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  2. Programmable interval timer - Wikipedia

    en.wikipedia.org/wiki/Programmable_Interval_Timer

    In computing and in embedded systems, a programmable interval timer (PIT) is a counter that generates an output signal when it reaches a programmed count. The output signal may trigger an interrupt .

  3. List of Arduino boards and compatible systems - Wikipedia

    en.wikipedia.org/wiki/List_of_Arduino_boards_and...

    Optional CIC61508 safety monitor. Arduino IDE supported via add-in, plus Eclipse-based tools with multicore debugger. MBZ Pro WiFi Atmega328P-PU MaxBlitz: MBZ Pro Mega is an Arduino compatible stand-alone board with a prototyping area and built-in Wi-Fi. Featuring a compact design, it helps to shrink Arduino projects and make it permanent.

  4. Arduino Uno - Wikipedia

    en.wikipedia.org/wiki/Arduino_UNO

    The word "uno" means "one" in Italian and was chosen to mark a major redesign of the Arduino hardware and software. [7] The Uno board was the successor of the Duemilanove release and was the 9th version in a series of USB-based Arduino boards. [8] Version 1.0 of the Arduino IDE for the Arduino Uno board has now evolved to newer releases. [4]

  5. Programmable interrupt controller - Wikipedia

    en.wikipedia.org/wiki/Programmable_interrupt...

    The IRR specifies which interrupts are pending acknowledgement, and is typically a symbolic register which can not be directly accessed. The ISR register specifies which interrupts have been acknowledged, but are still waiting for an end of interrupt (EOI). The IMR specifies which interrupts are to be ignored and not acknowledged.

  6. MOS Technology 6522 - Wikipedia

    en.wikipedia.org/wiki/MOS_Technology_6522

    The VIA provides two 16-bit timer/counters. Each can be used in one-shot "interval timer" mode; timer 1 can also be used in "free-running" (divider/square wave) mode, in which the timer is automatically reloaded with the initial count when it reaches zero, and timer 2 can also be used in "pulse counting" mode, in which the timer will count the high-to-low state transitions of pin PB6 (the 7th ...

  7. AVR microcontrollers - Wikipedia

    en.wikipedia.org/wiki/AVR_microcontrollers

    The ATmega1280 and ATmega2560, with more pinout and memory capabilities, have also been employed to develop the Arduino Mega platform. Arduino boards can be used with its language and IDE, or with more conventional programming environments (C, assembler, etc.) as just standardized and widely available AVR platforms.

  8. Interrupt handler - Wikipedia

    en.wikipedia.org/wiki/Interrupt_handler

    In computer systems programming, an interrupt handler, also known as an interrupt service routine or ISR, is a special block of code associated with a specific interrupt condition. Interrupt handlers are initiated by hardware interrupts, software interrupt instructions, or software exceptions , and are used for implementing device drivers or ...

  9. Interrupt priority level - Wikipedia

    en.wikipedia.org/wiki/Interrupt_priority_level

    The interrupt priority level (IPL) is a part of the current system interrupt state, which indicates the interrupt requests that will currently be accepted. The IPL may be indicated in hardware by the registers in a programmable interrupt controller , or in software by a bitmask or integer value and source code of threads.