Search results
Results from the WOW.Com Content Network
The module supports USB suspend, resume and remote wake-up operations and can be configured for up to eight input and eight output endpoints. The module includes an integrated physical interface (PHY); a phase-locked loop (PLL) for USB clock generation; and a flexible power-supply system enabling bus-powered and self-powered devices.
Wake-on-Ring (WOR) or Wake-on-Modem (WOM) is a specification that allows supported computers and devices to "wake up" or turn on from a sleeping, hibernating or "soft off" state (e.g. ACPI state G1 or G2), and begin operation.
Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring.
Wake-on-LAN can, however, operate across any network in practice, given appropriate configuration and hardware, including remote wake-up across the Internet. In order for Wake-on-LAN to work, parts of the network interface need to stay on. This consumes a small amount of standby power. To further reduce power consumption, the link speed is ...
up to 1024 KB flash memory and 256 KB SRAM, 6 KB EEPROM; up to 120 MHz system clock; 2.9–3.6 V supply voltage; 360 uA/MHz active power and 1.29uA in hibernate RTC mode; up to 90 GPIO pins in 15 blocks with some supporting fast-toggle operation, all supporting interrupt, some support wake-up from hibernate; USB host, device and OTG peripheral
Host wants to wake device up. K ≥ 20 ms then EOP pattern Resume (device) Device wants to wake up. (Must be in idle for at least 5 ms.) Device drives K ≥ 1 ms Host then sends a resume signal. Keep alive Host wants to tell low speed device to stay awake. EOP pattern once every millisecond. —
The xHCI reduces the need for periodic device polling by allowing a USB 3.0 or later device to notify the host controller when it has data available to read, and moves the management of polling USB 2.0 and 1.1 devices that use interrupt transactions from the CPU-driven USB driver to the USB host controller.
In this mode the low-frequency oscillator is disabled, but the low-leakage RAM ensures full data retention and the low-power analog comparator or asynchronous external interrupts can wake-up the device. 0.5 μA Shutoff: EM4: In this deepest energy mode available, the EFM32 MCU is completely shut down, and the only way to wake up is with a reset.