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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8S/2218 数据表(PDF) 489 Page - Renesas Technology Corp |
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H8S/2218 数据表(HTML) 489 Page - Renesas Technology Corp |
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489 / 750 page  Section 12 Serial Communication Interface Rev.6.00 Jun. 03, 2008 Page 441 of 698 REJ09B0074-0600 12.9.2 Interrupts in Smart Card Interface Mode Table 12.13 shows the interrupt sources in Smart Card interface mode. The transmit end interrupt (TEI) request cannot be used in this mode. Note: In case of block transfer mode, see section 12.9.1, Interrupts in Normal Serial Communication Interface Mode. Table 12.13 Interrupt Sources in Smart Card Interface Mode Channel Name Interrupt Source Interrupt Flag DMAC Activation Priority* ERI0 Receive Error, detection ORER, PER, ERS Not possible High RXI0 Receive Data Full RDRF Possible 0 TXI0 Transmit Data Empty TEND Possible 2 ERI2 Receive Error, detection ORER, PER, ERS Not possible RXI2 Receive Data Full RDRF Not possible TXI2 Transmit Data Empty TEND Not possible Low Note: * Indicates the initial state immediately after a reset. Priorities in channels can be changed by the interrupt controller. 12.10 Usage Notes 12.10.1 Module Stop Mode Setting SCI operation can be disabled or enabled using the module stop control register. The initial setting is for SCI operation to be halted. Register access is enabled by clearing module stop mode. For details, refer to section 20, Power-Down Modes. 12.10.2 Break Detection and Processing (Asynchronous Mode Only) When framing error detection is performed, a break can be detected by reading the RxD pin value directly. In a break, the input from the RxD pin becomes all 0s, setting the FER flag, and possibly the PER flag. Note that as the SCI continues the receive operation after receiving a break, even if the FER flag is cleared to 0, it will be set to 1 again. |
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