DCBINFO Field - fbTimeout

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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