63.10.25 USART LIN Mode Register

This register is relevant only if USART_MODE = 0xA or 0xB in the USART Mode Register.

Name: FLEX_US_LINMR
Offset: 0x254
Reset: 0x00000000
Property: Read/Write

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
       SYNCDISPDCM 
Access R/WR/W 
Reset 00 
Bit 15141312111098 
 DLC[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 WKUPTYPFSDISDLMCHKTYPCHKDISPARDISNACT[1:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bit 17 – SYNCDIS Synchronization Disable

ValueDescription
0

The synchronization procedure is performed in LIN client node configuration.

1

The synchronization procedure is not performed in LIN client node configuration.

Bit 16 – PDCM  DMAC Mode

ValueDescription
0

The LIN mode register FLEX_US_LINMR is not written by the DMAC.

1

The LIN mode register FLEX_US_LINMR (excepting that flag) is written by the DMAC.

Bits 15:8 – DLC[7:0] Data Length Control

ValueDescription
0–255

Defines the response data length if DLM = 0, in that case the response data length is equal to DLC+1 bytes.

Bit 7 – WKUPTYP Wake-up Signal Type

ValueDescription
0

Setting the LINWKUP bit in the control register sends a LIN 2.0 wake-up signal.

1

Setting the LINWKUP bit in the control register sends a LIN 1.3 wake-up signal.

Bit 6 – FSDIS Frame Slot Mode Disable

ValueDescription
0

The Frame Slot mode is enabled.

1

The Frame Slot mode is disabled.

Bit 5 – DLM Data Length Mode

ValueDescription
0

The response data length is defined by the DLC field of this register.

1

The response data length is defined by the bits 5 and 6 of the identifier (FLEX_US_LINIR.IDCHR).

Bit 4 – CHKTYP Checksum Type

ValueDescription
0

LIN 2.0 “enhanced” checksum

1

LIN 1.3 “classic” checksum

Bit 3 – CHKDIS Checksum Disable

ValueDescription
0

In host node configuration, the checksum is computed and sent automatically. In client node configuration, the checksum is checked automatically.

1

Whatever the node configuration is, the checksum is not computed/sent and it is not checked.

Bit 2 – PARDIS Parity Disable

ValueDescription
0

In host node configuration, the identifier parity is computed and sent automatically. In host node and client node configuration, the parity is checked automatically.

1

Whatever the node configuration is, the Identifier parity is not computed/sent and it is not checked.

Bits 1:0 – NACT[1:0] LIN Node Action

Values which are not listed in the table must be considered as “reserved”.

ValueNameDescription
0 PUBLISH

The USART transmits the response.

1 SUBSCRIBE

The USART receives the response.

2 IGNORE

The USART does not transmit and does not receive the response.