Interrupt acknowledge is the process of acknowledging a hardware interrupt, obtaining an interrupt vector address, and initiating the interrupt service routine in software. The INTA- (Interrupt Acknowledge) pin has the same timing as RD-, and external hardware is expected to provide an opcode in response to it. In the case of TRAP, RST7.5, RST6.5, and RST5.5, there is no specific interrupt acknowledge cycle like there is for INTR, but everything else is the same.
The INTA- (Interrupt Acknowledge) pin on the 8085 is an acknowledge of the INTR (Interrupt Request). It has the same timing as RD-, and external hardware is expected to provide an opcode, usually a CALL or an RST instruction, in response to INTA-.
INTA stands for interrupt acknowledge. When it goes low, it asks the external device to get ready to place the type number onto the data bus. One device sends the interrupt request to the other device and when the other device is ready to accept that request , it sends the interrupt acknowledge to the device.
One of the things that the acronym INTA stands for is the International Trademark Association. Another thing that it can stand for is Interrupt Acknowledge.
By ABDULLAH ABID Secretary Info & IT GLOBAL PEACE COUNCIL PAKISTAN. http://h.1asphost.com/gpcp/org The Interrupt-In-Service-Flag is set at the beginning of an interrupt-acknowledge cycle. It is reset by the IRET (Interrupt-RETurn) instruction. When IIS is set, interrupts are disabled. When the Status-register is read, IIS always reads as '0'.
Interrupt is a verb.
An interrupt vector is the memory address of an interrupt handler, or an index into an array called an interrupt vector table or dispatch table. Interrupt vector tables contain the memory addresses of interrupt handlers. When an interrupt is generated, the processor saves its execution state via a context switch, and begins execution of the interrupt handler at the interrupt vector.
"You should not interrupt class," the teacher scolded the boy.
In the 8086/8088, the interrupt vector table is the first 1024 bytes of memory. In the 8085, the interrupt vector table is the first 64 bytes of memory if using the RST form of interrupt, otherwise the interrupt vector is provided by the interrupting device, usually in the form of a CALL instruction. The interrupt handler is wherever the interrupt vector points to.
the prefix of interrupt is in
The prefix for interrupt is "inter-".
DMA (Direct Memory Access) does not actually interrupt the CPU - it requests control of the bus, so that it can perform the transfer itself. It becomes a bus-master. This is done using the HOLD and HLDA (Hold Acknowledge) control pins. This is not the same thing as an interrupt, which is where an external device requests the CPU's attention, and the CPU goes off and performs some code to service that request. In the case of DMA, the CPU actually freezes for the few cycles that the DMA controller requires, which is much, much more efficient than using an interrupt service routine.
An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context