Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet
Product codes
AT91SAM9M10-G45-EK
810
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
In this state bus powered devices must drain less than 500 μA from the 5V VBUS. As an example, the microcon-
troller switches to slow clock, disables the PLL and main oscillator, and goes into Idle Mode. It may also switch off
other devices on the board.
troller switches to slow clock, disables the PLL and main oscillator, and goes into Idle Mode. It may also switch off
other devices on the board.
The UDPHS device peripheral clocks can be switched off. Resume event is asynchronously detected.
38.5.12.8
Receiving a Host Resume
In Suspend mode, a resume event on the USB bus line is detected asynchronously, transceiver and clocks dis-
abled (however the pull-up should not be removed).
abled (however the pull-up should not be removed).
Once the resume is detected on the bus, the signal WAKE_UP in the UDPHS_INTSTA is set. It may generate an
interrupt if the corresponding bit in the UDPHS_IEN register is set. This interrupt may be used to wake-up the core,
enable PLL and main oscillators and configure clocks.
interrupt if the corresponding bit in the UDPHS_IEN register is set. This interrupt may be used to wake-up the core,
enable PLL and main oscillators and configure clocks.
38.5.12.9
Sending an External Resume
In Suspend State it is possible to wake-up the host by sending an external resume.
The device waits at least 5 ms after being entered in Suspend State before sending an external resume.
The device must force a K state from 1 to 15 ms to resume the host.