Saved Bookmarks
| 1. |
What Is Bit Stuffing? |
|
Answer» CAN uses a Non-Return-to-Zero protocol, NRZ-5, with bit stuffing. The idea behind bit stuffing is to provide a guaranteed EDGE on the signal so the receiver can resynchronize with the TRANSMITTER before minor clock discrepancies between the TWO nodes can cause a problem. With NRZ-5 the transmitter transmits at most FIVE consecutive bits with the same value. After five bits with the same value (zero or one), the transmitter inserts a stuff bit with the opposite STATE. CAN uses a Non-Return-to-Zero protocol, NRZ-5, with bit stuffing. The idea behind bit stuffing is to provide a guaranteed edge on the signal so the receiver can resynchronize with the transmitter before minor clock discrepancies between the two nodes can cause a problem. With NRZ-5 the transmitter transmits at most five consecutive bits with the same value. After five bits with the same value (zero or one), the transmitter inserts a stuff bit with the opposite state. |
|