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Altera_Forum
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14 years ago

Which I/O standard should i use for ASI_RX MegaIP

The following is a asi_rx module i creat with MegaWizard.

The device i use is EP4CGX30F324.

Pin T1&T2 are asi input.

I set the asi_rx signal to T2,and set I/O standard as LVDS.

But i can't finish fit step.

The quartus error message is :

Error: I/O bank QL0 contains input or bidirectional pins with I/O standards that make it impossible to choose a legal VCCIO value for the bank

I think I/O standard should be LVDS.Am i wrong?

asi_in asi_rxins(

.rst(~grst),

.asi_rx(ASI_RX),

.rx_clk135(clk_135m),

.cal_blk_clk(CLK_27M),

.gxb_powerdown(1'B0),

.reconfig_clk(),

.reconfig_togxb(),

.rx_data(asi_rx_d),

.rx_ts_status(),

.rx_data_clk(asi_rx_clk),

.rx_data_valid(asi_rx_vld),

.reconfig_fromgxb());