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SN250 Datasheet(PDF) 79 Page - STMicroelectronics |
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SN250 Datasheet(HTML) 79 Page - STMicroelectronics |
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79 / 130 page  SN250 Functional description—application modules 79/130 SC2_SPISTAT [0x4420] SC2_I2CCTRL1 [0x4426] 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 SC_ SPITXIDLE SC_ SPITXFREE SC_ SPIRXVAL SC_ SPIRXOVF 0-R 7 0-R 6 0-R 5 0-R 4 0-R 3 0-R 2 0-R 1 0-R 0 SC_SPITXIDLE [3] This bit is set when the transmit FIFO is empty and the transmitter is idle. SC_SPITXFREE [2] This bit is set when the transmit FIFO is ready to accept at least one byte. SC_SPIRXVAL [1] This bit is set when the receive FIFO contains at least one byte. SC_SPIRXOVF [0] This bit is set when the receive FIFO has been overrun. This bit clears when the data register (SC2_DATA) is read. 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 SC_ I2CSTOP SC_ I2CSTART SC_ I2CSEND SC_ I2CRECV 0-R 7 0-R 6 0-R 5 0-R 4 0-RW 3 0-RW 2 0-RW 1 0-RW 0 SC_I2CSTOP [3] Setting this bit sends the STOP command. It autoclears when the command completes. SC_I2CSTART [2] Setting this bit sends the START or repeated START command. It autoclears when the command completes. SC_I2CSEND [1] Setting this bit transmits a byte. It autoclears when the command completes. SC_I2CRECV [0] Setting this bit receives a byte. It autoclears when the command completes. |
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