awready and wready set high in master without slave value

[sazam0]

I am a newbie to axi-lite. I was trying to mimic the example figure in the documentation.
I have 1x1 crossbar. My master awchannel and wchannel are the following. From the slave side I assign awready and wready to 0. But I see these signals asserts themselves in master. Is it bug, or am I missing something?

// w_en signal is external signal from testbench.
// aw channel
always_ff @(posedge clk) begin
   if (rst) begin
		awaddr  <= 32'h0;
		awvalid <= 1'b0;
		su_addr <= DEFAULT_VAL;
   end
	else if(w_en) begin
		awvalid <= 1'b1;
		awaddr <= su_addr;
	end
	else awvalid <= 1'b0;
end 

// wchannel
always_ff @(posedge clk) begin
   if(rst) begin
		wvalid <= 1'b0;
		su_data <= DEFAULT_VAL;
	end
   else if(w_en) begin
		 wvalid <= 1'b1;
		 wdata <= su_data;
	  end
	else wvalid <= 1'b0;
end