His main areas of research are in theoretical aspects of multiprocessor computer systems, in particular the theory of the interconnection and synchronization of such systems. He is also interested in their hardware implementation. He has worked for Ford, ICL and the University of Liverpool, UK, in...
A software interrupt models a hardware interrupt in nearly every respect. In the case of a software interrupt, the signal is issued normally by another task in the task family; the recipient of the interrupt will have designated and defined, in advance, the procedure that should be executed ...
detachInterrupt(pin); INTERRUPTS Function detachInterrupt() Turns off an interrupt. Syntax: detachInterrupt(pin); pin: In the case of Arduino UNO it could be INT0 (D2) or INT1 (D3) Function interrupts() This turns on the interrupts. Think of it as a kind of general authorization for the...
PROGRAMMING TIMER INTERRUPTS Roll-over timer flag and interrupt JNB TF, target Programming external hardware interrupts Sampling the low level-triggered interrupt Edge-triggered interrupts Sampling the edge-triggered interrupt RI and TI flags and interrupts Use of serial COM in the 8051 Clearing RI and...
The system designer must ensure the application's higher priority external interrupts have lower number in- terrupts. Each external interrupt pin has a mask bit in the SIMASK register to enable it. IRQ[0:7] have six priorities and interrupt code. The hardware design must connect higher ...
target system program from a plurality of target system peripheral control means which in the target system being emulated couple to a plurality of peripheral devices, and connect in common to share the common interrupt hardware facilities of said target system, said data processing system including:...
13.The computer system of claim 8, wherein setting the interrupt mask bit comprises determining if a user associated with the software thread has a privilege level exceeding a threshold value. 14.The computer system of claim 8, wherein the interrupt mask bit comprises a hardware register. ...
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