Rainbow-electronics ATmega64L Manual do Utilizador descarregar pdf (Página 162)

162

ATmega16(L)

2466B–09/01

0.5M 0 0.0% 1 0.0% - - 2 -7.8% 1 -7.8% 3 -7.8%

1M--00.0%----0-7.8%1-7.8%

Max

(1)

0.5Mbps 1Mbps 691.2kbps 1.3824Mbps 921.6kbps 1.8432Mbps

1. UBRR = 0, Error = 0.0%

Table 71. Examples of UBRR Settings for Commonly Used Oscillator Frequencies (Continued)

Baud

Rate

(bps)

osc

= 16.0000 MHz f

osc

= 18.4320 MHz f

osc

= 20.0000 MHz

U2X = 0 U2X = 1 U2X = 0 U2X = 1 U2X = 0 U2X = 1

UBRR Error UBRR Error UBRR Error UBRR Error UBRR Error UBRR Error

2400 416 -0.1% 832 0.0% 479 0.0% 959 0.0% 520 0.0% 1041 0.0%

4800 207 0.2% 416 -0.1% 239 0.0% 479 0.0% 259 0.2% 520 0.0%

9600 103 0.2% 207 0.2% 119 0.0% 239 0.0% 129 0.2% 259 0.2%

14.4k 68 0.6% 138 -0.1% 79 0.0% 159 0.0% 86 -0.2% 173 -0.2%

19.2k 51 0.2% 103 0.2% 59 0.0% 119 0.0% 64 0.2% 129 0.2%

28.8k 34 -0.8% 68 0.6% 39 0.0% 79 0.0% 42 0.9% 86 -0.2%

38.4k 25 0.2% 51 0.2% 29 0.0% 59 0.0% 32 -1.4% 64 0.2%

57.6k 16 2.1% 34 -0.8% 19 0.0% 39 0.0% 21 -1.4% 42 0.9%

76.8k 12 0.2% 25 0.2% 14 0.0% 29 0.0% 15 1.7% 32 -1.4%

115.2k 8 -3.5% 16 2.1% 9 0.0% 19 0.0% 10 -1.4% 21 -1.4%

230.4k 3 8.5% 8 -3.5% 4 0.0% 9 0.0% 4 8.5% 10 -1.4%

250k 3 0.0% 7 0.0% 4 -7.8% 8 2.4% 4 0.0% 9 0.0%

0.5M 1 0.0% 3 0.0% - - 4 -7.8% - - 4 0.0%

1M00.0%10.0%--------

Max

(1)

1Mbps 2Mbps 1.152Mbps 2.304Mbps 1.25Mbps 2.5Mbps

1. UBRR = 0, Error = 0.0%

Table 70. Examples of UBRR Settings for Commonly Used Oscillator Frequencies (Continued)

Baud

Rate

(bps)

osc

= 8.0000 MHz f

osc

= 11.0592 MHz f

osc

= 14.7456 MHz

U2X = 0 U2X = 1 U2X = 0 U2X = 1 U2X = 0 U2X = 1

UBRR Error UBRR Error UBRR Error UBRR Error UBRR Error UBRR Error

1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 297 298

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