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AT83C5111 데이터시트(PDF) 29 Page - ATMEL Corporation |
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AT83C5111 데이터시트(HTML) 29 Page - ATMEL Corporation |
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29 / 86 page ![]() 29 AT8xC5111 4190A–8051–11/02 for UART: Example of computed value when X2 = 1, SMOD1 = 1, SPD = 1 Example of computed value when X2 = 0, SMOD1 = 0, SPD = 0 The baud rate generator can be used for mode 1 or 3 (See Figure 10), but also for mode 0 for both UARTs, thanks to the bit SRC located in BDRCON register (see Table 27). Baud Rates F XTAL = 16.384 MHz F XTAL = 24 MHz BRL Error (%) BRL Error (%) 115200 247 1.23 243 0.16 57600 238 1.23 230 0.16 38400 229 1.23 217 0.16 28800 220 1.23 204 0.16 19200 203 0.63 178 0.16 9600 149 0.31 100 0.16 4800 43 1.23 - - Baud Rates FOSC = 16.384 MHz FOSC = 24 MHz BRL Error (%) BRL Error (%) 4800 247 1.23 243 0.16 2400 238 1.23 230 0.16 1200 220 1.23 202 3.55 600 185 0.16 152 0.16 Baud_Rate = 2SMOD1 x 2X2 x F XTAL 2 x 2 x 6(1-SPD) x 16 x [256 - (BRL)] (BRL) = 256 - 2 SMOD1 x 2X2 x F XTAL 2 x 2 x 6 (1-SPD) x 16 x Baud_Rate |
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