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8086 have 5 interrupt lines.

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Is rst7.5 is a maskable interrupt in 8086?

No. RST7.5 is a maskable interrupt on the 8085, not the 8086/8088.


How many data lines there in 8086?

There are 16 data lines in 8086.


How the interrupt can be masked or unmasked in 8086?

The 8086 interrupt priorities are concerned ,software interrupt have the highest priority,followed by NMI ,followed by INTR.The lowest priority signals are unmaskable interrupts.


How 8086 responds to an interrupt?

When the 8086 microprocessor receives an interrupt signal, it completes the execution of the current instruction and saves the address of the next instruction onto the stack. It then determines the appropriate interrupt vector from the Interrupt Vector Table (IVT) based on the interrupt type. The processor then transfers control to the interrupt service routine (ISR) associated with that interrupt. After the ISR has executed, the 8086 retrieves the saved address from the stack and resumes execution from where it was interrupted.


What do you mean by IVT in 8086?

Interrupt vector table


What is Bios function call in 8086 microprocessor?

The BIOS function in the 8086 microprocessor is called an interrupt function. It is an interrupt function because it is not called by a function call instruction.


What is the size of the interrupt vector table in the 8086-8088 microprocessor?

There are 256 different interrupt vectors in the 8086/8088. Each vector is a far CS:IP address, which is four bytes. That makes the interrupt vector table 1,024 bytes.


What is physical starting address and ending address of interrupt vector table of 8086?

The 8086 interrupt table is from 0000h to 03FFh for interrupt 0 through interrupt 255. It is common practice to design systems that use only the lower-numbered interrupts and then use the upper part of the interrupt table for code or data. For more information see: http://datasheets.chipdb.org/Intel/x86/808x/datashts/8086/231455-005.pdf


What is INTA in 8086 in miscropress?

Interrupt Acknowledgegenerated by the microprocessor in response to INTR. Causes the interrupt vector to be put onto the data bus


How many memory address does this number of address lines allow the 8086 to access directly?

The 8086/8088 has 20 address lines. It can access 220, or 1MB, or 1,048,576 bytes of memory.


How many memory addresses does this number of address lines allow the 8086 to access directly?

The 8086/8088 has 20 address lines. It can access 220, or 1MB, or 1,048,576 bytes of memory.


How many multiplexed lines in 8086?

The address lines A0..A15 are multiplexed with the data lines D0..D15 on the pins AD0..AD15