Chapter 9: Setup Mode: Channel Configuration

I/F (Interface) Mode

The Interface (I/F) Mode is a bit-coded byte entered in hexadecimal notation.

I/F Mode (4C) ? _

The following table displays available I/F Mode options.

Note: All bit positions in the table that are blank represent “don’t care” bits for that particular option, which can be set to either a 0 or 1 value.

Table 9-1. Interface Mode Options

I/F Mode Option

7

6

5

4

3

2

1

0

RS-232C (1)

 

 

 

 

 

0

0

RS-422/485 4-wire

 

 

 

 

 

0

1

 

 

 

 

 

 

 

 

RS-485 2-wire

 

 

 

 

 

1

1

 

 

 

 

 

 

 

 

7 Bit

 

 

 

1

0

 

 

 

 

 

 

 

 

 

 

8 Bit

 

 

 

1

1

 

 

 

 

 

 

 

 

 

 

No Parity

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

Even Parity

 

1

1

 

 

 

 

 

 

 

 

 

 

 

 

Odd Parity

 

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

1 stop bit

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 stop bits(1)

1

1

 

 

 

 

 

 

(1)2 stop bits are implemented by the software. This might influence performance.

The following table demonstrates how to build some common Interface Mode settings.

Table 9-2. Common Interface Mode Settings

Common I/F Mode Setting

 

Binary

 

Hex

RS-232C,

8-bit, No Parity, 1 stop bit

0100 1100

 

4C

 

 

 

 

 

RS-232C,

7-bit, Even Parity, 1 stop bit

0111 1000

 

78

 

 

 

 

RS-485 2-wire, 8-bit, No Parity, 1 stop bit

0100 1111

 

4F

 

 

 

 

RS-422, 8-bit, Odd Parity, 1 stop bit

0101 1101

 

5D

 

 

 

 

 

 

XPress DR+ User Guide

70

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Lantronix XPress DR+ Interface Mode, Setup Mode Channel Configuration, Mode Option, Common I/F Mode Setting Binary Hex