Table 1.

Types of error frames.

Error Type	Description
bit error	The transmitted data is inconsistent with what is presented in the bus; therefore, an error frame is sent out.
stuff error	When six consecutive identical bits are detected, an error frame is sent out.
CRC error	An error frame is sent out in response to a CRC error.
form error	If the delimiter bit is 0, an error frame is sent out, starting with the next bit.
acknowledgment error	The transmitter sends out an error frame if a response is not received after the ACK field.