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R8C/20 Datasheet(PDF) 282 Page - Renesas Technology Corp |
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R8C/20 Datasheet(HTML) 282 Page - Renesas Technology Corp |
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282 / 501 page ![]() R8C/20 Group, R8C/21 Group 15. Serial Interface Rev.2.00 Aug 27, 2008 Page 266 of 458 REJ09B0250-0200 Figure 15.2 UARTi (i = 0 or 1) Transmit/Receive Unit RXDi 1SP 2SP SP SP PAR PRYE = 0 PAR disabled PAR enabled PRYE = 1 UART UART (9 bits) D7 D6 D5 D4 D3 D2 D1 D0 UARTi receive register UiRB register 0 0 0 0000 D8 MSB/LSB conversion circuit Data bus high-order bits Data bus low-order bits D7 D6 D5 D4 D3 D2 D1 D0 UiTB register D8 TXDi 1SP 2SP SP SP PAR UARTi transmit register 0 i = 0 or 1 SP: Stop bit PAR: Parity bit NOTE: 1. Clock synchronous type is provide in UART0 only. UART (7 bits) UART (8 bits) Clock synchronous type Clock synchronous type UART (7 bits) Clock synchronous type UART (7 bits) Clock synchronous type UART (8 bits) UART (9 bits) UART (7 bits) UART (8 bits) Clock synchronous type UART (9 bits) UART PRYE = 1 PAR enabled PAR disabled PRYE = 0 Clock synchronous type MSB/LSB conversion circuit UART (8 bits) UART (9 bits) |
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