AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 608

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

25.6.9.11
Figure 25-43. Response Data Length
9166C–AVR-08/11
Break
Sync
Response Data Length
Sync
Field
The LIN response data length is the number of data fields (bytes) of the response excluding the
checksum.
The response data length can either be configured by the user or be defined automatically by
bits 4 and 5 of the Identifier (compatibility to LIN Specification 1.1). The user can choose
between these two modes by the DLM bit of the LIN Mode register (LINMR):
Table 25-14. Response Data Length if DLM = 1
• DLM = 0: the response data length is configured by the user via the DLC field of the LIN
• DLM = 1: the response data length is defined by the Identifier (IDCHR in LINIR) according to
Mode register (LINMR). The response data length is equal to (DLC + 1) bytes. DLC can be
programmed from 0 to 255, so the response can contain from 1 data byte up to 256 data
bytes.
the table below. The DLC field of the LIN Mode register (LINMR) is discarded. The response
can contain 2 or 4 or 8 data bytes.
Identifier
IDCHR[5]
Field
0
0
1
1
Data
Field
User configuration: 1 - 256 data fields (DLC+1)
Identifier configuration: 2/4/8 data fields
IDCHR[4]
Data
Field
0
1
0
1
Data
Field
Response Data Length [bytes]
2
2
4
8
Data
Field
AT32UC3C
Checksum
Field
608