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Programmable Interrupt Controller

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Programmable Interrupt Controller

See PIC.

(integrated circuit)

Programmable Interrupt Controller - PIC A special-purpose integrated circuit that functions as an overall manager in an interrupt driven system. It accepts requests from the peripheral equipment, determines which of the incoming requests is of the highest priority, ascertains whether the incoming request has a higher priority value than the level currently being serviced, and issues an interrupt to the CPU based on this determination.

PICs typically have eight interrupt lines, and two PICs are often cascaded to provide 15 available interrupt lines.

See also: Advanced Programmable Interrupt Controller.

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82489DX
8259A
Advanced Programmable Interrupt Controller

These include four DMA channels, multiple timers, a programmable interrupt controller, a memory refresh unit, programmable DRAM controller, variable-rate asynchronous serial ports, flexible chip select unit, and a peripherals control block with advanced power management.

CAST RELEASES 80186-COMPATIBLE PROCESSOR CORE by EDP Weekly's IT Monitor

These include four DMA channels, multiple timers, a programmable interrupt controller, a memory refresh unit, programmable DRAM controller, variable-rate asynchronous serial ports, flexible chip select unit, and a peripherals control block with advanced power management.

CAST Releases 80186-Compatible Processor Core; Fast Version of ... by Business Wire

DriveWay ME-MPC8240 will fully support the following MPC8240 on-chip peripherals: PCI host or agent controller, two-channel DMA controller, message unit with intelligent I/O controller, one I2C interface, and an embedded programmable interrupt controller which includes four programmable timers.

Aisys' New Embedded System Design Automation Tool Improves User ... by Business Wire

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