Arbitration process:
Each device compares the pattern that appears on the arbitration lines to its own ID,
starting with MSB.
If it detects a difference, it transmits 0 on the arbitration lines for that and all lower
bit positions.
Device A compares its ID 5 with a pattern 0101 to pattern 0111.
It detects a difference at bit position 1, as a result, it transmits a pattern 0100 on the
arbitration lines.
The pattern that appears on the arbitration lines is the logical OR of 0100 and 0110,
which is 0110.
This pattern is the same as the device ID of B, as a result B has won the arbitration
Arbitration process:
Each device compares the pattern that appears on the arbitration lines to its own ID,
starting with MSB.
If it detects a difference, it transmits 0 on the arbitration lines for that and all lower
bit positions.
Device A compares its ID 5 with a pattern 0101 to pattern 0111.
It detects a difference at bit position 1, as a result, it transmits a pattern 0100 on the
arbitration lines.
The pattern that appears on the arbitration lines is the logical OR of 0100 and 0110,
which is 0110.
This pattern is the same as the device ID of B, as a result B has won the arbitration
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