AT90PWM2 datasheet(211/361 Pages) ATMEL

tên linh kiện	AT90PWM2

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

PDF	361 Pages

Scroll/Zoom	100%

nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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211

4317J–AVR–08/10

AT90PWM2/3/2B/3B

•

Asynchonous frames

–

Standard bit level encoded

–

Manchester bit encoded

•

Synchronous frames

–

In this mode only the Standard bit level encoded is available

19.3

Serial Frames

A serial frame is defined to be one character of data bits with synchronization bits (start and stop

bits), and optionally a parity bit for error checking.

19.3.1

Frame Formats

The EUSART allows to receive and transmit serial frame with the following format:

•

1 start bit

•

5, 6, 7, 8, 9, 13, 14,15,16,17 data bits

•

data bits and start bit level encoded or Manchester encoded

•

data transmition MSB or LSB first (bit ordering)

•

no, even or odd parity bit

•

1 or 2 stop bits:

–

Stop bits insertion for transmition

–

Stop bits value read access in reception

PARITY

GENERATOR

UBRR[H:L]

UDR

(Transmit)

EUDR

(Transmit)

UDR

(Receive)

EUDR

(Receive)

UCSRA

UCSRB

UCSRC

EUCSRA

EUCSRB

EUCSRC

BAUD RATE GENERATOR

TRANSMIT SHIFT REGISTER

RECEIVE SHIFT REGISTER

RxD

TxD

CONTROL

XCK

DATA

RECOVERY

CLOCK

RECOVERY

CONTROL

PARITY

CHECKER

MANCHESTER

ENCODER

CLKio

SYNC LOGIC

Clock Generator

Transmitter

Receiver

MANCHESTER

DECODER

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