fbTimeout (BYTE)

      Timeout flag.

      Has the following bits:

      Bit 0

        Enable Write Infinite Timeout processing
      Bits 1-2
        Read Timeout processing. Has the following:

          Bit 2

            Bit 1 Description
          0
            1 Normal Read Timeout processing
          1
            0 Wait-For-Something, Read Timeout processing
          1
            1 No-Wait, Read Timeout processing
          Bits 3-4
            Extended Hardware Buffering. Has the following:

              Bit 4

                Bit 3 Description
              0
                0 Not supported
              0
                1 Extended Hardware Buffering Disabled
              1
                0 Extended Hardware Buffering Enabled
              1
                1 Automatic Protocol Override
              Bits 5-6
                Receive Trigger Level. Has the following:

                  Bit 6

                    Bit 5 Description
                  0
                    0 1 character
                  0
                    1 4 characters
                  1
                    0 8 characters
                  1
                    1 14 characters
                  Bit 7
                    Transmit Buffer Load Count

                  • character 1 =
                      16 characters
                    See ASYNC_SETDCBINFO for field definitions.

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