INTR, RST 7.5, RST 6.5, RST 5.5 are maskable interrupts in 8085 microprocessor. Non-Maskable Interrupts are those which cannot be disabled or ignored by microprocessor.TRAPis a non-maskable interrupt. It consists of both level as well as edge triggering and is used in critical power failure c...
If you check the datasheet ofTM4C123GARM Cortex M4 microcontroller, it has 15 system exceptions and 138 peripheral interrupts. Peripheral interrupts are also defined as simple exceptions in literature. The main difference between system exceptions and interrupts is that system exceptions are generated...
In polling, the first device encountered with the IRQ bit set is to be serviced first, and appropriate ISR is called to service the same. It is easy to implement, but a lot of time is wasted by interrogating the IRQ bit of all devices. Vectored Interrupts In vectored interrupts, a devic...
When you upload your code to a microcontroller, the binary image of code gets stored in flash memory. Because flash is a non-volatile memory. Therefore, code stores there permanently even without power. During the microcontroller booting process, some data which is stored in flash memory is mov...
‘GPIO’ mode, by which I mean non-IOF functions, when the IOF_EN bit for that pin is set to 0), you must manually clear the pending interrupt before the handler returns. Otherwise, you will see a never-ending stream of interrupts back to the same handler. For the GPIO block, ...