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Altera_Forum's avatar
Altera_Forum
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8 years ago

"External connection" conduit on DDR2 controller (with ALTMEMPHY)

I am working on a Cyclone IV design, and need a DDR2 controller.

Using Qsys, I have added the IP block DDR2 SDRAM CONTROLLER with ALTMEMPHY

One of the interfaces on this IP is labeled "external_connection" and contains three signals, all outputs: local_init_done, local_refresh_ack, reset_phy_clk_n

I get a Qsys warning that this must be exported or connected to a matching conduit.

My problem is that I don't know what I am supposed to do with these signals.

the link to online documentation for the IP doesn't work, I get the "404" error at the Altera website. I have tried looking in the "Embedded Peripherals IP User Guide" under "SDRAM Controller core" but there is no mention of these signals that I can find.

Can anyone help me?

Rod

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    This is the IP status signal. Usually it have to export and monitor by user. however, if it is not necessary for your design, you can ignore this warning.

    (This message was posted on behalf of Intel Corporation)