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SN250 데이터시트(PDF) 54 Page - STMicroelectronics |
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SN250 데이터시트(HTML) 54 Page - STMicroelectronics |
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54 / 130 page ![]() Functional description—application modules SN250 54/130 7.2.4 Registers SC1_MODE [0x44AA] SC1_DATA [0x449E] SC1_UARTPER [0x44B4] 15 0-R 14 0-R 13 0-R 12 0-R 11 0-R 10 0-R 9 0-R 8 0-R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SC1_MODE 0-R 7 0-R 6 0-R 5 0-R 4 0-R 3 0-R 2 0-RW 1 0-RW 0 SC1_MODE [1:0] SC1 Mode: 0 = disabled; 1 = UART mode; 2 = SPI mode; 3 = I2C mode. Note To change between modes, the previous mode must be disabled first. 15 0-R 14 0-R 13 0-R 12 0-R 11 0-R 10 0-R 9 0-R 8 0-R 0 0 0 0 0 0 0 0 SC1_DATA 0-RW 7 0-RW 6 0-RW 5 0-RW 4 0-RW 3 0-RW 2 0-RW 1 0-RW 0 SC1_DATA [7:0] Transmit and receive data register. Writing to this register pushes a byte onto the transmit FIFO. Reading from this register pulls a byte from the receive FIFO. 15 0-RW 14 0-RW 13 0-RW 12 0-RW 11 0-RW 10 0-RW 9 0-RW 8 0-RW SC1_UARTPER SC1_UARTPER 0-RW 7 0-RW 6 0-RW 5 0-RW 4 0-RW 3 0-RW 2 0-RW 1 0-RW 0 SC1_UARTPER [15:0] The baud rate period (N) of the clock rate as seen in the equation: Rate 24MHz 2N 0.5 F ⋅ () + () ⋅ -------------------------------------------- = |
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