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R5F72115D160FPV Datasheet(PDF) 721 Page - Renesas Technology Corp |
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R5F72115D160FPV Datasheet(HTML) 721 Page - Renesas Technology Corp |
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721 / 1228 page ![]() Section 15 Serial Communication Interface with FIFO (SCIF) Rev. 2.00 May. 08, 2008 Page 697 of 1200 REJ09B0344-0200 Bit Bit Name Initial Value R/W Description 15 to 1 — All 0 R Reserved These bits are always read as 0. The write value should always be 0. 0 ORER 0 R/(W)* Overrun Error Indicates the occurrence of an overrun error. 0: Receiving is in progress or has ended normally* 1 [Clearing conditions] • ORER is cleared to 0 when the chip is a power-on reset • ORER is cleared to 0 when 0 is written after 1 is read from ORER. 1: An overrun error has occurred* 2 [Setting condition] • ORER is set to 1 when the next serial receiving is finished while the receive FIFO is full of 16-byte receive data. Notes: 1. Clearing the RE bit to 0 in SCSCR does not affect the ORER bit, which retains its previous value. 2. The receive FIFO data register (SCFRDR) retains the data before an overrun error has occurred, and the next received data is discarded. When the ORER bit is set to 1, the SCIF cannot continue the next serial reception. Note: * Only 0 can be written to clear the flag after 1 is read. |
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