Softdevice Architecture

[Mihir Tailor]

Hello,

I referred a Softdevice 130,310 & 132 Specification, from where i noticed that softdevice includes Host & Link Layer (As a part of Controller).

So, i want to ask the query related to Softdevice Architecture.

Does softdevice include Host & Link Layer (As a part of Controller) both or only Host part?

Thanks.

[Frederik]

Hi

The SoftDevice includes both a host and a link layer. A Bluetooth controller consists of a link layer and a phy implementation (which is provided in hardware by the nordic SoC's). See the bluetooth core specification version 5 page 180 for a figure outlining this ( https://www.bluetooth.org/DocMan/handlers/DownloadDoc.ashx?doc_id=421043 ).

The link layer in the SoftDevice however is not not HCI conformant and communicates with the host directly. Therefore it cannot be used together with another host.

For more information about which bluetooth components that are included in the SoftDevice see the qualification listing:

launchstudio.bluetooth.com/.../64933