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R8C/20 Datasheet(PDF) 374 Page - Renesas Technology Corp |
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R8C/20 Datasheet(HTML) 374 Page - Renesas Technology Corp |
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374 / 501 page  R8C/20 Group, R8C/21 Group 17. Hardware LIN Rev.2.00 Aug 27, 2008 Page 358 of 458 REJ09B0250-0200 17.5 Interrupt Requests There are four interrupt requests that are generated by the hardware LIN: Synch Break detection, Synch Break generation completed, Synch Field measurement, and bus collision detection. These interrupts are shared with the timer RA interrupt. Table 17.2 lists the Interrupt Requests of Hardware LIN. Table 17.2 Interrupt Requests of Hardware LIN Interrupt Request Status Flag Cause of Interrupt Synch Break Detection SBDCT Generated when timer RA has underflowed after measuring the low level duration of RXD0 input, or when a low-level signal is input for a duration longer than the Synch Break period during communication. Synch Break Generation Completed Generated when timer RA has completed outputting a low- level signal to TXD0 for set period. Synch Field Measurement SFDCT Generated when measurement for 8 bits of the Synch Field by timer RA is completed. Bus Collision Detection BCDCT Generated when the RXD0 input and TXD0 output values differed at data latch timing while UART0 is enabled for transmission. |
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