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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M16C/29 датащи(PDF) 217 Page - Renesas Technology Corp |
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M16C/29 датащи(HTML) 217 Page - Renesas Technology Corp |
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217 / 499 page  14. Serial I/O p u o r G 9 2 / C 6 1 M page 193 8 5 4 f o 7 0 0 2 , 0 3 .r a M 2 1 . 1 . v e R 2 1 1 0 - 1 0 1 0 B 9 0 J E R (1) When the UFORM bit in the UiC0 register is set to 0 (LSB first) (2) When the UFORM bit in the UiC0 register is set to 1 (MSB first) NOTE: 1. This applies to the case where the CKPOL bit in the UiC0 register is set to 0 (transmit data output at the falling edge and the receive data taken in at the rising edge of the transfer clock), the UiLCH bit in the UiC1 register is set to 0 (no reverse), the STPS bit in the UiMR register is set to 0 (1 stop bit) and the PRYE bit in the UiMR register is set to 1 (parity enabled). D1 D2 D3 D4 D5 D6 SP D0 D1 D2 D3 D4 D5 D6 SP D0 TXDi RXDi CLKi D6 D5 D4 D3 D2 D1 D0 D7 TXDi RXDi CLKi ST ST D7 P D7 P SP SP ST ST P P D6 D5 D4 D3 D2 D1 D0 D7 ST : Start bit P : Parity bit SP : Stop bit i = 0 to 2 14.1.2.2 Counter Measure for Communication Error If a communication error occurs while transmitting or receiving in UART mode, follow the procedure below. • Resetting the UiRB register (i=0 to 2) (1) Set the RE bit in the UiC1 register to 0 (reception disabled) (2) Set the RE bit in the UiC1 register to 1 (reception enabled) • Resetting the UiTB register (i=0 to 2) (1) Set bits SMD2 to SMD0 in UiMR register 0002 (Serial I/O disabled) (2) Set bits SMD2 to SMD0 in UiMR register 0012, 1012, 1102 (3) 1 is written to TE bit in the UiC1 register (reception enabled), regardless of the TE bit 14.1.2.3 LSB First/MSB First Select Function As shown in Figure 14.18, use the UFORM bit in the UiC0 register to select the transfer format. This function is valid when transfer data is 8 bits long. Figure 14.18 Transfer Format |
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