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数据搜索系统，热门电子元器件搜索 |
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HD6417618 数据表(PDF) 406 Page - Renesas Technology Corp |
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HD6417618 数据表(HTML) 406 Page - Renesas Technology Corp |
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406 / 646 page  Section 14 Serial Communication Interface with FIFO (SCIF) Rev. 6.00 Jun. 12, 2007 Page 374 of 610 REJ09B0131-0600 Figure 14.9 shows an example of the operation for reception. 1 0 D0 D1 D7 0/1 1 0 D0 D1 D7 0/1 0/1 0 RDF FER Serial data Start bit Data Parity bit Stop bit Start bit Data Parity bit Stop bit RXI interrupt request One frame Data read and RDF flag read as 1 then cleared to 0 by RXI interrupt handler ERI interrupt request generated by receive error Figure 14.9 Example of SCIF Receive Operation (8-Bit Data, Parity, One Stop Bit) 5. When modem control is enabled, the RTS signal is output depending on the empty status of SCFRDR. When RTS is 0, reception is possible. When RTS is 1, this indicates that the SCFRDR is full and no extra data can be received. (Only for channel 0 and channel 1) Figure 14.10 shows an example of the operation when modem control is used. D0 D1 D2 D7 0/1 D0 D1 D7 0/1 10 0 RTS Serial data RxD Start bit Parity bit Stop bit Start bit Figure 14.10 Example of Operation Using Modem Control ( RTS) |
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