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8: 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) ? _
T
he 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 8-1. Interface Mode Options
I/F Mode Option 7 6 5 4 3 2 1 0
RS-232C
(1)
0
0
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.
T
he following table demonstrates how to build some common Interface Mode settings:
Table 8-2. 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
I/F Mode
Additional settings for RS-422 4-wire and RS-485 2-wire are available on the
Micro125. However, this feature is only supported on channel 1.
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.
Micro125 User Guide 42