• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Subscribers 99 subscribers
  • Views 482 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

can keystone II device 66ak2h06 connecto to 4 x 1000M ethernet PHYs Simultaneously

akuaku
Prodigy 50 points
Other Parts Discussed in Thread: 66AK2H06, 66AK2H14

Hello:

    Now i am Confused by 5 port Ethernet switch in 66ak2h06, In my project i need to output 4 x GigE Simultaneously by SGMII interface, and they will work all the time, can i do so?

  • 0
    TI__Guru* 81335 points

    Hi Changshui Li,

    Yes. You can use 4 SGMII Interface ports available in 66AK2H06. Please refer the 66AK2H06 datasheet and product folder for more information.

    Datasheet: http://www.ti.com/lit/ds/symlink/66ak2h06.pdf

    Product Folder: http://www.ti.com/product/66ak2h06

    Thanks.

  • 0 in reply to Raja
    Prodigy 50 points

    Hi Rajasekaran 

       There are four SGMII interface in 66ak2h06, but the bandwidth between NETCP and DSP is 1Gbps, how can i use them  simultaneously  for the four port at the speed of 1Gbps each?

  • 0 in reply to akuaku
    TI__Guru* 95265 points

    NETCP is connected to DSP cores via Teranet, see "7.3 TeraNet Switch Fabric Connections Matrix - Configuration Space" of 66AK2H14/12/06 Multicore DSP+ARM KeyStone II System-on-Chip (SoC) (Rev. E) datasheet. The bandwidth is far beyond 1Gb/s. You can use 4 SGMII port with 1.0Gb/s each.

    Regards, Eric 

  • 0 in reply to lding
    Intellectual 460 points

    Whilst NETCP is connected to the DSPs and ARMs via Teranet the only connection between NETCP and the SGMII ports appears to be via the host port of the GbE switch which is limited to 1Gb/s.  

    See:

    KeyStone Architecture
    Gigabit Ethernet (GbE) Switch Subsystem

    Figure 1-2 KeyStone II Ethernet Switch Subsystem Block Diagram

    That would suggest that it is not possible to transmit/receive data at more than 1Gb/s via the 4 SGMII ports as the OP and I want to do.  

     Do I understand this correctly or is there some way to transmit/receive data directly from the SGMII bypassing the GbE switch?

  • 0 in reply to Graham Newton
    TI__Guru* 95265 points

    The Ethernet traffic goes through switch, the 4 SGMII port each has 1 Gb/s. However, the Host port connected to NETCP is not limited to 1 Gb/s.

    Regards, Eric