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Intel's 8237 DMA controller : 1) The 8237 contain 4 independent I/O channels 2) It contains 27 registers, 7 of which are system-wide registers and 5 for each channel. 3)
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Interrupt Table Each interrupt level has a booked memory location, called an interrupt vector. All these vectors (or pointers) are stored in the interrupt table. Table lies at
Type of Microprocessor : Microprocessors fall into 3 categories: Single Chip Microcomputers: - Contains RWM, ROM, microprocessor, I/O port, timer and clock. General pu
Write a program that performs the addition, subtraction, multiplications, division of the given operands. Perform BCD operation for addition and subtraction.
Segment Registers The 8086 addresses a segmented memory unlike 8085. The complete 1 megabyte memory, which 8086 is capable to address is divided into 16 logical segments.Thusea
IRET : Return from ISR:- When an interrupt service routine is called, before transferring control to it, the IP, CS register and flag registers are stored in the stack to ment
As an instance of the normal priority mode, imagine that initially AEOI is equal to 0 and all the ISR and IMR bits are clear. Also consider that, as shown in given figure, requests
Program : Write an assembly program to find out the number of positive numbers and negative numbers from a given series of signed numbers. Solution : Take the i th num
Explain the basic method for implementing paging
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