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When it's not in a microcontroller chip however, the 6502 microprocessor by itself only has the two interrupt inputs, IRQ and NMI, and their two corresponding vectors. More about NMI later. Interrupts on the IRQ input can be masked; ie, you can tell the processor to ignore them. ...
In a first mode, called the "real mode," the 80286 emulates the architecture of Intel's previous 8086, 8088 microprocessor family, which is used in the IBM PC and compatible computers, for example. Thus, computers which incorporate the 80286 microprocessor, such as the IBM PC/AT, can run...
8086 Microprocessor Interrupts By: Vijay Kumar. K Reference From Slide Share. 21/11/2005CAP2411 Input & Output Instructions CPU communicates with the peripherals through I/O registers called I/O ports. There are 2 instructions, IN. 10H Interrupt. Option 0H – Sets video mode. Registers used:...
kashanu.ac.ir Microprocessors 8-9 Enabling and disabling an interrupt by bit operation Recommended in the middle of program SETB EA ;Enable All SETB ET0 ;Enable Timer0 ovrf SETB ET1 ;Enable Timer1 ovrf SETB EX0 ;Enable INT0 SETB EX1 ;Enable INT1 SETB ES ;Enable Serial port...
DIGITAL INPUTS; PULL-UP AND PULL-DOWN RESISTORS Absolutely none. The D2 remains disconnected in both cases. We say it’s “floating”. Which one wins: level “1” or level “0”? There’s really no definite answer Sometimes the “1” comes out on top and other times the “0” 6 ...