SPRUJ42 User guide | 德州仪器 TI.com.cn

SPRUJ42E March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1

PRODUCTION DATA

5.11.2.11 LIN_SCIFORMAT Register

11.2.11.1 LIN_SCIFORMAT Register (Offset = 28h) [reset = 0h]

The SCIFORMAT register is used to set up the character and frame lengths.

Table 5-1312 Instance Table

Instance Name	Physical Address
LIN0	5240 0028h
LIN1	5240 1028h
LIN2	5240 2028h
LIN3	5240 3028h
LIN4	5240 4028h

Figure 5-649 LIN_SCIFORMAT Name Register

31	30	29	28	27	26	25	24
RESERVED_2
R
0h
23	22	21	20	19	18	17	16
RESERVED_2					LENGTH
R					R/W
0h					0h
15	14	13	12	11	10	9	8
RESERVED_1
R
0h
7	6	5	4	3	2	1	0
RESERVED_1					CHAR
R					R/W
0h					0h

Table 5-1313 LIN_SCIFORMAT Register Field Descriptions

Bit	Field	Type	Reset	Description
31:19	RESERVED_2	R	0h	Reserved
18:16	LENGTH	R/W	0h	Frame length control bits. In LIN mode, these bits indicate the number of bytes in the response field from 1 to 8 bytes. In buffered SCI mode, these bits indicate the number of characters. When these bits are used to indicate LIN response length [SCIGCR1[0] = 1], then when there is an ID RX match, this value should be updated with the expected length of the response. In buffered SCI mode, these bits indicate the number of characters with SCIFORMAT[2:0] bits per character. i.e. these bits indicate the transmitter/receiver format for the number of characters: 1 to 8. There can be up to eight characters with eight bits each. 7 The response field has 8 bytes/characters. 6 The response field has 7 bytes/characters. 5 The response field has 6 bytes/characters. 4 The response field has 5 bytes/characters. 3 The response field has 4 bytes/characters. 2 The response field has 3 bytes/characters. 1 The response field has 2 bytes/characters. 0 The response field has 1 bytes/characters.
15:3	RESERVED_1	R	0h	Reserved
2:0	CHAR	R/W	0h	Character length control bits. These bits are effective in SCI compatible mode only. These bits set the SCI character length from 1 to 8 bits. Note: In compatibility mode or buffered SCI mode, when data of fewer than eight bits in length is received, it is left justified in SCIRD/RDy and padded with trailing zeros. Data read from the SCIRD should be shifted by software to make the received data right justified. Note: Data written to the SCITD should be right justified but does not need to be padded with leading zeros. These bits are witable in SCI mode only. 7 The character is 8 bits long. 6 The character is 7 bits long. 5 The character is 6 bits long. 4 The character is 5 bits long. 3 The character is 4 bits long. 2 The character is 3 bits long. 1 The character is 2 bits long. 0 The character is 1 bits long.