Renesas RX100 Series User Manual page 22

23.8.2 SS Function in Master Mode .................................................................................................... 691
23.8.3 SS Function in Slave Mode ...................................................................................................... 691
23.8.4 Relationship between Clock and Transmit/Receive Data ........................................................ 692
23.8.5 SCI Initialization (Simple SPI Mode) ...................................................................................... 693
23.8.6 Transmission and Reception of Serial Data (Simple SPI Mode) ............................................. 693
23.9 Bit Rate Modulation Function ........................................................................................................... 693
23.10 Extended Serial Mode Control Section: Description of Operation ................................................... 694
23.10.1 Serial Transfer Protocol ............................................................................................................ 694
23.10.2 Transmitting a Start Frame ....................................................................................................... 695
23.10.3 Receiving a Start Frame ........................................................................................................... 698
23.10.3.1 Priority Interrupt Bit ........................................................................................................ 703
23.10.4 Detection of Bus Collisions ...................................................................................................... 704
23.10.5 Digital Filter for Input on the RXDX12 Pin ............................................................................. 705
23.10.6 Bit Rate Measurement .............................................................................................................. 706
23.10.7 Selectable Timing for Sampling Data Received through RXDX12 ......................................... 707
23.10.8 Timer ........................................................................................................................................ 708
23.11 Noise Cancellation Function ............................................................................................................. 710
23.12 Interrupt Sources ................................................................................................................................ 711
23.12.1 Buffer Operations for TXI and RXI Interrupts ......................................................................... 711
23.12.2 Interrupts in Asynchronous Mode, Clock Synchronous Mode, and Simple SPI Mode ........... 711
23.12.3 Interrupts in Smart Card Interface Mode .................................................................................. 712
23.12.4 Interrupts in Simple I
23.12.5 Interrupt Requests from the Extended Serial Mode Control Section ....................................... 714
23.13 Usage Notes ....................................................................................................................................... 715
23.13.1 Setting the Module Stop Function ............................................................................................ 715
23.13.2 Break Detection and Processing ............................................................................................... 715
23.13.3 Mark State and Sending Breaks ................................................................................................ 715
23.13.4 Receive Error Flags and Transmit Operations
(Clock Synchronous Mode and Simple SPI Mode) .................................................................. 715
23.13.5 Writing Data to the TDR Register ............................................................................................ 715
23.13.6 Restrictions on Clock Synchronous Transmission
(Clock Synchronous Mode and Simple SPI Mode) .................................................................. 716
23.13.7 Restrictions on Using DTC ....................................................................................................... 717
23.13.8 Notes on Starting Transfer ........................................................................................................ 717
23.13.9 SCI Operations during Low Power Consumption State ........................................................... 717
23.13.10 External Clock Input in Clock Synchronous Mode and Simple SPI Mode .............................. 720
23.13.11 Limitations on Simple SPI Mode ............................................................................................. 721
23.13.12 Limitation 1 on Usage of the Extended Serial Mode Control Section ..................................... 722
23.13.13 Limitation 2 on Usage of the Extended Serial Mode Control Section ..................................... 722
23.13.14 Note on Transmit Enable Bit (TE Bit) ...................................................................................... 723
23.13.15 Note on Stopping Reception When Using the RTS Function in Asynchronous Mode ............ 723
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C Mode ................................................................................................. 713