Using the USB-B registers for the SL811HS

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    Question: Under what circumstances would you use the USB-B registers and could you provide some example code on how to use the B-registers?



    The B register set usage is the same as the A register set. You would only use both register sets if the SL811HS were supporting multiple devices.
     If you download the SL811HS-DK design files from the dev kit section of our website, you'll find a file called sl11h.h where both sets are defined. Here they are defined as:

    #define EP0Control 0x00

    #define EP0Address 0x01

    #define EP0XferLen 0x02

    #define EP0Status 0x03

    #define EP0Counter 0x04

    #define EP0BControl 0x08

    #define EP0BAddress 0x09

    #define EP0BXferLen 0x0a

    #define EP0BStatus 0x0b

    #define EP0BCounter 0x0c