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  2. In-system programming - Wikipedia

    en.wikipedia.org/wiki/In-system_programming

    However, there is room for confusion. The PIC data sheets show an inverted socket and do not provide a pictorial view of pinouts so it is unclear what side of the socket Pin 1 is located on. The illustration provided here is untested but uses the phone industry standard pinout (the RJ11 plug/socket was original developed for wired desktop phones).

  3. Serial Peripheral Interface - Wikipedia

    en.wikipedia.org/wiki/Serial_Peripheral_Interface

    SCLK CPOL=1 is a clock which idles at the logical high voltage. CPHA represents the phase of each data bit's transmission cycle relative to SCLK. For CPHA=0: The first data bit is output immediately when CS activates. Subsequent bits are output when SCLK transitions to its idle voltage level. Sampling occurs when SCLK transitions from its idle ...

  4. AVR microcontrollers - Wikipedia

    en.wikipedia.org/wiki/AVR_microcontrollers

    Among the first of the AVR line was the AT90S8515, which in a 40-pin DIP package has the same pinout as an 8051 microcontroller, including the external multiplexed address and data bus. The polarity of the RESET line was opposite (8051's having an active-high RESET, while the AVR has an active-low RESET ), but other than that the pinout was ...

  5. Atmel AVR instruction set - Wikipedia

    en.wikipedia.org/wiki/Atmel_AVR_instruction_set

    The Atmel AVR instruction set is the machine language for the Atmel AVR, a modified Harvard architecture 8-bit RISC single chip microcontroller which was developed by Atmel in 1996. The AVR was one of the first microcontroller families to use on-chip flash memory for program storage.

  6. ATtiny microcontroller comparison chart - Wikipedia

    en.wikipedia.org/wiki/ATtiny_microcontroller...

    ATtiny (also known as TinyAVR) is a subfamily of the popular 8-bit AVR microcontrollers, which typically has fewer features, fewer I/O pins, and less memory than other AVR series chips. The first members of this family were released in 1999 by Atmel (later acquired by Microchip Technology in 2016).

  7. ATmega328 - Wikipedia

    en.wikipedia.org/wiki/ATmega328

    ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.

  8. Universal asynchronous receiver-transmitter - Wikipedia

    en.wikipedia.org/wiki/Universal_asynchronous...

    Parity bit: if a parity bit is used, it would be placed after all of the data bits. The parity bit is a way for the receiving UART to tell if any data has changed during transmission. Stop (logic high (1)): the next one or two bits are always in the mark (logic high, i.e., 1) condition and called the stop bit(s). They signal to the receiver ...

  9. GM 4T80 transmission - Wikipedia

    en.wikipedia.org/wiki/GM_4T80_transmission

    Transmission broadcast codes in 2005 for the ECCC transmission are 5ABN and 5MMN. [1] The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, and at the time exclusively the Cadillac Northstar engine. [3] It was designed with extreme power handling capabilities at the time.