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The detection of a RESET signal causes the processor to enter a system initialization period of six clock cycles, after which it sets the interrupt request disable flag in the status register and loads the program counter with the values stored at the processor initialization vector ($00FFFC – $00FFFD) before commencing execution. [1]
In the C Standard Library, signal processing defines how a program handles various signals while it executes. A signal can report some exceptional behavior within the program (such as division by zero), or a signal can report some asynchronous event outside the program (such as someone striking an interactive attention key on a keyboard).
One pin receives the timer restart ("kick" [a]) signal from the computer; another pin outputs the timeout signal. A watchdog timer ( WDT , or simply a watchdog ), sometimes called a computer operating properly timer ( COP timer ), [ 1 ] is an electronic or software timer that is used to detect and recover from computer malfunctions.
One of the issues with using an RC network to generate a PoR pulse is the sensitivity of the R and C values to the power-supply ramp characteristics. When the power supply ramp is rapid, the R and C values can be calculated so that the time to reach the switching threshold of the Schmitt trigger is enough to apply a long enough reset pulse.
Signal handling is vulnerable to race conditions. As signals are asynchronous, another signal (even of the same type) can be delivered to the process during execution of the signal handling routine. The sigprocmask(2) call can be used to block and unblock delivery of signals. Blocked signals are not delivered to the process until unblocked.
Power management, including control voltage regulator module; Controlling indicator LEDs (e.g. caps lock, scroll lock, num lock, battery, ac, power, wireless LAN, sleep) Managing the battery charger and the battery [2] Allowing remote diagnostics and remediation over the network; Performing software-requested CPU reset [1] Controlling the ...
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The USB module is fully compliant with the USB 2.0 specification and supports control, interrupt and bulk transfers at a data rate of 12 Mbps (full speed). The module supports USB suspend, resume and remote wake-up operations and can be configured for up to eight input and eight output endpoints.