUT, OE);

inout PAD; output IN; // from the pad IN to the core input OUT; // OUT from the core input OE;

wire IN = PAD;

wire PAD = OE ? OUT : 1'bZ

endmodule

and see if you connect your data and tri-state signals to the ports of the IO. Normally you just need to connect your tri-state to the data PADs and your data_write & data_read should go to the control signals of the external memory.

Now in VHDL :)

data_pins 'Z');

I was just about to have to ask this very question. Much obliged.