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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]
Various older (EPROM) PIC microcontrollers. The original PIC was intended to be used with General Instrument's new CP1600 16-bit central processing unit (CPU). In order to fit 16-bit data and address buses into a then-standard 40-pin dual inline package (DIP) chip, the two buses shared the same set of 16 connection pins.
The PIC16C84, PIC16F84 and PIC16F84A are 8-bit microcontrollers of which the PIC16C84 was the first introduced in 1993 [citation needed] and hailed [by whom?] as the first PIC microcontroller to feature a serial programming algorithm and EEPROM memory. [citation needed] It is a member of the PIC family of controllers, produced by Microchip ...
PIC: Board based on a PIC microcontroller, with native USB support and compatibility with the Arduino programming language plus an IDE built with Python and sdcc as compiler. Unduino [250] PIC: A board based on the dsPIC33FJ128MC202 microcontroller, with integrated motor control peripherals. Netduino N2 [251] Wilderness Labs [251] Yes Cortex M3 ...
An 8- or 16-bit processor may be selected over a 32-bit processor for system on a chip or microcontroller applications that require extremely low-power electronics, or are part of a mixed-signal integrated circuit with noise-sensitive on-chip analog electronics such as high-resolution analog to digital converters, or both.
The file select register (FSR) is written with the address of the desired memory operand, after which; The indirect file register (INDF) becomes an alias for the operand pointed to by the FSR. This mechanism also allows up to 256 bytes of memory to be addressed, even when the instruction set only allows 5- or 7-bit absolute addresses.
A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks. [1] They are heavily used in engineering in hardware design , electronic design , software design , and process flow diagrams .
SOIC-16 A PIC microcontroller (wide SOIC-28) in a ZIF socket. A small outline integrated circuit (SOIC) is a surface-mounted integrated circuit (IC) package which occupies an area about 30–50% less than an equivalent dual in-line package (DIP), with a typical thickness being 70% less.