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8.1.4.5 Wakeup Sources/Events Following events will wake up the device from Deep sleep(low power) modes. These are part of the Wakeup Power domain and remain always ON. Note: For differences in operation based on AM335x silicon revision, see Silicon Revision Functional Differences and Enhancements, Silicon Revision Functional Differences and Enhancements. • GPIO0 bank • dmtimer1_1ms (timer based wakeup) • USB2PHY (USB resume signaling from suspend) – Both USB ports supported. • TSC (touch screen controller, ADC monitor functions ) • UART0 (Infra-red support) • I2C0 • RTC alarm
特别提一下，AM335x支持多种低功耗的模式，所以建议你一定要仔细核对TRM的8.1.4.3 Power Modes，确认自己选择的那种低功耗模式可以支持。
