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AT697F датащи(PDF) 99 Page - ATMEL Corporation |
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AT697F датащи(HTML) 99 Page - ATMEL Corporation |
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99 / 155 page ![]() AT697F ADVANCE INFORMATION 99 7703C–AERO–6/09 UARTs Registers Table 68. UART 1 Data Register - UAD1 Address = 0x80000070 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 reserved rtd1[7:0] r/w r/w xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Bit Number Mnemonic Description 7..0 rtd1[7:0] Received or Transmitted Data of UART1 rtd1 field has 2 meanings: • A write access enables the sending of the written 8-bit data on UART 1. • A read access provides the received 8-bit data on UART1. Table 69. UART 1 Status Register - UAS1 Address = 0x80000074 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 reserved r/w r/w xxxx xxxx xxxx xxxx xxxx xxxx x 0 0 0 0 1 1 0 Bit Number Mnemonic Description 6 fe1 Framing error Indicates that a framing error was detected. 5 pe1 Parity error indicates that a parity error was detected. 4 ov1 Overrun Indicates that one or more character have been lost due to overrun. 3 br1 Break received Indicates that a BREAK has been received. 2 th1 Transmitter hold register empty Indicates that the transmitter hold register is empty. 1 ts1 Transmitter shift register empty Indicates that the transmitter shift register is empty. 0 dr 1 Data ready Indicates that new data is available in the receiver holding register. Table 70. UART 1 Control Register - UAC1 Address = 0x80000078 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 reserved r/w r/w xxxx xxxx xxxx xxxx xxxx xxx 0 x 0 x x x x 0 0 |
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