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UART / USART ์ฐจ์ด์  (feat. ๋™๊ธฐ, ๋น„๋™๊ธฐ)

AB87 2020. 5. 15. 16:18
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UART

(Universal โ€‹Asynchronous Receiver and Transmitter)

๋ฒ”์šฉ ๋น„๋™๊ธฐ ์†ก์ˆ˜์‹ 

๋™๊ธฐ ์‹ ํ˜ธ๊ฐ€ ์—†์Œ

์†ก์ˆ˜์‹  ์–‘์ธก์ด ํ†ต์‹  ์†๋„๋ฅผ ๋งž์ถฐ ๋™๊ธฐ ์‹ ํ˜ธ๋ฅผ ๋Œ€์ฒด

โ€‹

USART

(Universal Synchronous/Asynchronous Receiver and Transmitter)

๋ฒ”์šฉ ๋™๊ธฐ/๋น„๋™๊ธฐ ์†ก์ˆ˜์‹ 

UART ํ†ต์‹ ์— ๋™๊ธฐ์‹ ์†ก์ˆ˜์‹  ํฌํ•จ

โ€‹

๋™๊ธฐ์‹(Synchronous) ์ง๋ ฌ ํ†ต์‹ 

ํด๋Ÿญ์„ ์ด์šฉํ•˜์—ฌ ๋™๊ธฐํ™”

๊ณ ์† ํ†ต์‹  ๊ฐ€๋Šฅ

ํด๋Ÿญ์„ ์„ ํ•˜๋‚˜ ์ถ”๊ฐ€ํ•ด์•ผ ํ•˜๋Š” ๋‹จ์ 

โ€‹

๋น„๋™๊ธฐ์‹(Asynchronous) ์ง๋ ฌ ํ†ต์‹ 

๋™๊ธฐ ์‹ ํ˜ธ๊ฐ€ ์—†์œผ๋ฏ€๋กœ ์‹œ์ž‘์‹ ํ˜ธ๋ฅผ ๋ถ™์—ฌ์ค˜์•ผ ํ•˜๋Š” ๋‹จ์ 

์ฒ˜๋ฆฌ ์†๋„๊ฐ€ ๋Š๋ฆผ

์™€์ด์–ด ์ˆ˜๊ฐ€ ์ค„์–ด ๋“ฌ(CLK Line)

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