FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
5974 Discussions

Ethernet GMII to RMII converter ip

snehal_p
New Contributor I
1,373 Views
Hello,
 
Ethernet RMII Interface on the cyclone V board is connected through FPGA IO, to use one of the HPS EMACs we need GMII to RMII converter ip.
 
Can anyone help with the Ethernet IP to convert GMII to RMII.
 
Thanks,
snehal_p
0 Kudos
1 Solution
ZiYing_Intel
Employee
1,357 Views

Hi snehal_p,


Although the HPS EMAC supports RGMII(dedicated hps part pin), you can try route the EMAC to the FPGA in order to re-use the HPS I/O for other peripherals. When the EMAC is routed into the FPGA it is exposed as a MII/GMII interface. So when the EMAC is routed into FPGA, it support GMII interface.


Best regards,

Zi Ying


View solution in original post

0 Kudos
8 Replies
ZiYing_Intel
Employee
1,358 Views

Hi snehal_p,


Although the HPS EMAC supports RGMII(dedicated hps part pin), you can try route the EMAC to the FPGA in order to re-use the HPS I/O for other peripherals. When the EMAC is routed into the FPGA it is exposed as a MII/GMII interface. So when the EMAC is routed into FPGA, it support GMII interface.


Best regards,

Zi Ying


0 Kudos
snehal_p
New Contributor I
1,353 Views

Hello Zi Ying,

 

Thanks for the response.

On cyclone V board we have Ethernet RMII interface through FPGA IO.

 As when the EMAC is routed into the FPGA it is exposed as a MII/GMII interface. So when the EMAC is routed into FPGA, it support GMII interface. Can you suggest GMII to RMII converter ip.

 

Thanks,

snehal_p

0 Kudos
ZiYing_Intel
Employee
1,333 Views

Hi,


Just wonder that are you plan to use RGMII with Triple Speed Ethernet IP?


Best regards,

Zi Ying


0 Kudos
snehal_p
New Contributor I
1,330 Views

Hi,

 

With triple speed ethernet ip can I use RMII.

 

Thanks,

snehal_p

0 Kudos
FvM
Valued Contributor III
1,311 Views
Obviously RMII is restricted to 10/100 Mbps. I presume that's what you want.
0 Kudos
ZiYing_Intel
Employee
1,289 Views

Hi snehal_p,

 

You may try with the HPS GMII to RGMII Converter IP.

 

The IP is removed on all Quartus Pro version 17.1 onward but you can use the IP in Quartus standard version because the Standard version is to be used by Cyclone V and supported devices.

 

Best regards,

Zi Ying


0 Kudos
ZiYing_Intel
Employee
1,155 Views

Hi snehal_p,


Do you still have any question about this case?

Else I would like to have your permission to close the case.


Best regards,

Zi Ying


0 Kudos
ZiYing_Intel
Employee
1,106 Views

Hi,


Since I no hear any feedback from you, I am now close the case.

If you have another question after the case closed, please do feel free to submit another issue.


Best regards,

Zi Ying


0 Kudos
Reply