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Download as PDF; Printable version; ... (e.g. 16C5x, 16F5x) extend the register address space using the high-order bits of the FSR. ... 14-bit PIC instruction set 1 3 ...
In computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQs) coming from multiple different sources (like external I/O devices) which may occur simultaneously. [1]
PIC instruction sets vary from about 35 instructions for the low-end PICs to over 80 instructions for the high-end PICs. The instruction set includes instructions to perform a variety of operations on registers directly, on the accumulator and a literal constant, or on the accumulator and a register , as well as for conditional execution, and ...
In computing, position-independent code [1] (PIC [1]) or position-independent executable (PIE) [2] is a body of machine code that executes properly regardless of its memory address. [ a ] PIC is commonly used for shared libraries , so that the same library code can be loaded at a location in each program's address space where it does not ...
For example, the 82489DX has an APIC version number of 0, while version 1 was assigned to the first generation of local APICs integrated in the Pentium 90 and 100 processors. [1] In systems containing an 8259 PIC, the 8259 may be connected to the LAPIC in the system's bootstrap processor (BSP), one of the system's I/O APICs, or both. Logically ...
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The first PIC, the master, is the only one that directly signals the CPU. The second PIC, the slave, instead signals to the master on its IRQ 2 line, and the master passes the signal on to the CPU. There are therefore only 15 interrupt request lines available for hardware.
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