alt_alt2gxb_tx4	alt_alt2gxb_tx4_inst (
	.cal_blk_clk ( cal_blk_clk_sig ),
	.gxb_enable ( gxb_enable_sig ),
	.gxb_powerdown ( gxb_powerdown_sig ),
	.pll_inclk ( pll_inclk_sig ),
	.tx_ctrlenable ( tx_ctrlenable_sig ),
	.tx_datain ( tx_datain_sig ),
	.tx_digitalreset ( tx_digitalreset_sig ),
	.tx_dispval ( tx_dispval_sig ),
	.tx_forcedisp ( tx_forcedisp_sig ),
	.pll_locked ( pll_locked_sig ),
	.tx_clkout ( tx_clkout_sig ),
	.tx_dataout ( tx_dataout_sig )
	);
