Table of Contents
- 1 Why RST 7.5 is edge triggered?
- 2 What happens when rst 5 instruction is executed in 8085 microprocessor?
- 3 Which interrupt is edge-triggered in 8085?
- 4 When RST 7.5 vector interrupt is activated in 8085 microprocessor the control is transferred to?
- 5 What are software interrupts 1 point RST 0 7 RST 5.5 7.5 intr trap?
- 6 What are software interrupts in 8085?
Why RST 7.5 is edge triggered?
RST 7.5 is an edge triggered interrupt. It is triggered during the leading (positive) edge. The interrupts which are triggered at high or low level are called level triggered interrupts. TRAP is edge and level triggered interrupt.
What happens when rst 5 instruction is executed in 8085 microprocessor?
It is a 1-Byte instruction. It is functionally same as CALL 0020H = PUSH PC + JMP 0010H. It causes a branch to subroutine starting from memory address 0020H. Similarly, RST 5 causes a branch to a subroutine at 5*8 = 0028H.
What are software interrupts RST 0 7?
There is eight software interrupts in 8085 Microprocessor starting from RST 0 to RST 7. They allow the microprocessor to transfer program control from the main program to the subroutine program. After completing the subroutine program, the program control returns back to the main program.
What is edge and level triggering?
The short answer is, edge-triggered means that you get notified only when the event is detected (which takes place, conceptually, in an instant), while level-triggered means you get notified whenever the event is present (which will be true over a period of time).
Which interrupt is edge-triggered in 8085?
INTR is the only non-vectored interrupt in 8085 microprocessor. Maskable Interrupts are those which can be disabled or ignored by the microprocessor. These interrupts are either edge-triggered or level-triggered, so they can be disabled. INTR, RST 7.5, RST 6.5, RST 5.5 are maskable interrupts in 8085 microprocessor.
When RST 7.5 vector interrupt is activated in 8085 microprocessor the control is transferred to?
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. TRAP is a non-maskable interrupt….Vectored and Non-Vectored Interrupts –
| INTERRUPT | VECTOR ADDRESS |
|---|---|
| RST 6.5 | 34 H |
| RST 7.5 | 3C H |
What is the instruction RST 7?
The instruction RST 7 is a: Restart instruction that begins the execution of a program. One-byte call to the memory address 0038H. One-byte call to the memory address 0007H Hardware interrupt.
Is edge and level triggered interrupt of 8085?
Maskable and Non-Maskable Interrupts – 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. TRAP is a non-maskable interrupt.
What are software interrupts 1 point RST 0 7 RST 5.5 7.5 intr trap?
A non-maskable is an interrupt which can not be disabled. RST 7.5, RST 5.5 are maskable interrupts but TRAP is a non-maskable interrupt.
What are software interrupts in 8085?
The software interrupts of 8085 are RST O, RST 1, RST 2, RST 3, RST 4, RST 5, RST 6 and RST 7. The software interrupt instructions are included at the appropriate (or required) place in the main program. When the processor encounters the software instruction, it pushes the content of PC (Program Counter) to stack.
Which interrupt is both edge and level-triggered?
TRAP
TRAP is a non-maskable interrupt. It consists of both level as well as edge triggering and is used in critical power failure conditions.