Interrupt vectors 0 to 31 are usually reserved for microprocessor interrupts. The remainder can be used for hardware or software interrupts. The interrupt type number determines its place within the interrupt vector table and its priority (with the exception of the NMI interrupt (2), but has the...
Interrupt vectors 0 to 31 are usually reserved for microprocessor interrupts. The remainder can be used for hardware or software interrupts. The interrupt type number determines its place within the interrupt vector table and its priority (with the exception of the NMI interrupt (2), but has the...
The amount of physical memory a microprocessor can access depends on the number of address lines that emanate from the chip. Each additional bit doubles the amount of addressable memory. The 8086 can address one Megabyte of memory, which requires a 20-bit address. Rather than introduce a 20-b...
CPU 15 may be any type of processor designed to do any type of process function. One example would be the INTEL 8086 microprocessor. Shared memory 13 may be any type of random access memory, such as Mostek MK 4802. Programmable interrupt controller 14 may be an INTEL 8259A which serves ...
(a) The interrupt vector table for the Intel microprocessor; (b) the contents of an interrupt vector. In an interrupt vector table, the first five interrupt vectors are identical in all Intel microprocessor family members, from the 8086 to the Pentium. Other interrupt vectors exist for the ...
Figure 5.5.(a) The interrupt vector table for the Intel microprocessor; (b) the contents of an interrupt vector. In an interrupt vector table, the first five interrupt vectors are identical in all Intel microprocessor family members, from the 8086 to the Pentium. Other interrupt vectors exist ...