Flags1

Has the following bits:

Bits 0-1

DTR Control Mode. See Note 1.

Bit 1

Bit 0 Description
0
0 Disable
0
1 Enable
1
0 Input handshaking
1
1 Invalid input, resulting in a general failure error.
Bit 2
Reserved. Set to 0.
Bit 3
Enable output handshaking using CTS. See Note 3.
Bit 4
Enable output handshaking using DSR. See Note 3.
Bit 5
Enable output handshaking using DCD. See Note 3.
Bit 6
Enable input sensitivity using DSR. See Note 4.
Bit 7
Reserved. Set to 0.

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