ATmega128 datasheet(193/386 Pages) ATMEL

Datenblatt-Suchmaschine für elektronische Bauteile

ATmega128 Datenblatt(PDF) 193 Page - ATMEL Corporation

Teilenummer	ATmega128

Bauteilbeschribung	8-bit Microcontroller with 128K Bytes In-System Programmable Flash

PDF	386 Pages

Scroll/Zoom	100%

Hersteller	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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193 / 386 page

193

2467S–AVR–07/09

ATmega128

• Bit 15:12 – Reserved Bits

These bits are reserved for future use. For compatibility with future devices, these bit must be

written to zero when UBRRnH is written.

• Bit 11:0 – UBRRn11:0: USARTn Baud Rate Register

This is a 12-bit register which contains the USARTn baud rate. The UBRRnH contains the four

most significant bits, and the UBRRnL contains the eight least significant bits of the USARTn

baud rate. Ongoing transmissions by the transmitter and receiver will be corrupted if the baud

rate is changed. Writing UBRRnL will trigger an immediate update of the baud rate prescaler.

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