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Will Serial Port interrupt wake up EZ-USB | Cypress Semiconductor

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Will Serial Port interrupt wake up EZ-USB

Last Updated: January 01, 2012

Will a serial port interrupt (either a receive or transmit interrupt) wake the EZ-USB if it has gone to sleep?


No. External logic is needed to pull WAKEUP# low to resume from Suspend. Please see chapter 9 of the Technical Reference Manual, table 9-1 and section 9.3. If it is desired to have an external interrupt resume from suspend external circuitry will be required.

EZ-USB Technical Reference Manual

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