Q$.1$ Set. $($A$)$

$($a$)$ Give two advantages of CAN communication over UART communication in setting up a communication network in a car. If the UART data of $031$ is being transmitted what should be the parity bit if we decide to work with even parity.

$2$

$($b$)$ Discuss two methods of addressing used in communication networks with suitable examples.

$2$

$($c$)$ In the CAN channel communicating at $250kbps$ there are three nodes competing for arbitration and their IDs are $01FC,0321$ and $01F4.$ Clearly show the distinct time at which two of the nodes will lose arbitration if the CAN channel starts with a Start bit followed by the ID and sampling time of the bit occurs at $65\%$ of each bit time. Assume $t=0$ starts with the Start bit edge going from recessive to dominant state.

$2$