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CC3235SF: Max bandwith

Henry Nguyen3
Intellectual 290 points

Part Number: CC3235SF

Hello

we would like to know if there is a road map for cc3**** to improve the max bandwith to much higher number than 16 Mbps?

we noticed the spec said that UDP is 16 Mbps, TCP is 13 Mbps, peak 72 Mbps.  We wonder why TCP is only 13 Mbps and what protocol can run faster than say 48 Mbps   

thanks

henry

  • 0
    TI__Mastermind 31055 points

    Hi Henry,

    We are working to develop new Wi-Fi network processor and SoC devices. They are targeted to support comparable throughput at the IP layer though. These devices are optimized for low-power, low-throughput applications in the IoT space.

    The main limiting factor in these devices is the interface used to transmit data packets from the host to network processing/Wi-Fi subsystem. It is an SPI interface that is clocked up to 30MHz. Once you account for the overhead of the protocol used to communicate to the network processing subsystem and the overhead for packaging/handling the UDP/TCP data, you get roughly the throughput listed above. 

    The peak refers to the max throughput supported at the PHY layer in these devices. You wouldn't be able to develop an application or protocol that could support 48 Mbps on them.

    If your application needs higher throughput, I would recommend you take a look at our WiLink Wi-Fi transceivers such as our WL1837MOD. These devices use an SDIO 2.0 interface and are designed to pair with MPUs for higher throughput applications (up to ~100Mbps). We will also have new versions of these transceivers coming out in the future.

    Best Regards,

    Ben M 

  • 0 in reply to Benjamin Moore
    Intellectual 290 points

    Hi Ben,

    Thank you so much for your information.  Can you please let us know the expected time frame for the release?

    also, for TCP, what is the expected bandwidth and bus interface to pump data to the new SoC?

    on the SoC application host firmware side, would what we develop now on SimpleLink still work?

    Thanks,

    Henry

  • 0 in reply to Henry Nguyen3
    TI__Mastermind 31055 points

    Hi Henry,

    Sorry, but I can't go into the details of our roadmap on the forum.

    The future devices will be in a similar performance class to the existing WL18xx and CC31xx/CC32xx devices.

    Best Regards,

    Ben M