Search results with tag "Interrupt service"
Measuring Interrupt Latency - NXP
www.nxp.comof an Interrupt Request (IRQ) and the start of the respective Interrupt Service Routine (ISR). The interrupt latency is expressed in core clock cycles. 5.There is another exact definition-the number of clock cycles from the assertion of the interrupt request to the first ISR instruction executed, as shown in Figure 6.1. Conclusion
AN249: Human Interface Device Tutorial - Silicon Labs
www.silabs.comdata reception and transmission-related events, by setting flags. These flags trigger the servicing of an interrupt service routine (ISR) if interrupts have been enabled. 3.1.3. USB Device Classes The USB specification and supplemental documents define a number of device classes that categorize USB
Low-voltage translating 16-bit I2C-bus/SMBus I/O ... - NXP
www.nxp.comThis minimizes the host’s interrupt service response for fast moving inputs. The device Port P outputs have 25 mA sink capabilities for directly driving LEDs while consuming low device current. One hardware pin (ADDR) can be used to program and vary the fixed I2C-bus address
Interrupt handling - UMD
classweb.ece.umd.eduinterrupt can then be serviced by an interrupt service routine (ISR). Interrupt handling 5 Figure 1.3 Example of a simple interrupt system The interrupt handler is the routine that is executed when an interrupt occurs and an ISR is a routine that acts on …
Interrupts C - Uppsala University
www.signal.uu.seC.4 FEATURES OF INTERRUPT SERVICE ROUTINES An interrupt service routine (ISR) is a special routine that is executed outside of the normal program flow. An ISR is invoked in response to a particular interrupt occurring at an undetermined time. Since an interrupt occurs at an unknown time, it cannot return a value directly to a program.