“Special input/output”的意思、由来-开放百科全书

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Special input/output

释义

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References

{{unreliable sources|date=February 2012}}Special input/output (Special I/O or SIO) are inputs and/or outputs of a microcontroller designated to perform specialized functions or have specialized features.^[1]

Specialized functions can include:

Hardware interrupts,
analog input or output
PWM output
Serial communication, such as UART, USART, SPI bus, or SerDes.
External reset
Switch debounce
Input pull-up (or -down) resistors
open collector output

Some kinds of special I/O functions can sometimes be emulated with general-purpose input/output and bit banging software.

References

1. ^Special Microcontroller Functions, retrieved 29 October 2011

2 : Computer buses|Integrated circuits

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References