Datasheet

195

7810C–AVR–10/12

Atmel ATmega328P [Preliminary]

Table 19-12. Examples of UBRRn Settings for Commonly Used Oscillator Frequencies

(Continued)

Baud Rate (bps)

osc

= 16.0000 MHz

U2Xn = 0 U2Xn = 1

UBRRn Error UBRRn Error

2400 416 -0.1% 832 0.0%

4800 207 0.2% 416 -0.1%

9600 103 0.2% 207 0.2%

14.4k 68 0.6% 138 -0.1%

19.2k 51 0.2% 103 0.2%

28.8k 34 -0.8% 68 0.6%

38.4k 25 0.2% 51 0.2%

57.6k 16 2.1% 34 -0.8%

76.8k 12 0.2% 25 0.2%

115.2k 8 -3.5% 16 2.1%

230.4k 3 8.5% 8 -3.5%

250k 3 0.0% 7 0.0%

0.5M 1 0.0% 3 0.0%

1M 0 0.0% 1 0.0%

Max.

(1)

1. UBRRn = 0, Error = 0.0%

1 Mbps 2 Mbps