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H8S2245 데이터시트(PDF) 505 Page - Renesas Technology Corp |
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H8S2245 데이터시트(HTML) 505 Page - Renesas Technology Corp |
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505 / 818 page ![]() Section 12 Serial Communication Interface (SCI) Rev.3.00 Mar. 26, 2007 Page 463 of 772 REJ09B0355-0300 Table 12.12 SCI Interrupt Sources Channel Interrupt Source Description DTC Activation Priority* 0 ERI Interrupt due to receive error (ORER, FER, or PER) Not possible High RXI Interrupt due to receive data full state (RDRF) Possible TXI Interrupt due to transmit data empty state (TDRE) Possible TEI Interrupt due to transmission end (TEND) Not possible 1 ERI Interrupt due to receive error (ORER, FER, or PER) Not possible RXI Interrupt due to receive data full state (RDRF) Possible TXI Interrupt due to transmit data empty state (TDRE) Possible TEI Interrupt due to transmission end (TEND) Not possible 2 ERI Interrupt due to receive error (ORER, FER, or PER) Not possible RXI Interrupt due to receive data full state (RDRF) Possible TXI Interrupt due to transmit data empty state (TDRE) Possible TEI Interrupt due to transmission end (TEND) Not possible Low Note: * This table shows the initial state immediately after a reset. Relative priorities among channels can be changed by means of ICR. A TEI interrupt is requested when the TEND flag is set to 1 while the TEIE bit is set to 1. The TEND flag is cleared at the same time as the TDRE flag. Consequently, if a TEI interrupt and a TXI interrupt are requested simultaneously, the TXI interrupt may be accepted first, with the result that the TDRE and TEND flags are cleared. Note that the TEI interrupt will not be accepted in this case. |
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