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How do I ensure HT82K96A/HT82K96E USB SIE working normally?

April 26, 2017ensure ht82k96a ht82k96e sie USB working

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How do I ensure HT82K96A/HT82K96E USB SIE working normally?

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Answer To meet the spec. of the USB suspend mode current to be less than 500uA, user will set USBCKEN bit to 0 in the suspend mode, and the USB SIE clock will stop. To ensure the USB SIE still function normally after the device Wakeup. If the USC register SUSP bit=0 in the USB Interrupt Subroutine or in the RESUME mode (USC Register Resume bit=1), the USBCKEN bit of the SCC Register must be set to 1.