Forum Discussion

senjd's avatar
senjd
Icon for New Contributor rankNew Contributor
6 years ago

Is it possible to have more than one avalon ports on external memory interface IP (DDR3) of CYCLONE 10 GX ?

In ddr3 memory, I want to do write transaction from one port and from another port i want to read it. But i am not able to find controller settings where i can cofigure different avalon ports for my ...
NurAida_A_Intel's avatar
NurAida_A_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi senjd,

The multi-port front end and its associated fabric interface provide up to six command ports, four read data ports and four write-data ports. Each port can be configured as read only or write only, or read and write ports may be combined to form bidirectional data ports. However, the multi-port front end (MPFE) are available only in the Arria V and Cyclone V device families.

As suggested by @sstrell​, you can connect multiple master to Avalon slave in Qsys to configure your purpose.

Thanks @sstrell​ for the reply.

Thanks

Regards,

NAli1

Sushmita's avatar
Sushmita
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Hi NAli,

Can you please explain what you meant by "read and write ports may be combined to form bidirectional data ports."?

do you mean simultaneous read and write is not possible?

  • NurAida_A_Intel's avatar
    NurAida_A_Intel
    Icon for Frequent Contributor rankFrequent Contributor
    6 years ago

    Dear SBilg,

    "read and write ports may be combined to form bidirectional data ports." means that you can perform the data transmission in both direction ( read and write) but not at a same time.

    Yes, you are right on the 2nd statement. Simultaneous read and write operation is not possible.

    Hope this clear.

    Thanks

    Regards,

    NAli1